Headline:
Severe Thunderstorm Warning issued June 11 at 6:21AM CDT until June 11 at 6:30AM CDT by NWS Omaha/Valley NE
Event:
Severe Thunderstorm Warning
Urgency:
Immediate
Effective:
June 11, 2026 - 4:21am
Expires:
June 11, 2026 - 4:30am
Description:
At 620 AM CDT, severe thunderstorms were located along a line
extending from 6 miles east of Walnut to 7 miles east of Griswold,
moving east at 55 mph.
HAZARD...70 mph wind gusts and quarter size hail.
SOURCE...At 6:15 AM, a personal weather station measured a 59 mph
gust near Oakland, Iowa.
IMPACT...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
eastern Pottawattamie and southeastern Shelby Counties, including the
following locations... Prairie Rose State Park, Nishna Bend
Recreation Area, Elk Horn Creek Recreation Area, and Farm Creek
Public Wildlife Area.
This includes Interstate 80 in Iowa between mile markers 40 and 48.
Instruction:
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
Area Description:
Pottawattamie, IA; Shelby, IA
Forcast Office:
NWS Omaha/Valley NE
Sender:
w-nws.webmaster@noaa.gov