12:41 AM EDT
Tuesday
Jul 21, 2026

Current Severe Weather Alerts in Iowa


There are currently 4 Weather Alerts in Iowaselect a different state


Flash Flood Warning issued July 20 at 9:07PM CDT until July 21 at 3:15AM CDT by NWS Des Moines IA

Event: Flash Flood Warning
Message Type: Alert
Urgency: Immediate
Severity: Severe
Certainty: Likely
Affected Area: Dallas, IA; Polk, IA

Wheather Alert Summary: Ffwdmx the national weather service in des moines has issued a * flash flood warning for... northeastern dallas county in central iowa... western polk county in central iowa... * until 315 am cdt tuesday. * at 907 pm cdt, doppler radar indicated thunderstorms producing heavy rain across the warned area. between 2 and 4 inches of rain have fallen. additional rainfall amounts of 1 to 2 inches are possible in the warned area. flash flooding is ongoing or expected to begin shortly. hazard...Flash flooding caused by thunderstorms. source...Radar. impact...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * some locations that will experience flash flooding include... des moines, west des moines, ankeny, urbandale, johnston, clive, altoona, waukee, norwalk, pleasant hill, grimes, perry, windsor heights, carlisle, polk city, saylorville, dallas center, granger, woodward and saylorville lake. expect flash flooding in the fourmile creek basin.

Official National Weather Service Weather Alert Statement

Flood Warning issued July 20 at 9:02PM CDT until July 21 at 2:00PM CDT by NWS Des Moines IA

Event: Flood Warning
Message Type: Alert
Urgency: Expected
Severity: Severe
Certainty: Likely
Affected Area: Polk, IA

Wheather Alert Summary: ...The national weather service in des moines ia has issued a flood warning for the following rivers in iowa... fourmile creek at des moines easton blvd affecting polk county. * what...Moderate flooding is forecast. * where...The fourmile creek at des moines easton blvd, or from below interstate 80 to the des moines river. * when...From late tonight to early tomorrow afternoon. * impacts...At 14.0 feet, widespread flooding occurs along the reaches of the creek primarily upstream from easton blvd near the hubbell overpass. water affects lowland areas of the community center near easton blvd. * additional details... - at 8:45 pm cdt monday the stage was 5.3 feet. - forecast...The river is expected to rise above flood stage just after midnight tonight to a crest of 14.1 feet late tonight. it will then fall below flood stage tomorrow morning. - flood stage is 12.5 feet.

Official National Weather Service Weather Alert Statement

Flash Flood Warning issued July 20 at 8:18PM CDT until July 21 at 2:15AM CDT by NWS Des Moines IA

Event: Flash Flood Warning
Message Type: Alert
Urgency: Immediate
Severity: Severe
Certainty: Likely
Affected Area: Jasper, IA; Polk, IA

Wheather Alert Summary: Ffwdmx the national weather service in des moines has issued a * flash flood warning for... western jasper county in central iowa... southeastern polk county in central iowa... * until 215 am cdt. * at 818 pm cdt, doppler radar indicated thunderstorms producing heavy rain across the warned area. between 1 and 2 inches of rain have fallen. additional rainfall amounts of 1 to 3 inches are possible in the warned area. flash flooding is ongoing or expected to begin shortly. hazard...Flash flooding caused by thunderstorms. source...Radar. impact...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * some locations that will experience flash flooding include... des moines, newton, altoona, pleasant hill, carlisle, bondurant, colfax, monroe, prairie city, baxter, iowa speedway, prairie meadows, adventureland amusement park, runnells, lambs grove, prairie city krohn airport and newton municipal airport.

Official National Weather Service Weather Alert Statement

Flash Flood Warning issued July 20 at 7:35PM CDT until July 21 at 1:45AM CDT by NWS Des Moines IA

Event: Flash Flood Warning
Message Type: Alert
Urgency: Immediate
Severity: Severe
Certainty: Likely
Affected Area: Boone, IA; Jasper, IA; Marshall, IA; Polk, IA; Story, IA

Wheather Alert Summary: Ffwdmx the national weather service in des moines has issued a * flash flood warning for... southeastern boone county in central iowa... northwestern jasper county in central iowa... southwestern marshall county in central iowa... northern polk county in central iowa... southern story county in central iowa... * until 145 am cdt tuesday. * at 735 pm cdt, doppler radar indicated thunderstorms producing heavy rain across the warned area. between 2 and 3 inches of rain have fallen. additional rainfall amounts of 1 to 2 inches are possible in the warned area. flash flooding is ongoing or expected to begin shortly. hazard...Flash flooding caused by thunderstorms. source...Radar. impact...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * some locations that will experience flash flooding include... ames, ankeny, nevada, bondurant, huxley, mitchellville, colfax, slater, iowa state center, big creek lake, maxwell, cambridge, elkhart, collins, alleman, sheldahl, kelley, mingo, valeria and ames municipal airport.

Official National Weather Service Weather Alert Statement