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272 

WWUS20 KWNS 012302

SEL2

SPC WW 012302

MSZ000-020500-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 22

NWS STORM PREDICTION CENTER NORMAN OK

500 PM CST WED FEB 1 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       NORTHERN MISSISSIPPI



EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 500 PM UNTIL

1100 PM CST.



HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70

MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 50

STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES SOUTH

SOUTHEAST OF GREENWOOD MISSISSIPPI TO 50 MILES NORTH OF TUPELO

MISSISSIPPI.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).



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 20...WW 21...



DISCUSSION...BOWING MCS WITH A WELL-ORGANIZED COLD POOL IS EXPECTED

TO CONTINUE EWD ACROSS NRN MS AT AROUND 40 KT.  UPSTREAM VAD DATA

FROM LITTLE ROCK INDICATE 50 KT WLY FLOW AT 2 KM AGL WHICH MAY BE

TRANSLATED TO THE SFC BY REAR-INFLOW JET DEVELOPING WITHIN TRAILING

STRATIFORM REGION OF MCS.  DOWNSTREAM AIR MASS SHOULD REMAIN BUOYANT

AND WEAKLY TO MODERATELY UNSTABLE FOR THE NEXT 1-3 HOURS...ALLOWING

FOR THE CONTINUED THREAT FOR DAMAGING WINDS AND SOME HAIL THROUGH

THE REMAINDER OF THE EVENING.



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

TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS.

A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION

VECTOR 27040.





...MEAD

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