SPC Tornado Watch 772
Fri, 31 Dec 2010 13:35:03 -0600
URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 772 NWS STORM PREDICTION CENTER NORMAN OK 135 PM CST FRI DEC 31 2010 THE NWS STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF NORTHEAST AND CENTRAL LOUISIANA SOUTHERN MISSISSIPPI EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 135 PM UNTIL 800 PM CST. TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 65 STATUTE MILES EAST AND WEST OF A LINE FROM 50 MILES NORTH OF NATCHEZ MISSISSIPPI TO 40 MILES SOUTH SOUTHEAST OF ALEXANDRIA LOUISIANA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2). 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...CONTINUE...WW 767...WW 769...WW 770...WW 771... DISCUSSION...SUPERCELLS ARE QUICKLY DEVELOPING WITHIN WAA REGIME OVER CNTRL LA THIS AFTERNOON. 18Z LCH SOUNDING INDICATED THE PRESENCE OF A MOIST...MODERATELY UNSTABLE ENVIRONMENT WITH MLCAPE OF AROUND 2000 J/KG. WHEN COUPLED WITH A RATHER STRONGLY SHEARED KINEMATIC ENVIRONMENT...SETUP WILL FAVOR THE CONTINUED DEVELOPMENT OF ROTATING STORMS CAPABLE OF TORNADOES...DAMAGING WINDS AND SOME HAIL. AVIATION...TORNADOES AND 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 23035. ...MEADRead more
SPC Tornado Watch 772 Status Reports
Fri, 31 Dec 2010 13:35:12 -0600
STATUS FOR WATCH 0772 HAS NOT BEEN ISSUED YETRead more
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