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

Monday, November 29, 2010

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

SPC Tornado Watch 756
Mon, 29 Nov 2010 23:41:03 -0600

URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 756 NWS STORM PREDICTION CENTER NORMAN OK 1140 PM CST MON NOV 29 2010 THE NWS STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF WEST CENTRAL AND NORTHERN ALABAMA EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 1140 PM UNTIL 700 AM 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 25 MILES NORTH OF HUNTSVILLE ALABAMA TO 50 MILES EAST OF MERIDIAN MISSISSIPPI. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6). 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 755... DISCUSSION...BAND OF THUNDERSTORMS ACROSS CENTRAL/NE MS WILL SPREAD EWD/NEWD ACROSS WRN AND NRN AL THROUGH THE OVERNIGHT HOURS. THE LOW LEVELS WILL CONTINUE TO WARM/MOISTEN NWD ACROSS AL AS THE WARM FRONT PROGRESSES NWD...ALLOWING INSTABILITY TO BE BASED NEAR THE SURFACE. THE NEAR SURFACE-BASED INSTABILITY AND VERY STRONG LOW-LEVEL SHEAR WILL SUPPORT A RISK OF A FEW TORNADOES AND DAMAGING GUSTS WITH EMBEDDED SUPERCELL OR LEWP STRUCTURES THROUGH THE EARLY MORNING HOURS. 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 24040. ...THOMPSON

SPC Tornado Watch 756 Status Reports
Mon, 29 Nov 2010 23:41:11 -0600

  STATUS FOR WATCH 0756 HAS NOT BEEN ISSUED YET

SPC Tornado Watch 755 Status Reports
Mon, 29 Nov 2010 22:28:04 -0600

  STATUS REPORT ON WW 755  THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.  ..KERR..11/30/10  ATTN...WFO...LCH...LIX...JAN...MEG...   STATUS REPORT FOR WT 755   SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS   LAC001-003-005-007-009-019-023-029-033-037-039-045-047-053-055- 063-077-079-091-097-099-101-103-105-107-113-117-121-125- 300540-  LA  .    LOUISIANA PARISHES INCLUDED ARE  ACADIA               ALLEN               ASCENSION            ASSUMPTION           AVOYELLES           CALCASIEU            CAMERON              CONCORDIA           EAST BATON ROUGE     EAST FELICIANA       EVANGELINE          IBERIA               IBERVILLE            JEFFERSON DAVIS     LAFAYETTE            LIVINGSTON           POINTE COUPEE       RAPIDES              ST. HELENA           ST. LANDRY          ST. MARTIN           ST. MARY             ST. TAMMANY         TANGIPAHOA           TENSAS               VERMILION           WASHINGTON           WEST BATON ROUGE     WEST FELICIANA         MSC001-005-007-013-015-017-019-021-023-025-029-031-035-037-043- 049-051-057-061-063-065-067-069-073-075-077-079-081-085-087-089- 091-095-097-099-101-103-105-109-113-115-121-123-127-129-147-149- 155-157-159-161-163-300540-  MS  .    MISSISSIPPI COUNTIES INCLUDED ARE

SPC Tornado Watch 754 Status Reports
Mon, 29 Nov 2010 20:34:04 -0600

  STATUS REPORT ON WW 754  THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.  WW WILL LIKELY BE REPLACED SHORTLY.  FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 2091.  ..KERR..11/30/10  ATTN...WFO...LIX...JAN...   STATUS REPORT FOR WT 754   SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS   LAC005-033-037-047-063-077-091-103-105-117-121-125-300340-  LA  .    LOUISIANA PARISHES INCLUDED ARE  ASCENSION            EAST BATON ROUGE    EAST FELICIANA       IBERVILLE            LIVINGSTON          POINTE COUPEE        ST. HELENA           ST. TAMMANY         TANGIPAHOA           WASHINGTON           WEST BATON ROUGE    WEST FELICIANA         MSC005-007-023-029-031-035-037-049-061-065-067-069-073-075-077- 079-085-089-091-099-101-103-109-113-121-123-127-129-147-157-159- 300340-  MS  .    MISSISSIPPI COUNTIES INCLUDED ARE  AMITE                ATTALA              CLARKE               COPIAH               COVINGTON           FORREST              FRANKLIN             HINDS               JASPER               JEFFERSON DAVIS      JONES               KEMPER

SPC Tornado Watch 753 Status Reports
Mon, 29 Nov 2010 20:33:04 -0600

  STATUS REPORT ON WW 753  SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 SSE LFK TO 45 SSE LFK AND 50 NW BPT TO 5 SE MLU TO 10 N GLH.  NEW WW IS LIKELY FOR PARTS OF REMAINING VALID PORTION OF WW.  FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 2091.  ..KERR..11/30/10  ATTN...WFO...JAN...LZK...SHV...LCH...   STATUS REPORT FOR WT 753   SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS   LAC001-003-009-011-019-021-023-025-029-035-039-041-043-053-059- 065-067-069-073-079-083-097-107-115-123-127-300300-  LA  .    LOUISIANA PARISHES INCLUDED ARE  ACADIA               ALLEN               AVOYELLES            BEAUREGARD           CALCASIEU           CALDWELL             CAMERON              CATAHOULA           CONCORDIA            EAST CARROLL         EVANGELINE          FRANKLIN             GRANT                JEFFERSON DAVIS     LA SALLE             MADISON              MOREHOUSE           NATCHITOCHES         OUACHITA             RAPIDES             RICHLAND             ST. LANDRY           TENSAS              VERNON               WEST CARROLL         WINN                   MSC001-011-015-021-051-053-055-063-083-125-133-149-151-163- 300300-  MS

SPC Public Severe Weather Outlook
Mon, 29 Nov 2010 19:55:02 -0600

 PUBLIC SEVERE WEATHER OUTLOOK   NWS STORM PREDICTION CENTER NORMAN OK 0753 PM CST MON NOV 29 2010   ...THE STORM PREDICTION CENTER IN NORMAN OK IS FORECASTING THE POSSIBLE DEVELOPMENT OF TORNADOES...POTENTIALLY STRONG...AND DAMAGING WINDS OVER PARTS OF THE LA...MS AND WRN AL THIS EVENING AND OVERNIGHT...  A MOIST AND UNSTABLE AIR MASS WILL CONTINUE TO MOVE NORTHWARD ACROSS THE AREA BEHIND A WARM FRONT. LIFT WITH A LOW PRESSURE TROUGH WILL CONTINUE THE THREAT OF THUNDERSTORMS THROUGH MORNING. STRONG WIND SHEAR PROFILES WILL REMAIN FAVORABLE FOR SEVERE THUNDERSTORMS CAPABLE OF PRODUCING TORNADOES AND DAMAGING WIND GUSTS. STORMS WILL BE MOVING NORTHEASTWARD AT 45-55 MPH.  WHILE OVERALL SEVERE THUNDERSTORM COVERAGE IS NOT EXPECTED TO BE WIDESPREAD...THE POTENTIAL FOR A SIGNIFICANT TORNADO AFTER DARK WARRANTS HEIGHTENED SAFETY PRECAUTIONS.  TORNADOES DURING THE OVERNIGHT HOURS AT THIS TIME OF YEAR CAN BE PARTICULARLY DANGEROUS BECAUSE THEY ARE USUALLY FAST-MOVING AND OBSCURED BY RAIN AND DARKNESS.  THE AREAS MOST LIKELY TO EXPERIENCE THIS ACTIVITY INCLUDE         WESTERN ALABAMA        CENTRAL AND EASTERN LOUISIANA        MUCH OF MISSISSIPPI  STATE AND LOCAL EMERGENCY MANAGERS ARE MONITORING THIS DEVELOPING SITUATION. THOSE IN THE THREATENED AREA ARE URGED TO REVIEW SEVERE WEATHER SAFETY RULES AND TO LISTEN TO RADIO...TELEVISION...AND NOAA WEATHER RADIO FOR POSSIBLE WATCHES...WARNINGS...AND STATEMENTS TONIGHT.

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