Headline:
Flash Flood Warning issued July 3 at 2:58AM CDT until July 3 at 5:15AM CDT by NWS Des Moines IA
Event:
Flash Flood Warning
Urgency:
Immediate
Effective:
July 3, 2026 - 12:58am
Expires:
July 3, 2026 - 3:15am
Description:
At 258 AM CDT, the Iowa Department of Transportation reported 6 to
12 inches of water on I-35 northbound just north of Ankeny. Parts of
northern Polk County have received between 4 and 8 inches of
rainfall per rain gage observations and radar estimates. For
northern Jasper County, rainfall amounts of 2 to 4 inches are more
common. Additional rainfall amounts of 1 to 2 inches are possible in
the warned area as storms continue to move into the area this
morning. Flash flooding is ongoing or expected to begin shortly.
HAZARD...Life threatening flash flooding. Thunderstorms producing
flash flooding.
SOURCE...Department of Transportation reported.
IMPACT...Life threatening flash flooding of creeks and streams,
urban areas, highways, streets and underpasses.
Some locations that will experience flash flooding include...
Ankeny, Johnston, Newton, Bondurant, Polk City, Colfax, Granger,
Baxter, Iowa Speedway, Saylorville Lake, Big Creek Lake, Elkhart,
Alleman, Sheldahl, Mingo, Lambs Grove, Valeria, Newton Municipal
Airport and Big Creek State Park.
Expect significant flash flooding in the Fourmile Creek Basin.
Instruction:
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
For the latest stream observations and forecasts refer to
weather.gov/desmoines/water.
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Area Description:
Jasper, IA; Polk, IA
Forcast Office:
NWS Des Moines IA
Sender: