342
WWUS63 KDMX 191913
WCNDMX

WATCH COUNTY NOTIFICATION FOR WATCH 677
NATIONAL WEATHER SERVICE DES MOINES IA
213 PM CDT THU SEP 19 2024

IAC033-063-081-109-147-189-195-200300-
/O.NEW.KDMX.SV.A.0677.240919T1913Z-240920T0300Z/

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
677 IN EFFECT UNTIL 10 PM CDT THIS EVENING FOR THE FOLLOWING
AREAS

IN IOWA THIS WATCH INCLUDES 7 COUNTIES

IN NORTH CENTRAL IOWA

CERRO GORDO           HANCOCK               KOSSUTH
WINNEBAGO             WORTH

IN NORTHWEST IOWA

EMMET                 PALO ALTO

THIS INCLUDES THE CITIES OF ALGONA, BRITT, CLEAR LAKE,
EMMETSBURG, ESTHERVILLE, FOREST CITY, GARNER, KANAWHA,
LAKE MILLS, MANLY, MASON CITY, AND NORTHWOOD.

* PRIMARY THREATS INCLUDE...

 SCATTERED LARGE HAIL LIKELY WITH ISOLATED VERY LARGE HAIL EVENTS
   TO 2.5 INCHES IN DIAMETER POSSIBLE.
 SCATTERED DAMAGING WIND GUSTS TO 70 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       :  10%
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              :  60%
PROB OF 1 OR MORE HAIL EVENTS >= 2 INCHES          :  50%
PROB OF 6 OR MORE COMBINED SEVERE HAIL/WIND EVENTS :  80%
MEAN STORM MOTION /MPH/                            :  NE 35

$$