SPC Severe Thunderstorm Watch 738
Mon, 01 Nov 2010 19:56:03 -0500
URGENT - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WATCH NUMBER 738 NWS STORM PREDICTION CENTER NORMAN OK 750 PM CDT MON NOV 1 2010 THE NWS STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR PORTIONS OF SOUTHWEST ARKANSAS NORTHWEST LOUISIANA EASTERN AND SOUTHEASTERN TEXAS COASTAL WATERS EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 750 PM UNTIL 300 AM CDT. HAIL TO 2 INCHES 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 60 STATUTE MILES EITHER SIDE OF A LINE FROM 40 MILES EAST OF TEXARKANA ARKANSAS TO 35 MILES WEST NORTHWEST OF ANGLETON TEXAS. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8). 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...TSTMS EXPECTED TO INCREASE IN COVERAGE AND INTENSITY THROUGH EARLY TUE OVER PARTS OF ERN/SE TX AND WRN LA AS LOW LVL WAA/MOISTURE INFLOW STRENGTHEN DOWNSTREAM FROM AMPLIFYING W TX UPR TROUGH. WEAK MID LVL FLOW SHOULD GRADUALLY INCREASE AND BACK. COUPLED WITH EXISTING LOW LVL FORCING MECHANISMS /MAINLY THE SSW-NNE BOUNDARY FROM W OF KHGX TO NEAR KSHV/...SETUP SHOULD FAVOR BROKEN LINE SEGMENTS/SMALL CLUSTERS OF MULTICELLS AND POSSIBLY MARGINAL SUPERCELLS WITH SVR HAIL/LOCALLY DMGG WIND. LOCALLY ENHANCED LOW LVL SPEED/DIRECTIONAL SHEAR NEAR MCS OUTFLOW BNDRY IN THE KHGX/KGLS AREA...AND RICH MOISTURE...SUGGEST A NON-ZERO TORNADO THREAT ACROSS THAT REGION. THIS THREAT...HOWEVER...APPEARS TOO LOW TO WARRANT A SEPARATE TORNADO WATCH ATTM. AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 21025. ...CORFIDIRead more
SPC Severe Thunderstorm Watch 738 Status Reports
Mon, 01 Nov 2010 19:56:11 -0500
STATUS FOR WATCH 0738 HAS NOT BEEN ISSUED YETRead more
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