Hail Map for Pierpont, SD

The Pierpont, SD area has had 2 reports of on-the-ground hail by trained spotters, and has been under severe weather warnings 2 times during the past 12 months. Doppler radar has detected hail at or near Pierpont, SD on 42 occasions, including 2 occasions during the past year.

Name: Pierpont, SD
Where Located: 31.9 miles E of Aberdeen, SD
Map: Google Map for Pierpont, SD
Population: 135
Housing Units: 78
More Info: Search Google for Pierpont, SD

Hail and Wind Damage Spotted near Pierpont, SD

Date / Time Report Details
9/29/2023 7:07 AM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 9/29/2023 7:13 AM CDT At 707 am cdt, a severe thunderstorm was located 7 miles west of pierpont, or 7 miles northeast of groton, moving northeast at 45 mph (radar indicated). Hazards include ping pong ball size hail. People and animals outdoors will be injured. expect damage to roofs, siding, windows, and vehicles. this severe storm will be near, langford around 715 am cdt. hail threat, radar indicated max hail size, 1. 50 in wind threat, radar indicated max wind gust, <50 mph.
9/29/2023 6:55 AM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 9/29/2023 7:02 AM CDT At 655 am cdt, a severe thunderstorm was located over groton, moving northeast at 45 mph (radar indicated). Hazards include golf ball size hail and 60 mph wind gusts. People and animals outdoors will be injured. expect hail damage to roofs, siding, windows, and vehicles. expect wind damage to roofs, siding, and trees. this severe thunderstorm will be near, groton around 700 am cdt. langford around 715 am cdt. thunderstorm damage threat, considerable hail threat, radar indicated max hail size, 1. 75 in wind threat, radar indicated max wind gust, 60 mph.
4/19/2023 2:49 AM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 4/19/2023 3:00 AM CDT At 248 am cdt, severe thunderstorms were located along a line extending from britton to 6 miles west of opitz lake to near antelope lake, moving east at 50 mph (radar indicated). Hazards include 60 mph wind gusts. Expect damage to roofs, siding, and trees. severe thunderstorms will be near, roslyn, opitz lake and fort sisseton state park around 255 am cdt. eden, rush lake, cattail lake, minnewasta lake and roy lake rec area around 300 am cdt. waubay, lake city, blue dog lake, piyas lake, waubay lake, waubay wildlife rec area and bitter lake around 305 am cdt. other locations in the path of these severe thunderstorms include enemy swim housing, ortley, buffalo lakes, red iron housing, clear lake rec area, hillhead, campbell slough, enemy swim lake, pickerel lake rec area, veblen, long hollow housing, rudebusch corner, veblen flats housing, sica hollow state park, finley heights housing, sisseton, claire city, dakota connection & casino, peever and peever flats housing. hail threat, radar indicated max hail size, <. 75 in wind threat, radar indicated max wind gust, 60 mph.
8/5/2022 7:54 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 11/25/2022 1:40 AM CDT At 754 pm cdt, a severe thunderstorm was located near langford, moving northeast at 40 mph (emergency management). Hazards include 60 mph wind gusts and half dollar size hail. Hail damage to vehicles is expected. expect wind damage to roofs, siding, and trees. This severe thunderstorm will remain over mainly rural areas of northwestern day, southwestern marshall and southeastern brown counties.
8/5/2022 7:42 PM CDT Ping Pong Ball sized hail reported 0.4 miles SSW of Pierpont, SD, report from facebook.
8/5/2022 7:34 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 11/25/2022 1:49 AM CDT At 733 pm cdt, a severe thunderstorm was located over groton, moving northeast at 30 mph (emergency management. at 733 pm half dollar sized hail was reported in groton). Hazards include two inch hail and 60 mph wind gusts. People and animals outdoors will be injured. expect hail damage to roofs, siding, windows, and vehicles. expect wind damage to roofs, siding, and trees. this severe storm will be near, andover around 745 pm cdt. other locations in the path of this severe thunderstorm include pierpont and langford. thunderstorm damage threat, considerable hail threat, radar indicated max hail size, 2. 00 in wind threat, radar indicated max wind gust, 60 mph.
8/5/2022 7:27 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 11/25/2022 1:49 AM CDT At 727 pm cdt, a severe thunderstorm was located over groton, moving northeast at 30 mph (radar indicated). Hazards include ping pong ball size hail and 60 mph wind gusts. People and animals outdoors will be injured. expect hail damage to roofs, siding, windows, and vehicles. expect wind damage to roofs, siding, and trees. this severe thunderstorm will be near, andover around 745 pm cdt. other locations in the path of this severe thunderstorm include pierpont and langford. hail threat, radar indicated max hail size, 1. 50 in wind threat, radar indicated max wind gust, 60 mph.
6/20/2022 9:48 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 6/20/2022 9:57 PM CDT At 948 pm cdt, a severe thunderstorm was located near putney, or 9 miles north of groton, moving northeast at 55 mph (radar indicated). Hazards include 70 mph wind gusts. Expect considerable tree damage. damage is likely to mobile homes, roofs, and outbuildings. this severe thunderstorm will be near, claremont around 955 pm cdt. amherst around 1005 pm cdt. other locations in the path of this severe thunderstorm include britton and kidder. thunderstorm damage threat, considerable hail threat, radar indicated max hail size, <. 75 in wind threat, radar indicated max wind gust, 70 mph.
5/30/2022 2:35 AM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 5/30/2022 2:52 AM CDT At 234 am cdt, a severe thunderstorm was located over webster, moving north at 45 mph (trained weather spotters). Hazards include 60 mph wind gusts. Expect damage to roofs, siding, and trees. locations impacted include, roslyn and opitz lake. hail threat, radar indicated max hail size, <. 75 in wind threat, radar indicated max wind gust, 60 mph.
5/30/2022 2:15 AM CDT At 215 am cdt, a severe thunderstorm was located near swan lake, or 12 miles south of webster, moving north at 45 mph (trained weather spotters). Hazards include 60 mph wind gusts. Expect damage to roofs, siding, and trees. this severe thunderstorm will be near, antelope lake around 225 am cdt. webster around 235 am cdt. other locations in the path of this severe thunderstorm include roslyn and opitz lake. hail threat, radar indicated max hail size, <. 75 in wind threat, radar indicated max wind gust, 60 mph.
5/12/2022 6:37 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 5/12/2022 11:33 PM CDT The severe thunderstorm warning for northwestern deuel, southwestern roberts, day, southeastern brown, northern hamlin, grant, northern clark, northeastern spink and codington counties will expire at 645 pm cdt, the storms which prompted the warning have moved out of the area. therefore, the warning will be allowed to expire. a tornado watch remains in effect until 1000 pm cdt for northeastern south dakota. remember, severe thunderstorm and tornado warnings remains in effect for portions of brown, day, grant, and roberts counties.
5/12/2022 6:29 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 5/12/2022 11:47 PM CDT At 629 pm cdt, severe thunderstorms capable of producing both tornadoes and extensive straight line wind damage were located along a line extending from near andover to near pierpont to 8 miles northeast of bristol to near roslyn to near waubay lake to near blue dog lake, moving north at 50 mph (radar indicated rotation). Hazards include tornado. Flying debris will be dangerous to those caught without shelter. mobile homes will be damaged or destroyed. damage to roofs, windows, and vehicles will occur. tree damage is likely. these dangerous storms will be near, langford and opitz lake around 640 pm cdt. eden, piyas lake, cattail lake and fort sisseton state park around 645 pm cdt. Other locations in the path of these tornadic storms include roy lake rec area, buffalo lakes, lake city, amherst, red iron housing, clear lake rec area, britton, sica hollow state park and hillhead.
5/12/2022 6:28 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 5/12/2022 11:47 PM CDT At 628 pm cdt, severe thunderstorms were located along a line extending from near putney to rudebusch corner, moving north at 65 mph (trained weather spotters). Hazards include 70 mph wind gusts and penny size hail. Expect considerable tree damage. damage is likely to mobile homes, roofs, and outbuildings. severe thunderstorms will be near, houghton and buffalo lakes around 640 pm cdt. sand lake wildlife refuge around 645 pm cdt. Other locations in the path of these severe thunderstorms include hecla and sica hollow state park.
5/12/2022 5:51 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 5/12/2022 6:11 PM CDT At 548 pm cdt, severe thunderstorms were located along a line extending from near camrose colony to clark to near hayti, moving north at 50 mph. these are destructive storms for codington, clark, day, grant counties (trained weather spotters. 70 to 80 mph winds were reported near lake poinsett). Hazards include 80 mph wind gusts and quarter size hail. Flying debris will be dangerous to those caught without shelter. mobile homes will be heavily damaged. expect considerable damage to roofs, windows, and vehicles. extensive tree damage and power outages are likely. severe thunderstorms will be near, garden city and hillcrest colony around 555 pm cdt. brentford and goose lake around 600 pm cdt. conde, bradley, pelican lake, lake kampeska, sandy shore rec area, memorial park camping site and crocker around 605 pm cdt. Other locations in the path of these severe thunderstorms include watertown, wallace, verdon, lily, swan lake, watertown city park, rauville, butler, dakota sioux casino, waverly, ferney, antelope lake, webster, groton, south shore, andover and rush lake.
5/7/2022 9:25 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 5/7/2022 9:36 PM CDT The severe thunderstorm warning for northwestern day and western marshall counties will expire at 930 pm cdt, the storms which prompted the warning have weakened below severe limits, and no longer pose an immediate threat to life or property. therefore, the warning will be allowed to expire. however gusty winds are still possible with these thunderstorms. a severe thunderstorm watch remains in effect until 1100 pm cdt for northeastern south dakota.
5/7/2022 9:12 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 5/7/2022 9:22 PM CDT At 912 pm cdt, severe thunderstorms were located along a line extending from amherst to near langford to near ferney, moving northeast at 40 mph (radar indicated). Hazards include 60 mph wind gusts and penny size hail. Expect damage to roofs, siding, and trees. Locations impacted include, britton, langford, pierpont, andover and amherst.
5/7/2022 8:59 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 5/7/2022 9:14 PM CDT At 859 pm cdt, severe thunderstorms were located along a line extending from near claremont to 7 miles northeast of groton to near ferney, moving northeast at 40 mph (radar indicated). Hazards include 60 mph wind gusts and nickel size hail. Expect damage to roofs, siding, and trees. Locations impacted include, claremont, pierpont, amherst, langford, andover and britton.
5/7/2022 8:44 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 5/7/2022 9:07 PM CDT At 843 pm cdt, severe thunderstorms were located along a line extending from near columbia to near groton to near brentford, moving northeast at 40 mph (radar indicated). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect wind damage to roofs, siding, and trees. severe thunderstorms will be near, groton and putney around 850 pm cdt. claremont around 900 pm cdt. Other locations in the path of these severe thunderstorms include ferney, pierpont, amherst, langford, andover and britton.
10/9/2021 5:18 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 12/29/2021 7:13 AM CDT At 518 pm cdt, severe thunderstorms were located along a line extending from 8 miles northeast of frederick to 6 miles northwest of webster to 8 miles southeast of carpenter, moving east at 30 mph (radar indicated). Hazards include 60 mph wind gusts and penny size hail. Expect damage to roofs, siding, and trees. severe thunderstorms will be near, webster around 525 pm cdt. roslyn around 530 pm cdt. willow lake around 535 pm cdt. Other locations in the path of these severe thunderstorms include grenville, waubay lake, minnewasta lake, rush lake, waubay, waubay wildlife rec area, blue dog lake, bryant, enemy swim lake, campbell slough, enemy swim housing, pickerel lake rec area, rudebusch corner, hamlin education center and kellerton church.
10/9/2021 5:16 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 12/29/2021 7:11 AM CDT At 516 pm cdt, a severe thunderstorm capable of producing a tornado was located near pierpont, or 13 miles northwest of webster, moving northeast at 35 mph (radar indicated rotation). Hazards include tornado. Flying debris will be dangerous to those caught without shelter. mobile homes will be damaged or destroyed. damage to roofs, windows, and vehicles will occur. tree damage is likely. this dangerous storm will be near, roslyn around 530 pm cdt. opitz lake and fort sisseton state park around 535 pm cdt. Other locations in the path of this tornadic thunderstorm include eden, cattail lake, lake city, clear lake rec area, piyas lake, roy lake rec area and buffalo lakes.
10/9/2021 4:57 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 12/29/2021 7:10 AM CDT At 445 pm cdt, a severe thunderstorm capable of producing a tornado was located over groton, moving northeast at 40 mph (radar indicated rotation). Hazards include tornado. Flying debris will be dangerous to those caught without shelter. mobile homes will be damaged or destroyed. damage to roofs, windows, and vehicles will occur. tree damage is likely. this dangerous storm will be near, andover around 455 pm cdt. pierpont around 505 pm cdt. Other locations in the path of this tornadic thunderstorm include langford.
10/9/2021 4:33 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 12/29/2021 7:08 AM CDT At 433 pm cdt, severe thunderstorms were located along a line extending from near stratford to near crandall to near carpenter, moving east at 45 mph (radar indicated). Hazards include 60 mph wind gusts and penny size hail. Expect damage to roofs, siding, and trees. severe thunderstorms will be near, crandall around 440 pm cdt. crocker around 445 pm cdt. Other locations in the path of these severe thunderstorms include willow lake, bradley, butler, lily, andover, mayfield colony, swan lake, bristol, pierpont, wallace, vienna, naples, antelope lake, hazel, kellerton church and grass lake.
8/24/2021 1:54 AM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 12/28/2021 4:36 AM CDT The severe thunderstorm warning for northern day and marshall counties will expire at 200 am cdt, the storm which prompted the warning has weakened below severe limits, and no longer poses an immediate threat to life or property. therefore, the warning will be allowed to expire. however gusty winds are still possible with this thunderstorm. a severe thunderstorm watch remains in effect until 300 am cdt for northeastern south dakota.
8/24/2021 1:30 AM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 1/6/2022 5:28 PM CDT At 130 am cdt, a severe thunderstorm was located near fort sisseton state park, or 10 miles southeast of britton, moving east at 45 mph (radar indicated). Hazards include 60 mph wind gusts. Expect damage to roofs, siding, and trees. locations impacted include, roy lake rec area, eden, lake city, hillhead, red iron housing, clear lake rec area, sica hollow state park and buffalo lakes. hail threat, radar indicated max hail size, <. 75 in wind threat, radar indicated max wind gust, 60 mph.
8/24/2021 12:56 AM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 12/28/2021 4:33 AM CDT At 1255 am cdt, a severe thunderstorm was located near claremont, or 15 miles west of britton, moving east at 45 mph (radar indicated). Hazards include 70 mph wind gusts. Expect considerable tree damage. damage is likely to mobile homes, roofs, and outbuildings. this severe thunderstorm will be near, amherst around 105 am cdt. britton around 115 am cdt. other locations in the path of this severe thunderstorm include cattail lake, fort sisseton state park, eden, lake city, roy lake rec area, hillhead, red iron housing, clear lake rec area, sica hollow state park and buffalo lakes. thunderstorm damage threat, considerable hail threat, radar indicated max hail size, <. 75 in wind threat, radar indicated max wind gust, 70 mph.
6/11/2021 4:16 AM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 1/16/2022 4:09 AM CDT At 415 am cdt, severe thunderstorms were located along a line extending from near kidder to near frankfort, moving east at 60 mph (radar indicated). Hazards include 60 mph wind gusts. Expect damage to roofs, siding, and trees. severe thunderstorms will be near, veblen flats housing and hillhead around 430 am cdt. veblen around 435 am cdt. Other locations in the path of these severe thunderstorms include claire city, new effington, garden city, victor, long lake and medicine lake.
5/24/2021 12:46 AM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 1/19/2022 11:19 AM CDT At 1246 am cdt, severe thunderstorms were located along a line extending from 8 miles east of ellendale to near claremont to near pierpont, moving northeast at 40 mph (trained weather spotters. at 1235 am cdt, a 59 mph wind gust was reported 7 miles south of claremont). Hazards include 60 mph wind gusts. Expect damage to roofs, siding, and trees. Locations impacted include, langford, hecla, pierpont, claremont, andover, amherst, sand lake wildlife refuge and houghton.
5/24/2021 12:30 AM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 1/19/2022 11:19 AM CDT At 1228 am cdt, severe thunderstorms were located along a line extending from near frederick to near putney to near andover, moving northeast at 45 mph (trained weather spotters. at 1219 pm cdt, a 58 mph wind gust was reported 4 miles southwest of columbia). Hazards include 60 mph wind gusts. Expect damage to roofs, siding, and trees. in addition, the wind gusts will lead to blowing dust and reduced visibilities. Locations impacted include, andover, claremont, langford, pierpont and amherst.
5/24/2021 12:11 AM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 1/19/2022 11:20 AM CDT At 1210 am cdt, severe thunderstorms were located along a line extending from near leola to near aberdeen to near stratford, moving northeast at 40 mph (trained weather spotters. at 1210 am cdt, a 58 mph wind gust was reported the aberdeen airport). Hazards include 60 mph wind gusts. Expect damage to roofs, siding, and trees. severe thunderstorms will be near, bath and verdon around 1215 am cdt. ferney and tacoma park around 1220 am cdt. columbia, putney, forbes and elm lake around 1225 am cdt. groton around 1230 am cdt. Other locations in the path of these severe thunderstorms include andover, houghton, sand lake wildlife refuge, pierpont, claremont, amherst and langford.
8/24/2020 1:56 AM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 2/3/2022 9:03 PM CDT At 156 am cdt, a severe thunderstorm was located near pierpont, or 12 miles northwest of webster, moving east at 35 mph (radar indicated). Hazards include ping pong ball size hail and 60 mph wind gusts. People and animals outdoors will be injured. expect hail damage to roofs, siding, windows, and vehicles. expect wind damage to roofs, siding, and trees. Locations impacted include, pierpont.
8/24/2020 1:33 AM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 2/3/2022 9:04 PM CDT At 133 am cdt, a severe thunderstorm was located over andover, or 11 miles east of groton, moving east at 25 mph (radar indicated). Hazards include 60 mph wind gusts and half dollar size hail. Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees.
8/12/2020 4:08 AM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 8/12/2020 4:11 AM CDT At 408 am cdt, severe thunderstorms were located along a line extending from near britton to near fort sisseton state park to near waubay lake, moving east at 40 mph (radar indicated). Hazards include 60 mph wind gusts and nickel size hail. expect damage to roofs, siding, and trees
6/20/2020 7:12 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 6/20/2020 7:15 PM CDT At 712 pm cdt, a severe thunderstorm was located over opitz lake, or 15 miles north of webster, moving east at 30 mph (radar indicated). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect wind damage to roofs, siding, and trees. Locations impacted include, langford, roslyn, pierpont, fort sisseton state park, roy lake rec area, cattail lake, opitz lake and waubay lake.
6/20/2020 6:57 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 6/20/2020 7:00 PM CDT At 657 pm cdt, a severe thunderstorm was located 7 miles east of langford, or 15 miles south of britton, moving east at 30 mph (radar indicated). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect wind damage to roofs, siding, and trees. Locations impacted include, langford, roslyn, pierpont, fort sisseton state park, roy lake rec area, cattail lake, opitz lake and waubay lake.
6/20/2020 6:41 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 6/20/2020 6:44 PM CDT At 641 pm cdt, a severe thunderstorm was located over langford, or 14 miles northeast of groton, moving east at 30 mph (radar indicated). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees.
6/4/2020 7:30 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 6/4/2020 7:33 PM CDT At 730 pm cdt, severe thunderstorms were located along a line extending from pierpont to near verdon, moving east at 50 mph. these are very dangerous storms (radar indicated). Hazards include 90 mph wind gusts. You are in a life-threatening situation. flying debris may be deadly to those caught without shelter. mobile homes will be heavily damaged or destroyed. homes and businesses will have substantial roof and window damage. expect extensive tree damage and power outages. Locations impacted include, groton, bristol, roslyn, pierpont, andover, stratford, butler, lily and ferney.
6/4/2020 7:14 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 6/4/2020 7:17 PM CDT At 713 pm cdt, severe thunderstorms were located along a line extending from near groton to near stratford, moving east at 50 mph. these are very dangerous storms (radar indicated. at 7pm 80 mph winds were reported in aberdeen). Hazards include 80 mph wind gusts. Flying debris will be dangerous to those caught without shelter. mobile homes will be heavily damaged. expect considerable damage to roofs, windows, and vehicles. Extensive tree damage and power outages are likely.
9/9/2019 8:11 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 9/9/2019 8:14 PM CDT At 810 pm cdt, a severe thunderstorm was located near pierpont, or 12 miles northwest of webster, moving east at 25 mph (radar indicated. at 803 pm, a tornado was reported by day county emergency management around 6 miles north northeast of bristol). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect wind damage to roofs, siding, and trees. Locations impacted include, bristol and pierpont.
9/9/2019 7:46 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 9/9/2019 7:49 PM CDT At 746 pm cdt, a severe thunderstorm was located over andover, or 9 miles east of groton, moving east at 25 mph (radar indicated). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees.
7/19/2019 9:24 AM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 7/19/2019 9:27 AM CDT At 922 am cdt, a severe thunderstorm was located near langford, or 14 miles south of britton, moving east at 50 mph. this storm has a history of downing power lines and large tree branches (radar indicated). Hazards include 70 mph wind gusts and nickel size hail. Expect considerable tree damage. Damage is likely to mobile homes, roofs, and outbuildings.
7/19/2019 9:14 AM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 7/19/2019 9:17 AM CDT At 913 am cdt, a severe thunderstorm was located near langford, or 12 miles northeast of groton, moving east at 55 mph. downed tree branches and power lines have been reported (radar indicated). Hazards include 70 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect considerable tree damage. wind damage is also likely to mobile homes, roofs, and outbuildings. Locations impacted include, webster, groton, bristol, langford, roslyn, pierpont, claremont, putney, andover and waubay lake.
7/19/2019 9:04 AM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 7/19/2019 9:07 AM CDT At 902 am cdt, a severe thunderstorm was located near groton, moving east at 45 mph. large branches, power lines, and billboards have been damaged. this is a very dangerous storm (radar indicated). Hazards include 80 mph wind gusts and quarter size hail. Flying debris will be dangerous to those caught without shelter. mobile homes will be heavily damaged. expect considerable damage to roofs, windows, and vehicles. extensive tree damage and power outages are likely. Locations impacted include, webster, groton, bath, bristol, langford, roslyn, columbia, pierpont, claremont, putney, andover, ferney and waubay lake.
7/19/2019 8:48 AM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 7/19/2019 8:51 AM CDT At 848 am cdt, a severe thunderstorm was located over bath, or near aberdeen, moving east at 55 mph (radar indicated). Hazards include 70 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect considerable tree damage. Wind damage is also likely to mobile homes, roofs, and outbuildings.
5/28/2018 3:42 AM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 2/9/2022 4:15 AM CDT The severe thunderstorm warning for northwestern day and south central marshall counties will expire at 345 am cdt, the storm which prompted the warning has weakened below severe limits, and no longer poses an immediate threat to life or property. therefore the warning will be allowed to expire. however small hail is still possible with this thunderstorm.
5/28/2018 3:38 AM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 5/28/2018 3:41 AM CDT At 337 am cdt, a severe thunderstorm was located over pierpont, or 15 miles east of groton, moving northeast at 35 mph (radar indicated). Hazards include quarter size hail. Damage to vehicles is expected. Locations impacted include, langford, pierpont and andover.
5/28/2018 3:21 AM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 5/28/2018 3:24 AM CDT At 320 am cdt, a severe thunderstorm was located near andover, or near groton, moving northeast at 35 mph (radar indicated). Hazards include quarter size hail. damage to vehicles is expected
9/22/2017 1:50 AM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 9/22/2017 1:53 AM CDT The severe thunderstorm warning for northwestern day and east central brown counties will expire at 200 am cdt, the storm which prompted the warning has weakened below severe limits, and has exited the warned area. therefore, the warning will be allowed to expire. however gusty winds and heavy rain are still possible with this thunderstorm.
9/22/2017 1:40 AM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 9/22/2017 1:44 AM CDT At 140 am cdt, a severe thunderstorm was located near pierpont, or 9 miles east of groton, moving northeast at 25 mph (radar indicated). Hazards include quarter size hail. Damage to vehicles is expected. Locations impacted include, pierpont and andover.
9/22/2017 1:31 AM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 9/22/2017 1:35 AM CDT At 129 am cdt, a severe thunderstorm was located 7 miles east of pierpont, or 11 miles northwest of webster, moving northeast at 30 mph. another severe thunderstorm was near roslyn (radar indicated). Hazards include ping pong ball size hail and 60 mph wind gusts. People and animals outdoors will be injured. expect hail damage to roofs, siding, windows, and vehicles. expect wind damage to roofs, siding, and trees. Locations impacted include, roslyn, pierpont, andover, grenville, fort sisseton state park, cattail lake, pickerel lake rec area, opitz lake, waubay lake and piyas lake.
9/22/2017 1:09 AM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 9/22/2017 1:14 AM CDT At 109 am cdt, a severe thunderstorm was located near ferney, or 12 miles south of groton, moving north at 35 mph (radar indicated). Hazards include ping pong ball size hail. People and animals outdoors will be injured. expect damage to roofs, siding, windows, and vehicles. Locations impacted include, groton, pierpont, putney, andover, stratford, verdon and ferney.
9/22/2017 1:07 AM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 9/22/2017 1:11 AM CDT At 106 am cdt, a severe thunderstorm was located over bristol, or 11 miles west of webster, moving northeast at 35 mph (radar indicated). Hazards include half dollar size hail. Damage to vehicles is expected. Locations impacted include, webster, bristol, roslyn, pierpont, andover, grenville, butler, waubay lake, cattail lake, fort sisseton state park, pickerel lake rec area, opitz lake and piyas lake.
9/22/2017 12:55 AM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 9/22/2017 12:59 AM CDT At 1255 am cdt, a severe thunderstorm was located near brentford, or 20 miles south of groton, moving northeast at 35 mph (radar indicated). Hazards include golf ball size hail. People and animals outdoors will be injured. Expect damage to roofs, siding, windows, and vehicles.
9/22/2017 12:48 AM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 9/22/2017 12:53 AM CDT At 1248 am cdt, a severe thunderstorm was located near crandall, or 19 miles southeast of groton, moving northeast at 40 mph (radar indicated). Hazards include ping pong ball size hail. People and animals outdoors will be injured. Expect damage to roofs, siding, windows, and vehicles.
6/13/2017 7:40 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 2/18/2022 3:29 PM CDT The severe thunderstorm warning for northwestern day, southwestern marshall and northeastern brown counties will expire at 745 pm cdt, the storms which prompted the warning has moved into marshall county and will allow the existing warning to expire. a tornado watch remains in effect until 1000 pm cdt for northeastern south dakota.
6/13/2017 7:24 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 6/13/2017 7:31 PM CDT At 724 pm cdt, severe thunderstorms were located along a line extending from 7 miles northeast of frederick to andover, moving northeast at 45 mph (radar indicated). Hazards include 70 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect considerable tree damage. Wind damage is also likely to mobile homes, roofs, and outbuildings.
6/13/2017 6:02 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 6/13/2017 6:07 PM CDT At 602 pm cdt, a severe thunderstorm was located near bath, or near groton, moving northeast at 40 mph (radar indicated). Hazards include golf ball size hail and 60 mph wind gusts. People and animals outdoors will be injured. expect hail damage to roofs, siding, windows, and vehicles. expect wind damage to roofs, siding, and trees. locations impacted include, groton, bath, pierpont and putney. A tornado watch remains in effect until 1000 pm cdt for northeastern south dakota.
6/13/2017 5:44 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 6/13/2017 5:47 PM CDT At 544 pm cdt, a severe thunderstorm was located over stratford, or 12 miles southeast of aberdeen, moving northeast at 40 mph (radar indicated). Hazards include ping pong ball size hail and 60 mph wind gusts. People and animals outdoors will be injured. expect hail damage to roofs, siding, windows, and vehicles. Expect wind damage to roofs, siding, and trees.
5/28/2017 4:26 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 5/28/2017 4:29 PM CDT At 426 pm cdt, severe thunderstorms were located along a line extending from 6 miles south of houghton to near mina, moving southeast at 60 mph (emergency management). Hazards include 60 mph wind gusts. Expect damage to roofs, siding, and trees. severe thunderstorms will be near, putney around 430 pm cdt. warner and mansfield around 440 pm cdt. mellette around 445 pm cdt. Pierpont, andover and brentford around 450 pm cdt.
5/16/2017 5:00 AM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 5/16/2017 5:03 AM CDT At 459 am cdt, a severe thunderstorm was located over pierpont, or 14 miles east of groton, moving northeast at 40 mph (radar indicated). Hazards include quarter size hail. Damage to vehicles is expected. this severe thunderstorm will be near, langford around 505 am cdt. Britton around 525 am cdt.
8/10/2016 10:42 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 8/10/2016 10:46 PM CDT At 1042 pm cdt, a severe thunderstorm was located near bristol, or 13 miles west of webster, moving east at 40 mph (radar indicated). Hazards include 60 mph wind gusts and penny size hail. Expect damage to roofs. siding. and trees. This severe storm will be near, bristol around 1045 pm cdt.
8/10/2016 10:14 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 8/10/2016 10:18 PM CDT At 1014 pm cdt, a severe thunderstorm was located near bath, or near groton, moving east at 55 mph (radar indicated). Hazards include 70 mph wind gusts and penny size hail. Expect considerable tree damage. damage is likely to mobile homes, roofs, and outbuildings. this severe thunderstorm will be near, groton and ferney around 1020 pm cdt. andover around 1030 pm cdt. pierpont around 1035 pm cdt. Bristol around 1040 pm cdt.
8/10/2016 4:35 PM CDT Quarter sized hail reported 1.2 miles WSW of Pierpont, SD, .
8/10/2016 4:19 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 8/10/2016 4:23 PM CDT At 418 pm cdt, a severe thunderstorm was located near andover, or 11 miles east of groton, moving northeast at 15 mph (radar indicated). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect wind damage to roofs, siding, and trees. This severe storm will be near, pierpont around 430 pm cdt.
8/10/2016 4:03 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 8/10/2016 4:07 PM CDT At 402 pm cdt, a severe thunderstorm was located near andover, or 8 miles east of groton, moving northeast at 10 mph (radar indicated). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect wind damage to roofs, siding, and trees. This severe thunderstorm will be near, pierpont around 430 pm cdt.
8/10/2016 2:36 AM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 8/10/2016 2:40 AM CDT At 235 am cdt, severe thunderstorms were located along a line extending from near rutland to near fort sisseton state park to near brentford, moving east at 60 mph (radar indicated). Hazards include 70 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect considerable tree damage. wind damage is also likely to mobile homes, roofs, and outbuildings. a brief tornado on the leading edge of the line of storms is possible in the hillhead roy lake area. these severe storms will be near, cattail lake, fort sisseton state park, roy lake rec area and opitz lake around 240 am cdt. eden and lake city around 245 am cdt. clear lake rec area, buffalo lakes, red iron housing, piyas lake and sica hollow state park around 250 am cdt. long hollow housing around 255 am cdt. Sisseton, butler, lily and agency village around 300 am cdt.
8/10/2016 2:18 AM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 8/10/2016 2:21 AM CDT At 218 am cdt, severe thunderstorms were located along a line extending from 7 miles east of ludden to near claremont to 6 miles east of mansfield, moving east at 50 mph (radar indicated). Hazards include 70 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect considerable tree damage. wind damage is also likely to mobile homes, roofs, and outbuildings. severe thunderstorms will be near, amherst around 225 am cdt. langford around 230 am cdt. verdon and ferney around 235 am cdt. fort sisseton state park around 245 am cdt. eden, cattail lake, opitz lake and roy lake rec area around 250 am cdt. bristol, lake city, clear lake rec area and red iron housing around 255 am cdt. butler, lily, buffalo lakes, piyas lake and sica hollow state park around 300 am cdt. Long hollow housing around 305 am cdt.
8/1/2016 11:46 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 8/1/2016 11:49 PM CDT At 1145 pm cdt, a severe thunderstorm was located near bristol, or 13 miles west of webster, moving southeast at 30 mph. this is a very dangerous storm (radar indicated). Hazards include 80 mph wind gusts and two inch hail. Flying debris will be dangerous to those caught without shelter. mobile homes will be heavily damaged. expect considerable damage to roofs, windows, and vehicles. extensive tree damage and power outages are likely. this severe storm will be near, bristol around 1150 pm cdt. butler around 1205 am cdt. Webster around 1210 am cdt.
8/1/2016 11:32 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 8/1/2016 11:35 PM CDT At 1132 pm cdt, a severe thunderstorm was located over andover, or 9 miles east of groton, moving southeast at 30 mph. this is a very dangerous storm (radar indicated). Hazards include 80 mph wind gusts and baseball size hail. Flying debris will be dangerous to those caught without shelter. mobile homes will be heavily damaged. expect considerable damage to roofs, windows, and vehicles. extensive tree damage and power outages are likely. this severe storm will be near, pierpont around 1135 pm cdt. bristol around 1150 pm cdt. butler around 1205 am cdt. Webster around 1210 am cdt.
8/1/2016 11:27 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 8/1/2016 11:31 PM CDT At 1127 pm cdt, a severe thunderstorm was located near andover, or 7 miles east of groton, moving southeast at 30 mph. this is a very dangerous storm (radar indicated). Hazards include baseball size hail and 60 mph wind gusts. People and animals outdoors will be severely injured. expect shattered windows, extensive damage to roofs, siding, and vehicles. this severe storm will be near, pierpont and andover around 1135 pm cdt. bristol around 1155 pm cdt. butler around 1205 am cdt. Webster around 1210 am cdt.
8/1/2016 11:20 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 8/1/2016 11:25 PM CDT At 1120 pm cdt, a severe thunderstorm was located near groton, moving southeast at 30 mph (radar indicated). Hazards include two inch hail and 60 mph wind gusts. People and animals outdoors will be injured. expect hail damage to roofs, siding, windows, and vehicles. expect wind damage to roofs, siding, and trees. this severe thunderstorm will be near, pierpont and andover around 1135 pm cdt. bristol around 1150 pm cdt. butler around 1205 am cdt. Webster around 1210 am cdt.
7/16/2016 4:34 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 7/16/2016 4:38 PM CDT At 434 pm cdt, a severe thunderstorm was located near roslyn, or 7 miles north of webster, moving east at 45 mph (trained weather spotters). Hazards include 77 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect considerable tree damage. wind damage is also likely to mobile homes, roofs, and outbuildings. this severe storm will be near, grenville and minnewasta lake around 440 pm cdt. waubay, waubay wildlife rec area, waubay lake and blue dog lake around 445 pm cdt. enemy swim lake, pickerel lake rec area, campbell slough and enemy swim housing around 450 pm cdt. Rudebusch corner around 455 pm cdt.
7/16/2016 4:28 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 7/16/2016 4:35 PM CDT At 428 pm cdt, a severe thunderstorm was located 7 miles southwest of roslyn, or 7 miles northwest of webster, moving east at 45 mph (trained weather spotters). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect wind damage to roofs, siding, and trees. this severe storm will be near, roslyn around 435 pm cdt. grenville and minnewasta lake around 440 pm cdt. waubay, waubay wildlife rec area, waubay lake and blue dog lake around 445 pm cdt. enemy swim lake, campbell slough, pickerel lake rec area and enemy swim housing around 450 pm cdt. Rudebusch corner around 455 pm cdt.
7/16/2016 4:15 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 7/16/2016 4:19 PM CDT At 414 pm cdt, a severe thunderstorm was located near andover, or 13 miles east of groton, moving east at 45 mph (radar indicated). Hazards include 60 mph wind gusts. Expect damage to roofs. siding. and trees. this severe thunderstorm will be near, webster and roslyn around 435 pm cdt. grenville, waubay wildlife rec area, waubay lake and minnewasta lake around 445 pm cdt. waubay, enemy swim lake, enemy swim housing, campbell slough, pickerel lake rec area and blue dog lake around 450 pm cdt. Rudebusch corner around 455 pm cdt.
7/16/2016 3:37 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 7/16/2016 3:41 PM CDT At 336 pm cdt, a severe thunderstorm was located near bath, or near aberdeen, moving east at 55 mph (nws employees). Hazards include 70 mph wind gusts. Expect considerable tree damage. damage is likely to mobile homes, roofs, and outbuildings. this severe storm will be near, groton and ferney around 350 pm cdt. andover around 400 pm cdt. Pierpont around 405 pm cdt.
7/16/2016 3:34 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 7/16/2016 3:38 PM CDT At 334 pm cdt, a severe thunderstorm was located near aberdeen, moving east at 55 mph (radar indicated). Hazards include 60 mph wind gusts. Expect damage to roofs. siding. and trees. this severe thunderstorm will be near, bath around 340 pm cdt. groton and ferney around 350 pm cdt. andover around 400 pm cdt. Pierpont around 405 pm cdt.
6/22/2016 3:26 AM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 6/22/2016 3:31 AM CDT At 325 am cdt, severe thunderstorms were located along a line extending from claremont to near putney to near bath, moving southeast at 65 mph (radar indicated). Hazards include 70 mph wind gusts and penny size hail. Expect considerable tree damage. damage is likely to mobile homes, roofs, and outbuildings. these severe storms will be near, groton around 330 am cdt. langford and ferney around 335 am cdt. pierpont and andover around 340 am cdt. Bristol around 345 am cdt.
6/22/2016 3:13 AM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 6/22/2016 3:16 AM CDT At 311 am cdt, severe thunderstorms were located along a line extending from near houghton to columbia to near westport, moving southeast at 65 mph (radar indicated. at 305 am cdt...a 65 mph wind gust was reported 7 miles north of frederick). Hazards include 70 mph wind gusts and penny size hail. Expect considerable tree damage. damage is likely to mobile homes, roofs, and outbuildings. severe thunderstorms will be near, bath and putney around 320 am cdt. claremont and amherst around 325 am cdt. groton around 330 am cdt. langford, andover and ferney around 335 am cdt. pierpont around 340 am cdt. Bristol around 345 am cdt.
7/17/2015 7:28 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 7/17/2015 7:33 PM CDT At 727 pm cdt, a severe thunderstorm was located near webster, moving east at 30 mph (radar indicated). Hazards include two inch hail and 70 mph wind gusts. People and animals outdoors will be injured. expect hail damage to roofs, siding, windows and vehicles. expect considerable tree damage. wind damage is also likely to mobile homes, roofs and outbuildings. this severe thunderstorm will be near, webster around 740 pm cdt. antelope lake around 745 pm cdt. grenville and minnewasta lake around 750 pm cdt. rush lake, waubay lake and waubay wildlife rec area around 755 pm cdt. waubay, blue dog lake, campbell slough, enemy swim housing, bitter lake and enemy swim lake around 800 pm cdt. Ortley and rudebusch corner around 810 pm cdt.
7/17/2015 7:02 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 7/17/2015 7:05 PM CDT At 702 pm cdt, severe thunderstorms were located along a line extending from 6 miles east of kidder to near fort sisseton state park to lily, moving east at 50 mph (radar indicated). Hazards include 70 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect considerable tree damage. wind damage is also likely to mobile homes, roofs and outbuildings. severe thunderstorms will be near, fort sisseton state park and cattail lake around 705 pm cdt. eden, lake city, opitz lake and roy lake rec area around 710 pm cdt. hillhead, clear lake rec area and red iron housing around 715 pm cdt. veblen, veblen flats housing, piyas lake and buffalo lakes around 720 pm cdt. Long hollow housing around 725 pm cdt.
7/17/2015 6:50 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 7/17/2015 6:53 PM CDT At 649 pm cdt, severe thunderstorms were located along a line extending from near kidder to 6 miles northeast of langford to near pierpont, moving east at 50 mph (radar indicated). Hazards include 70 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect considerable tree damage. wind damage is also likely to mobile homes, roofs and outbuildings. These severe thunderstorms will remain over mainly rural areas of northeastern brown, northwestern day and western marshall counties.
7/17/2015 6:24 PM CDT Radar Image for Severe Thunderstorms near Pierpont, SD at 7/17/2015 6:30 PM CDT At 624 pm cdt, a severe thunderstorm was located near columbia, or 15 miles north of groton, moving east at 35 mph (emergency management). Hazards include 70 mph wind gusts and half dollar size hail. Hail damage to vehicles is expected. expect considerable tree damage. wind damage is also likely to mobile homes, roofs and outbuildings. this severe thunderstorm will be near, claremont around 640 pm cdt. amherst around 650 pm cdt. Langford around 655 pm cdt.
5/10/2015 4:03 PM CDT At 402 pm cdt, a severe thunderstorm was located over antelope lake, or near webster, moving north at 45 mph (trained weather spotters. at 4 pm cdt...half dollar sized hail was reported approximately 7 miles southeast of webster). Hazards include half dollar size hail. Damage to vehicles is expected. this severe storm will be near, webster, minnewasta lake and waubay lake around 410 pm cdt. roslyn and grenville around 420 pm cdt. 1. 25in.
5/10/2015 4:00 PM CDT At 359 pm cdt, a severe thunderstorm was located over antelope lake, or near webster, moving north at 45 mph (radar indicated). Hazards include ping pong ball size hail. People and animals outdoors will be injured. expect damage to roofs, siding, windows and vehicles. this severe storm will be near, rush lake around 405 pm cdt. webster, minnewasta lake and waubay lake around 410 pm cdt. roslyn and grenville around 420 pm cdt. 1. 50in.
5/10/2015 3:44 PM CDT At 343 pm cdt, a severe thunderstorm was located over grass lake, or 16 miles south of webster, moving north at 45 mph (radar indicated). Hazards include ping pong ball size hail. People and animals outdoors will be injured. expect damage to roofs, siding, windows and vehicles. this severe thunderstorm will be near, antelope lake around 400 pm cdt. webster and rush lake around 405 pm cdt. minnewasta lake and waubay lake around 410 pm cdt. roslyn and grenville around 420 pm cdt. 1. 50in.
5/10/2015 3:44 PM CDT At 344 pm cdt, a severe thunderstorm was located over grass lake, or 16 miles south of webster, moving north at 45 mph (radar indicated). Hazards include ping pong ball size hail. People and animals outdoors will be injured. expect damage to roofs, siding, windows and vehicles. this severe thunderstorm will be near, antelope lake around 400 pm cdt. rush lake around 405 pm cdt. webster, minnewasta lake and waubay lake around 410 pm cdt. roslyn and grenville around 420 pm cdt. 1. 50in.
1/1/0001 12:00 AM Large branch from mature tree in day county SD, 2.3 miles SW of Pierpont, SD
1/1/0001 12:00 AM 3 power poles snapped. roof off of house and bar. winds estimated at 70 to 80 mp in day county SD, 0.4 miles SSW of Pierpont, SD