Full Notification

THE NATIONAL WEATHER SERVICE HAS ISSUED TORNADO WATCH 122 UNTIL 9 PM CDT THIS EVENING WHICH REPLACES A PORTION OF SEVERE THUNDERSTORM WATCH 119. THE NEW WATCH IS VALID FOR THE FOLLOWING AREAS IN IOWA THE NEW WATCH INCLUDES 5 COUNTIES IN CENTRAL IOWA JASPER MARSHALL POLK POWESHIEK TAMA THIS INCLUDES THE CITIES OF DES MOINES, DYSART, GLADBROOK, GRINNELL, MARSHALLTOWN, NEWTON, TAMA, TOLEDO, AND TRAER.

* PRIMARY THREATS INCLUDE... A COUPLE TORNADOES POSSIBLE. SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2.5 INCHES IN DIAMETER POSSIBLE. SCATTERED DAMAGING WIND GUSTS TO 70 MPH 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 : 50% PROB OF 1 OR MORE WIND EVENTS >= 75 MPH : 20% PROB OF 10 OR MORE SEVERE HAIL EVENTS : 50% PROB OF 1 OR MORE HAIL EVENTS >= 2 INCHES : 40% PROB OF 6 OR MORE COMBINED SEVERE HAIL/WIND EVENTS : 80% MEAN STORM MOTION /MPH/ : E 40

* AFFECTED AREAS: JASPER, IA ... MARSHALL, IA ... POLK, IA ... POWESHIEK, IA ... TAMA, IA