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898 

WWUS20 KWNS 040959

SEL7

SPC WW 040959

ILZ000-MOZ000-041600-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 217

NWS STORM PREDICTION CENTER NORMAN OK

500 AM CDT WED JUN 4 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  SOUTHWEST ILLINOIS

  EAST-CENTRAL AND SOUTHEAST MISSOURI



* EFFECTIVE THIS WEDNESDAY MORNING FROM 500 AM UNTIL 1100 AM CDT.



* PRIMARY THREATS INCLUDE...

  ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 50

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 25 MILES WEST OF

JEFFERSON CITY MISSOURI TO 25 MILES EAST SOUTHEAST OF SCOTT AFB

ILLINOIS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7).



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 214...



DISCUSSION...A WELL-ORGANIZED MESOSCALE CONVECTIVE SYSTEM...WITH

HISTORY OF ISOLATED WIND DAMAGE AND NEAR-SEVERE MEASURED WIND

GUSTS...WILL CONTINUE A FAST /50+ MPH/ EAST-SOUTHEASTWARD

PROGRESSION THROUGH THE EARLY/MID-MORNING HOURS. BOUTS OF LOCALIZED

WIND DAMAGE ARE EXPECTED TO REMAIN THE PRIMARY HAZARD ESPECIALLY

ACROSS EAST-CENTRAL MO AND POTENTIALLY PORTIONS OF SOUTHEAST

MO/SOUTHWEST IL.



AVIATION...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 28045.





...GUYER

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