

350 

WWUS20 KWNS 260350

SEL9

SPC WW 260350

IAZ000-MOZ000-261000-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 369

NWS STORM PREDICTION CENTER NORMAN OK

1040 PM CDT TUE JUN 25 2013



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  CENTRAL AND SOUTHERN IOWA

  NORTH CENTRAL MISSOURI



* EFFECTIVE THIS TUESDAY NIGHT AND WEDNESDAY MORNING FROM 1040 PM

  UNTIL 500 AM CDT.



* PRIMARY THREATS INCLUDE...

  NUMEROUS LARGE HAIL EVENTS LIKELY WITH A FEW VERY LARGE HAIL

    EVENTS TO 2 INCHES IN DIAMETER POSSIBLE

  SEVERAL DAMAGING WIND GUSTS WITH A FEW SIGNIFICANT GUSTS TO 75

    MPH POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 75

STATUTE MILES EAST AND WEST OF A LINE FROM 40 MILES EAST

NORTHEAST OF FORT DODGE IOWA TO 10 MILES SOUTHEAST OF CHILLICOTHE

MISSOURI.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).



PRECAUTIONARY/PREPAREDNESS ACTIONS...



REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE

FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY

DO PRODUCE TORNADOES.



&&



OTHER WATCH INFORMATION...CONTINUE...WW 362...WW 364...WW

365...WW 366...WW 367...WW 368...



DISCUSSION...TSTMS EXPECTED TO FORM LATER TNGT/EARLY WED IN ZONE OF

STRENGTHENING WAA/MOISTURE TRANSPORT IN EXIT REGION OF 40+ SWLY LLJ

AND BENEATH AMPLIFYING UPR IMPULSE. INITIAL STORMS SHOULD BE

SLIGHTLY ELEVATED...AND WILL POSE A RISK FOR MAINLY LARGE HAIL AND

POSSIBLY A TORNADO GIVEN UPSTREAM THERMODYNAMIC ENVIRONMENT

FEATURING DEEP EML ATOP MOISTURE-RICH PBL /PER TOP AND OAX 00Z

RAOBS/. SOME DEGREE OF MCS DEVELOPMENT DOES APPEAR LIKELY WITH

TIME...HOWEVER...ESPECIALLY IN ERN IA AND PERHAPS NRN MO. THIS

ACTIVITY COULD POSE AN INCREASING RISK FOR BOWING SEGMENTS/DMGG

WIND.



AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT

TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM

MOTION VECTOR 29030.





...CORFIDI

