⚠️ Severe Thunderstorm Watch – Clinton, IA; Dubuque, IA; Jackson, IA; Scott, IA; Bureau, IL; Carroll, IL; Henry, IL; Jo Daviess, IL; Mercer, IL; Putnam, IL; Rock Island, IL; Stephenson, IL; Whiteside, IL – Friday, August 21, 2026

Event	Severe Thunderstorm Watch
Severity	Severe
Urgency	Future
Certainty	Possible
Area	Clinton, IA; Dubuque, IA; Jackson, IA; Scott, IA; Bureau, IL; Carroll, IL; Henry, IL; Jo Daviess, IL; Mercer, IL; Putnam, IL; Rock Island, IL; Stephenson, IL; Whiteside, IL
Effective	8/21/2026, 2:58:00 PM CDT
Expires	8/21/2026, 10:00:00 PM CDT

Severe Thunderstorm Watch issued August 21 at 2:58PM CDT until August 21 at 10:00PM CDT by NWS Quad Cities IA IL

Details

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
610 IN EFFECT UNTIL 10 PM CDT THIS EVENING FOR THE FOLLOWING
AREAS

IN ILLINOIS THIS WATCH INCLUDES 9 COUNTIES

IN NORTH CENTRAL ILLINOIS

BUREAU PUTNAM

IN NORTHWEST ILLINOIS

CARROLL HENRY IL JO DAVIESS
MERCER ROCK ISLAND STEPHENSON
WHITESIDE

IN IOWA THIS WATCH INCLUDES 4 COUNTIES

IN EAST CENTRAL IOWA

CLINTON JACKSON SCOTT

IN NORTHEAST IOWA

DUBUQUE

THIS INCLUDES THE CITIES OF ALEDO, BETTENDORF, CLINTON,
CREDIT ISLAND, DAVENPORT, DUBUQUE, FREEPORT, GALENA, GENESEO,
HENNEPIN, MAQUOKETA, MOLINE, MOUNT CARROLL, PRINCETON,
ROCK ISLAND, AND STERLING.

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