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165 

WWUS20 KWNS 180256

SEL9

SPC WW 180256

ILZ000-KSZ000-MOZ000-181000-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 119

NWS STORM PREDICTION CENTER NORMAN OK

955 PM CDT WED APR 17 2013



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* TORNADO WATCH FOR PORTIONS OF

  A SMALL PART OF WEST CENTRAL ILLINOIS

  EXTREME SOUTHEAST KANSAS

  SOUTHWEST...CENTRAL...AND NORTHEAST MISSOURI



* EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 955 PM

  UNTIL 500 AM CDT.



* PRIMARY THREATS INCLUDE...

  SEVERAL TORNADOES POSSIBLE

  SEVERAL DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

  A FEW LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 60 STATUTE

MILES EAST AND WEST OF A LINE FROM 90 MILES NORTHEAST OF COLUMBIA

MISSOURI TO 15 MILES EAST SOUTHEAST OF GROVE OKLAHOMA.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU9).



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...THIS TORNADO WATCH REPLACES TORNADO

WATCH NUMBER 114. WATCH NUMBER 114 WILL NOT BE IN EFFECT AFTER

955 PM CDT. CONTINUE...WW 116...WW 117...WW 118...



DISCUSSION...CONVECTION ALONG COLD FRONT IS EXPECTED TO CONSOLIDATE

INTO A MORE SOLID SQUALL LINE OVERNIGHT AS A WEAK SURFACE WAVE

GRADUALLY FORMS ACROSS CENTRAL MO.  THOUGH THE BOUNDARY LAYER WILL

STABILIZE GRADUALLY OVERNIGHT...THE PRESENCE OF LOW 60S DEW POINTS

WILL MAINTAIN SURFACE-BASED STORMS.  MEANWHILE...THE LLJ WILL

CONTINUE TO STRENGTHEN...RESULTING IN STRONG LOW-LEVEL SHEAR AND AN

ATTENDANT RISK FOR EMBEDDED CIRCULATIONS WITH A COUPLE OF TORNADOES.

 OTHERWISE...DAMAGING WINDS AND ISOLATED/MARGINALLY SEVERE HAIL WILL

BE POSSIBLE WITH THE STRONGER STORMS OVERNIGHT.



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

SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE

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

500. MEAN STORM MOTION VECTOR 22040.





...THOMPSON

