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THE NATIONAL WEATHER SERVICE HAS ISSUED TORNADO WATCH 497 IN EFFECT UNTIL 9 PM CDT THIS EVENING FOR THE FOLLOWING AREAS IN IOWA THIS WATCH INCLUDES 24 COUNTIES IN CENTRAL IOWA BOONE DALLAS JASPER MARSHALL POLK POWESHIEK STORY TAMA IN SOUTH CENTRAL IOWA APPANOOSE CLARKE DECATUR LUCAS MADISON MAHASKA MARION MONROE RINGGOLD UNION WARREN WAYNE IN SOUTHEAST IOWA DAVIS WAPELLO IN SOUTHWEST IOWA ADAIR IN WEST CENTRAL IOWA GUTHRIE THIS INCLUDES THE CITIES OF ADAIR, ADEL, ALBIA, ALLERTON, AMES, BAYARD, BLOOMFIELD, BOONE, CARLISLE, CASEY, CENTERVILLE, CHARITON, CORYDON, CRESTON, DES MOINES, DYSART, EARLHAM, FONTANELLE, GLADBROOK, GREENFIELD, GRINNELL, GUTHRIE CENTER, HUMESTON, INDIANOLA, KNOXVILLE, LAMONI, LEON, MARSHALLTOWN, MOUNT AYR, NEWTON, NORWALK, OSCEOLA, OSKALOOSA, OTTUMWA, PANORA, PELLA, PERRY, SEYMOUR, STUART, TAMA, TOLEDO, TRAER, WAUKEE, AND WINTERSET.

* PRIMARY THREATS INCLUDE... A COUPLE TORNADOES POSSIBLE. SCATTERED DAMAGING WIND GUSTS TO 70 MPH LIKELY. SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE. PROBABILITY TABLE: PROB OF 2 OR MORE TORNADOES : 40% PROB OF 1 OR MORE STRONG /EF2-EF5/ TORNADOES : 20% PROB OF 10 OR MORE SEVERE WIND EVENTS : 70% PROB OF 1 OR MORE WIND EVENTS >= 75 MPH : 20% 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/ : E 40

* AFFECTED AREAS: ADAIR, IA ... APPANOOSE, IA ... BOONE, IA ... CLARKE, IA ... DALLAS, IA ... DAVIS, IA ... DECATUR, IA ... GUTHRIE, IA ... JASPER, IA ... LUCAS, IA ... MADISON, IA ... MAHASKA, IA ... MARION, IA ... MARSHALL, IA ... MONROE, IA ... POLK, IA ... POWESHIEK, IA ... RINGGOLD, IA ... STORY, IA ... TAMA, IA ... UNION, IA ... WAPELLO, IA ... WARREN, IA ... WAYNE, IA