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FLUS43 KDMX 030915
HWODMX
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DES MOINES IA
415 AM CDT THU SEP 3 2026
IAZ004>007-015>017-023>028-033>039-044>050-041500-
EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO-
POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN-
WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE-
BOONE-STORY-MARSHALL-TAMA-
415 AM CDT THU SEP 3 2026
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA.
DAY ONE
TODAY AND TONIGHT
HEAT AND HUMIDITY WILL PERSIST TODAY, ESPECIALLY TOWARD CENTRAL
IOWA WHERE THE HEAT INDEX WILL PEAK NEAR 100 DEGREES THIS
AFTERNOON AND EVENING.
WIDELY SCATTERED THUNDERSTORMS WILL OCCUR EARLY THIS MORNING. THE
PROBABILITY OF SEVERE WEATHER IS LOW, BUT A FEW STORMS MAY PRODUCE
BRIEF GUSTY WINDS.
THERE IS A CHANCE OF THUNDERSTORMS TONIGHT. A FEW STRONG STORMS
MAY PRODUCE GUSTY WINDS AND HAIL.
DAYS TWO THROUGH SEVEN
FRIDAY THROUGH WEDNESDAY
LATE SEASON HEAT AND HUMIDITY WILL GENERALLY PERSIST FROM
FRIDAY INTO EARLY NEXT WEEK, BUT WITH SOME RELATIVE BREAKS AT
TIMES.
ADDITIONAL THUNDERSTORM CHANCES ARE FORECAST AT TIMES FROM
SATURDAY NIGHT INTO EARLY NEXT WEEK. ANY SEVERE WEATHER POTENTIAL
DURING THAT TIME WILL BE ASSESSED IN THE COMING DAYS.
SPOTTER INFORMATION STATEMENT
SPOTTER ACTIVATION IS NOT ANTICIPATED.
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.
IAZ057>062-070>075-081>086-092>097-041500-
AUDUBON-GUTHRIE-DALLAS-POLK-JASPER-POWESHIEK-CASS-ADAIR-MADISON-
WARREN-MARION-MAHASKA-ADAMS-UNION-CLARKE-LUCAS-MONROE-WAPELLO-
TAYLOR-RINGGOLD-DECATUR-WAYNE-APPANOOSE-DAVIS-
415 AM CDT THU SEP 3 2026
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA.
DAY ONE
TODAY AND TONIGHT
A HEAT ADVISORY IS IN EFFECT. PLEASE REFER TO THE NATIONAL
WEATHER SERVICE WEBSITE AT WEATHER.GOV/DESMOINES FOR FURTHER
DETAILS.
ISOLATED THUNDERSTORMS MAY OCCUR EARLY THIS MORNING. THE
PROBABILITY OF SEVERE WEATHER IS LOW.
DAYS TWO THROUGH SEVEN
FRIDAY THROUGH WEDNESDAY
A HEAT ADVISORY IS IN EFFECT THROUGH FRIDAY AFTERNOON. PLEASE
REFER TO THE NATIONAL WEATHER SERVICE WEBSITE AT
WEATHER.GOV/DESMOINES FOR FURTHER DETAILS.
ADDITIONAL THUNDERSTORM CHANCES ARE FORECAST AT TIMES FROM
SATURDAY NIGHT INTO EARLY NEXT WEEK. ANY SEVERE WEATHER POTENTIAL
DURING THAT TIME WILL BE ASSESSED IN THE COMING DAYS.
SPOTTER INFORMATION STATEMENT
SPOTTER ACTIVATION IS NOT ANTICIPATED.
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.
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