WWUS63 KDMX 180411
WCNDMX

WATCH COUNTY NOTIFICATION FOR WATCHES 216/218/219
NATIONAL WEATHER SERVICE DES MOINES IA
1111 PM CDT SUN MAY 17 2026

IAC007-051-179-180900-
/O.NEW.KDMX.SV.A.0219.260518T0411Z-260518T0900Z/

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
219 IN EFFECT UNTIL 4 AM CDT MONDAY FOR THE FOLLOWING AREAS

IN IOWA THIS WATCH INCLUDES 3 COUNTIES

IN SOUTH CENTRAL IOWA

APPANOOSE             

IN SOUTHEAST IOWA

DAVIS                 WAPELLO               

THIS INCLUDES THE CITIES OF BLOOMFIELD, CENTERVILLE, AND OTTUMWA.

* PRIMARY THREATS INCLUDE...

 SCATTERED DAMAGING WIND GUSTS TO 65 MPH 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              :  40%
PROB OF 1 OR MORE WIND EVENTS >= 75 MPH            :  20%
PROB OF 10 OR MORE SEVERE HAIL EVENTS              :  10%
PROB OF 1 OR MORE HAIL EVENTS >= 2 INCHES          :  10%
PROB OF 6 OR MORE COMBINED SEVERE HAIL/WIND EVENTS :  60%
MEAN STORM MOTION /MPH/                            :  E 45

$$

IAC013-039-053-075-099-117-121-123-125-127-135-153-157-159-171-
173-175-181-185-180800-
/O.CON.KDMX.TO.A.0218.000000T0000Z-260518T0800Z/

TORNADO WATCH 218 REMAINS VALID UNTIL 3 AM CDT MONDAY FOR THE
FOLLOWING AREAS

IN IOWA THIS WATCH INCLUDES 19 COUNTIES

IN CENTRAL IOWA

GRUNDY                JASPER                MARSHALL             
POLK                  POWESHIEK             TAMA                 

IN NORTHEAST IOWA

BLACK HAWK            

IN SOUTH CENTRAL IOWA

CLARKE                DECATUR               LUCAS                
MADISON               MAHASKA               MARION               
MONROE                RINGGOLD              UNION                
WARREN                WAYNE                 

IN SOUTHWEST IOWA

TAYLOR                

THIS INCLUDES THE CITIES OF ALBIA, ALLERTON, BEDFORD, CARLISLE, 
CEDAR FALLS, CHARITON, CONRAD, CORYDON, CRESTON, DES MOINES, 
DIKE, DYSART, EARLHAM, GLADBROOK, GRINNELL, GRUNDY CENTER, 
HUMESTON, INDIANOLA, KNOXVILLE, LAMONI, LENOX, LEON, 
MARSHALLTOWN, MOUNT AYR, NEW MARKET, NEWTON, NORWALK, OSCEOLA, 
OSKALOOSA, PELLA, REINBECK, SEYMOUR, TAMA, TOLEDO, TRAER, 
WATERLOO, WELLSBURG, AND WINTERSET.

* 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.

$$

IAC017-023-180600-
/O.CON.KDMX.TO.A.0216.000000T0000Z-260518T0600Z/

TORNADO WATCH 216 REMAINS VALID UNTIL 1 AM CDT MONDAY FOR THE
FOLLOWING AREAS

IN IOWA THIS WATCH INCLUDES 2 COUNTIES

IN NORTH CENTRAL IOWA

BUTLER                

IN NORTHEAST IOWA

BREMER                

THIS INCLUDES THE CITIES OF ALLISON, APLINGTON, CLARKSVILLE, 
DUMONT, GREENE, PARKERSBURG, SHELL ROCK, AND WAVERLY.

* PRIMARY THREATS INCLUDE...

 A FEW TORNADOES AND A COUPLE INTENSE TORNADOES POSSIBLE.
 WIDESPREAD DAMAGING WINDS AND ISOLATED SIGNIFICANT GUSTS TO 75
   MPH LIKELY.
 SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2
   INCHES IN DIAMETER POSSIBLE.

$$