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URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 279

NWS STORM PREDICTION CENTER NORMAN OK

110 PM CDT WED JUN 5 2013



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  EXTREME SOUTHEAST ARKANSAS

  NORTHEAST LOUISIANA

  SOUTHERN AND CENTRAL MISSISSIPPI



* EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 110 PM

  UNTIL 700 PM CDT.



* PRIMARY THREATS INCLUDE...

  SEVERAL DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

  A FEW LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 100

STATUTE MILES EITHER SIDE OF A LINE FROM 5 MILES SOUTH SOUTHEAST

OF JACKSON MISSISSIPPI TO 25 MILES WEST NORTHWEST OF GREENWOOD

MISSISSIPPI.  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.



&&



DISCUSSION...MULTICELLULAR STORMS HAVE DEVELOPED ON THE EDGE OF

STRONGER CAPPING ACROSS THE MS DELTA REGION INTO ERN AR AND NRN MS

THIS AFTERNOON. VERY UNSTABLE AIRMASS TO THE SOUTH OF ONGOING

DEVELOPMENT SHOULD CONTINUE TO FUEL ROBUST STORM UPDRAFTS CAPABLE OF

PRODUCING DAMAGING DOWNBURST WINDS. SOME UPPER LEVEL SUPPORT MAY

EDGE INTO THE AREA AS A SHORTWAVE TROUGH/MCV SPREADS EAST ACROSS AR

THROUGH THE AFTERNOON. THIS DISTURBANCE WILL ALSO BRING SOMEWHAT

STRONGER MID LEVEL FLOW THAT COULD AID IN THE DEVELOPMENT OF A

FORWARD PROPAGATING MCS WITH WIND DAMAGE POTENTIAL INCREASING IN

AREAL EXTENT.



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 550. MEAN STORM

MOTION VECTOR 30020.





...CARBIN

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