Compact News: NOAA's National Weather Service SPC Tornado/Severe Thunderstorm Watches Update

Monday, February 28, 2011

NOAA's National Weather Service SPC Tornado/Severe Thunderstorm Watches Update

SPC Tornado Watch 33
Mon, 28 Feb 2011 12:36:02 -0600

URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 33 NWS STORM PREDICTION CENTER NORMAN OK 130 PM EST MON FEB 28 2011 THE NWS STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF CENTRAL AND NORTHEAST ALABAMA NORTHWEST GEORGIA WESTERN NORTH CAROLINA UPSTATE SOUTH CAROLINA SOUTHERN MIDDLE AND EASTERN TENNESSEE EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 130 PM UNTIL 800 PM EST. TORNADOES...HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 110 STATUTE MILES EAST AND WEST OF A LINE FROM 50 MILES NORTH OF HICKORY NORTH CAROLINA TO 50 MILES SOUTHEAST OF TUSCALOOSA ALABAMA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3). 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...THIS TORNADO WATCH REPLACES TORNADO WATCH NUMBER 31. WATCH NUMBER 31 WILL NOT BE IN EFFECT AFTER 130 PM EST. CONTINUE...WW 32... DISCUSSION...STORM COVERAGE/INTENSITY SHOULD INCREASE THROUGH THE AFTERNOON ALONG AND IMMEDIATELY AHEAD OF A WEAK SURFACE WAVE ACROSS MIDDLE TN...AND IN ADVANCE OF A MIDLEVEL TROUGH OVER NRN MS/WRN TN/WRN KY. THE STORM ENVIRONMENT REMAINS FAVORABLE FOR SUPERCELLS AND A FEW TORNADOES ACROSS SE TN/AL/NW GA PER THE 18Z BMX SOUNDING. FARTHER N...STORMS IN ERN TN WILL DEVELOP EWD INTO NW NC...ALONG THE OUTFLOW BOUNDARY FROM THE EARLIER CONVECTION THAT CROSSED INTO VA. INSTABILITY WILL BE A LITTLE WEAKER THAN AREAS FARTHER SW...BUT VERTICAL SHEAR REMAINS STRONG...AND THE POTENTIAL WILL REMAIN FOR EMBEDDED SUPERCELL STRUCTURES. LATER DURING THE AFTERNOON...CONVECTION IS EXPECTED TO EVOLVE INTO MORE OF A LINEAR SYSTEM WITH A THREAT FOR DAMAGING WINDS AND BRIEF SPIN UPS ALONG THE BOWING LINE SEGMENTS. AVIATION...TORNADOES AND 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 450. MEAN STORM MOTION VECTOR 26045. ...THOMPSON

SPC Tornado Watch 33 Status Reports
Mon, 28 Feb 2011 12:36:11 -0600

  STATUS REPORT ON WW 11  SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 WSW PFN TO 25 ENE DHN.  REMAINDER WW MAY BE ALLOWED TO EXPIRE AS SCHEDULED.  MESOSCALE DISCUSSION FORTHCOMING.  ..EDWARDS..02/02/11  ATTN...WFO...TAE...MOB...   STATUS REPORT FOR WT 11   SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS   ALC067-069-020540-  AL  .    ALABAMA COUNTIES INCLUDED ARE  HENRY                HOUSTON                FLC005-013-037-039-045-063-077-133-020540-  FL  .    FLORIDA COUNTIES INCLUDED ARE  BAY                  CALHOUN             FRANKLIN             GADSDEN              GULF                JACKSON              LIBERTY              WASHINGTON             GAC007-037-061-087-099-201-253-020540-  GA  .    GEORGIA COUNTIES INCLUDED ARE

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