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

Tuesday, February 1, 2011

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

SPC Tornado Watch 10
Tue, 01 Feb 2011 13:07:02 -0600

URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 10 NWS STORM PREDICTION CENTER NORMAN OK 105 PM CST TUE FEB 1 2011 THE NWS STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF SOUTHWEST ALABAMA THE WESTERN FLORIDA PANHANDLE PARTS OF EAST CENTRAL AND SOUTHEAST MISSISSIPPI COASTAL WATERS EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 105 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 90 STATUTE MILES EAST AND WEST OF A LINE FROM 85 MILES NORTHWEST OF EVERGREEN ALABAMA TO 40 MILES SOUTH SOUTHEAST OF GULFPORT MISSISSIPPI. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0). 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 9... DISCUSSION...A BROKEN SQUALL LINE WILL CONTINUE EWD ACROSS SE LA AND SRN MS THROUGH THE AFTERNOON...REACHING SW AL AROUND 23Z. OTHER CONVECTION IS DEVELOPING IN ADVANCE OF THE LINE FROM SE LA INTO SE MS ALONG THE LLJ AND MOIST AXIS. A SPECIAL 18Z SOUNDING FROM LIX SHOWED THAT THE PRIMARY INSTABILITY IS STILL BASED JUST ABOVE THE SURFACE...BUT VERY STRONG LOW-LEVEL SHEAR IS STILL SUPPORTIVE OF DAMAGING WINDS AND A COUPLE OF TORNADOES...ESPECIALLY GIVEN THE MORE CELLULAR CONVECTIVE MODES NOW OBSERVED. 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 450. MEAN STORM MOTION VECTOR 24045. ...THOMPSON

SPC Tornado Watch 10 Status Reports
Tue, 01 Feb 2011 13:07:10 -0600

  STATUS FOR WATCH 0010 HAS NOT BEEN ISSUED YET

SPC Tornado Watch 9 Status Reports
Tue, 01 Feb 2011 12:41:03 -0600

  STATUS REPORT ON WW 9  SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 S 7R4 TO 35 NNW BTR TO 25 E HEZ TO 40 WNW JAN.  FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 0069.  ..PETERS..02/01/11  ATTN...WFO...LCH...LIX...SHV...JAN...   STATUS REPORT FOR WT 9   SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS   LAC005-007-033-037-045-047-051-057-063-071-075-077-087-089-091- 093-095-099-101-103-105-109-117-121-125-011940-  LA  .    LOUISIANA PARISHES INCLUDED ARE  ASCENSION            ASSUMPTION          EAST BATON ROUGE     EAST FELICIANA       IBERIA              IBERVILLE            JEFFERSON            LAFOURCHE           LIVINGSTON           ORLEANS              PLAQUEMINES         POINTE COUPEE        ST. BERNARD          ST. CHARLES         ST. HELENA           ST. JAMES            ST. JOHN THE BAPTISTST. MARTIN           ST. MARY             ST. TAMMANY         TANGIPAHOA           TERREBONNE           WASHINGTON          WEST BATON ROUGE     WEST FELICIANA          MSC005-021-029-037-049-063-065-077-085-089-091-113-121-127-147- 149-157-011940-  MS  .    MISSISSIPPI COUNTIES INCLUDED ARE

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