If outdoors, consider seeking shelter inside a building.
At 241 PM MDT, Doppler radar was tracking a strong thunderstorm over
northeastern Ellsworth Air Force Base, or 10 miles northeast of Rapid
City, moving northeast at 15 mph.
HAZARD...Half inch hail.
SOURCE...Radar indicated.
IMPACT...Minor hail damage to vegetation is possible.
This strong thunderstorm will be near...
Northeastern Ellsworth Air Force Base around 245 PM MDT.
This includes Interstate 90 in South Dakota between Mile Markers 59
and 68.