Hazardous Weather Outlook
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
308 FLUS43 KDMX 181945 HWODMX Hazardous Weather Outlook National Weather Service Des Moines IA 245 PM CDT Fri Sep 18 2026 IAZ004>006-015-016-023>026-033>038-044>050-057>062-070>075- 081>086-092>097-191945- Emmet-Kossuth-Winnebago-Palo Alto-Hancock-Pocahontas-Humboldt- Wright-Franklin-Sac-Calhoun-Webster-Hamilton-Hardin-Grundy- Crawford-Carroll-Greene-Boone-Story-Marshall-Tama-Audubon-Guthrie- Dallas-Polk-Jasper-Poweshiek-Cass-Adair-Madison-Warren-Marion- Mahaska-Adams-Union-Clarke-Lucas-Monroe-Wapello-Taylor-Ringgold- Decatur-Wayne-Appanoose-Davis- 245 PM CDT Fri Sep 18 2026 This Hazardous Weather Outlook is for portions of central Iowa. .DAY ONE...This afternoon and tonight Thunderstorms are expected this evening with a few severe storms possible at times. Later in the evening and overnight the threat transitions over to heavy rain. Heaviest rain is expected in far northern Iowa and ponding or flash flooding is possible. .DAYS TWO THROUGH SEVEN...Saturday through Thursday Chances for thunderstorms with gusty winds and heavy rainfall continue this weekend. Flash flooding and river flooding will also be concerns. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. && NWS Des Moines will discontinue the Hazardous Weather Outlook product (HWO) on September 30th, 2026. Weather hazards and outlooks will continue to be provided through the standard forecast channels, including weather briefing packets, forecast discussions, weather story graphics, the experimental graphical hazardous weather outlook, and updated hazard messaging. All local products and visual tools are accessible directly at weather.gov/desmoines. $$ IAZ007-017-027-028-039-191945- Worth-Cerro Gordo-Butler-Bremer-Black Hawk- 245 PM CDT Fri Sep 18 2026 This Hazardous Weather Outlook is for portions of central Iowa. .DAY ONE...This afternoon and tonight A Flood Watch is in effect for the area. Please refer to the National Weather Service website at weather.gov/desmoines for further details. Thunderstorms are expected this evening with a few severe storms possible at times. Later in the evening and overnight the threat transitions over to heavy rain. Heaviest rain is expected in far northern Iowa and ponding or flash flooding is possible. .DAYS TWO THROUGH SEVEN...Saturday through Thursday A Flood Watch is in effect for the area Saturday morning. Please refer to the National Weather Service website at weather.gov/desmoines for further details. Chances for thunderstorms with gusty winds and heavy rainfall continue this weekend. Flash flooding and river flooding will also be concerns. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. && NWS Des Moines will discontinue the Hazardous Weather Outlook product (HWO) on September 30th, 2026. Weather hazards and outlooks will continue to be provided through the standard forecast channels, including weather briefing packets, forecast discussions, weather story graphics, the experimental graphical hazardous weather outlook, and updated hazard messaging. All local products and visual tools are accessible directly at weather.gov/desmoines. $$