Iowa Tornado Watch | Effective 05/17/2026 22:18

Headline: 
Tornado Watch issued May 18 at 12:18AM CDT until May 18 at 3:00AM CDT by NWS Des Moines IA
Event: 
Tornado Watch
Urgency: 
Future
Effective: 
May 17, 2026 - 10:18pm
Expires: 
May 18, 2026 - 1:00am
Description: 
TORNADO WATCH 218 REMAINS VALID UNTIL 3 AM CDT EARLY THIS MORNING FOR THE FOLLOWING AREAS IN IOWA THIS WATCH INCLUDES 7 COUNTIES IN CENTRAL IOWA POWESHIEK IN SOUTH CENTRAL IOWA DECATUR LUCAS MAHASKA MARION MONROE WAYNE THIS INCLUDES THE CITIES OF ALBIA, ALLERTON, CHARITON, CORYDON, GRINNELL, HUMESTON, KNOXVILLE, LAMONI, LEON, OSKALOOSA, PELLA, AND SEYMOUR. * PRIMARY THREATS INCLUDE... A COUPLE TORNADOES POSSIBLE. SCATTERED DAMAGING WINDS AND ISOLATED SIGNIFICANT GUSTS TO 80 MPH LIKELY. ISOLATED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE.
Area Description: 
Decatur, IA; Lucas, IA; Mahaska, IA; Marion, IA; Monroe, IA; Poweshiek, IA; Wayne, IA
Forcast Office: 
NWS Des Moines IA
Sender: 
w-nws.webmaster@noaa.gov