⚠️ Severe Thunderstorm Watch – Cerro Gordo, IA; Emmet, IA; Hancock, IA; Humboldt, IA; Kossuth, IA; Palo Alto, IA; Pocahontas, IA; Winnebago, IA; Worth, IA – Tuesday, September 1, 2026

Severe Thunderstorm Watch issued September 1 at 9:56PM CDT until September 2 at 5:00AM CDT by NWS Des Moines IA

Details

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
640 IN EFFECT UNTIL 5 AM CDT WEDNESDAY FOR THE FOLLOWING AREAS

IN IOWA THIS WATCH INCLUDES 9 COUNTIES

IN NORTH CENTRAL IOWA

CERRO GORDO HANCOCK HUMBOLDT
KOSSUTH WINNEBAGO WORTH

IN NORTHWEST IOWA

EMMET PALO ALTO POCAHONTAS

THIS INCLUDES THE CITIES OF ALGONA, BRITT, CLEAR LAKE,
EMMETSBURG, ESTHERVILLE, FONDA, FOREST CITY, GARNER,
GILMORE CITY, HUMBOLDT, KANAWHA, LAKE MILLS, LAURENS, MANLY,
MASON CITY, NORTHWOOD, POCAHONTAS, AND ROLFE.

* PRIMARY THREATS INCLUDE…

SCATTERED DAMAGING WINDS LIKELY WITH ISOLATED SIGNIFICANT GUSTS
TO 75 MPH POSSIBLE.
SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2
INCHES IN DIAMETER POSSIBLE.
A TORNADO OR TWO POSSIBLE.

PROBABILITY TABLE:
PROB OF 2 OR MORE TORNADOES : 20%
PROB OF 1 OR MORE STRONG /EF2-EF5/ TORNADOES : <02%
PROB OF 10 OR MORE SEVERE WIND EVENTS : 60%
PROB OF 1 OR MORE WIND EVENTS >= 75 MPH : 40%
PROB OF 10 OR MORE SEVERE HAIL EVENTS : 40%
PROB OF 1 OR MORE HAIL EVENTS >= 2 INCHES : 30%
PROB OF 6 OR MORE COMBINED SEVERE HAIL/WIND EVENTS : 90%
MEAN STORM MOTION /MPH/ : NE 40

This alert was automatically posted by SkyGuard, MWSC’s severe weather alerting system. Source: National Weather Service.