At 413 pm cdt, a severe thunderstorm was located 5 miles north of spiro, moving east 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 in or near the path include, fort smith, van buren, alma, barling, muldrow, roland, lavaca, spiro, arkoma, mulberry, dyer, moffett, fort smith regional airport, kibler, central city, concord, cowlington, shibley, rye hill, ursula, this includes the following highways, interstate 40 in arkansas between mile markers 4 and 18. interstate 40 in oklahoma between mile markers 320 and 325. interstate 540 between mile markers 1 and 14. interstate 49 near mile marker 22. thunderstorm damage threat, considerable hail threat, radar indicated max hail size, 1. 75 in wind threat, radar indicated max wind gust, 60 mph.