HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE JACKSON MS 555 AM CDT MON APR 25 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST LOUISIANA...SOUTHEAST ARKANSAS AND AREAS ALONG AND NORTH OF I-20 IN MISSISSIPPI. .DAY ONE...TODAY AND TONIGHT... BREEZY TO WINDY CONDITIONS WILL EXIST TODAY AS SOUTHERLY WINDS INCREASE THIS AFTERNOON. BREEZY CONDITIONS WILL OCCUR FOR ALL AREA...BUT THE STRONGEST WINDS WILL BE OVER THE DELTA REGION. HERE...SUSTAINED WINDS WILL RANGE FROM 20-30 MPH WITH HIGHER GUSTS. A WIND ADVISORY IS IN EFFECT. SEVERE STORMS WILL BE POSSIBLE THIS EVENING AND OVERNIGHT...MAINLY FOR AREAS ALONG AND NORTH OF A RAYVILLE TO KOSCIUSKO TO STARKVILLE LINE. UNCERTAINTY EXISTS ON THE STORM MODE...THERE COULD EXIST A FEW SUPERCELL STORMS ALONG WITH A EVOLVING SQUALL LINE. ANY SUPERCELL STORMS THAT DEVELOP WILL HAVE THE POTENTIAL TO PRODUCE STRONG TORNADOES...LARGE HAIL AND DAMAGING WINDS. IF A SQUALL LINE DEVELOPS...THEN THE RISK WILL BE MORE WITH DAMAGING WINDS ALONG WITH A FEW TORNADOES AND LARGE HAIL. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY... ANOTHER EPISODE OF SEVERE STORMS WILL BE POSSIBLE FROM LATE TUESDAY AFTERNOON...OVERNIGHT AND INTO WEDNESDAY. INITIALLY...AREAS NORTH OF I-20 WILL HAVE THE RISK INTO TUESDAY NIGHT. THE RISK WILL SHIFT A BIT ON WEDNESDAY TO AREAS MAINLY ALONG AND EAST OF I-55 WITH AN ENHANCED RISK FOR AREAS EAST OF I-55 AND NORTH OF I-20. ONLY A FEW STORMS ARE ANTICIPATED TO DEVELOP AT THIS TIME. HOWEVER...ANY STORM THAT DEVELOPS WILL EXIST IN A ENVIRONMENT WITH A RARE COMBINATION OF INSTABILITY AND WIND SHEAR. SUCH CONDITIONS WILL FAVOR SUPERCELLS WITH THE POTENTIAL TO PRODUCE STRONG TORNADOES...LARGE HAIL AND DAMAGING WINDS. THERE ALSO EXISTS THE POTENTIAL FOR LOCALLY HEAVY RAINFALL TUESDAY NIGHT IF STORMS BEGIN TO MOVE OVER THE SAME LOCATIONS. THIS RISK IS MAINLY FOR AREAS WITHIN THE HIGHWAY 82 CORRIDOR. .SPOTTER CALL TO ACTION STATEMENT... THE ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS...AND EMERGENCY MANAGEMENT PERSONNEL IN SUPPORT OF SEVERE WEATHER OPERATIONS...MAY BE NEEDED TONIGHT AND AGAIN TUESDAY NIGHT INTO WEDNESDAY.
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