Iowa Severe Severe Thunderstorm Warning | Effective 09/04/2026 12:40
At 239 PM CDT, a severe thunderstorm was located near Waukon, moving
east at 25 mph.
HAZARD...Ping pong ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...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...
Harpers Ferry around 300 PM CDT.
Other locations impacted by this severe thunderstorm include County