

554 

WWUS20 KWNS 120045

SEL5

SPC WW 120045

IAZ000-120800-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 145

NWS STORM PREDICTION CENTER NORMAN OK

745 PM CDT SUN MAY 11 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* TORNADO WATCH FOR PORTIONS OF

  CENTRAL AND SOUTHERN IOWA



* EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 745 PM

  UNTIL 300 AM CDT.



* PRIMARY THREATS INCLUDE...

  A FEW TORNADOES POSSIBLE

  SCATTERED LARGE HAIL LIKELY WITH ISOLATED VERY LARGE HAIL EVENTS

    TO 2 INCHES IN DIAMETER POSSIBLE

  SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 75 STATUTE

MILES EAST AND WEST OF A LINE FROM 10 MILES EAST OF LAMONI IOWA

TO 35 MILES NORTHEAST OF FORT DODGE IOWA.  FOR A COMPLETE

DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE

(WOUS64 KWNS WOU5).



PRECAUTIONARY/PREPAREDNESS ACTIONS...



REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR

TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH

AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR

THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS

AND POSSIBLE WARNINGS.



&&



OTHER WATCH INFORMATION...CONTINUE...WW 142...WW 143...WW 144...



DISCUSSION...ORGANIZED CLUSTER OF SEVERE THUNDERSTORMS...WITH

EMBEDDED SUPERCELLS...WILL PROGRESS ACROSS WESTERN INTO

CENTRAL/SOUTHERN IA OVER THE NEXT FEW HOURS.  LARGE HAIL AND

DAMAGING WINDS ARE LIKELY.  ADDITIONALLY...TORNADOES REMAIN POSSIBLE

WITH SUPERCELL STRUCTURES.



AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL

SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

550. MEAN STORM MOTION VECTOR 24035.





...DARROW

