Iowa Tornado Watch - Extreme | Effective 06/11/2026 11:57

THE NATIONAL WEATHER SERVICE HAS ISSUED TORNADO WATCH 313 UNTIL 9 PM CDT THIS EVENING WHICH REPLACES A PORTION OF TORNADO WATCH 311. THE NEW WATCH IS VALID FOR THE FOLLOWING AREAS IN IOWA THE NEW WATCH INCLUDES 8 COUNTIES IN SOUTH CENTRAL IOWA APPANOOSE LUCAS MAHASKA MARION MONROE WAYNE IN SOUTHEAST IOWA DAVIS WAPELLO THIS INCLUDES THE CITIES OF ALBIA, ALLERTON, BLOOMFIELD, CENTERVILLE, CHARITON, CORYDON, HUMESTON, KNOXVILLE, OSKALOOSA, OTTUMWA, PELLA, AND SEYMOUR. * PRIMARY THREATS INCLUDE... SEVERAL TORNADOES AND A COUPLE INTENSE TORNADOES LIKELY. WIDESPREAD DAMAGING WINDS AND ISOLATED SIGNIFICANT GUSTS TO 80 MPH LIKELY. SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2.5 INCHES IN DIAMETER POSSIBLE. PROBABILITY TABLE: PROB OF 2 OR MORE TORNADOES : 80% PROB OF 1 OR MORE STRONG /EF2-EF5/ TORNADOES : 60% PROB OF 10 OR MORE SEVERE WIND EVENTS : 90% PROB OF 1 OR MORE WIND EVENTS >= 75 MPH : 70% PROB OF 10 OR MORE SEVERE HAIL EVENTS : 50% PROB OF 1 OR MORE HAIL EVENTS >= 2 INCHES : 50% PROB OF 6 OR MORE COMBINED SEVERE HAIL/WIND EVENTS : >95% MEAN STORM MOTION /MPH/ : E 40