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

Friday, December 31, 2010

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

SPC Tornado Watch 1
Fri, 31 Dec 2010 22:49:02 -0600

URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 1 NWS STORM PREDICTION CENTER NORMAN OK 1045 PM CST FRI DEC 31 2010 THE NWS STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF PARTS OF WEST CENTRAL AND NORTHWEST ALABAMA EXTREME NORTHEAST LOUISIANA CENTRAL AND NORTHEAST MISSISSIPPI EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 1045 PM UNTIL 600 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 NORTH AND SOUTH OF A LINE FROM 50 MILES NORTHWEST OF NATCHEZ MISSISSIPPI TO 25 MILES NORTHEAST OF TUSCALOOSA ALABAMA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1). 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 773. WATCH NUMBER 773 WILL NOT BE IN EFFECT AFTER 1045 PM CST. DISCUSSION...A BAND OF SEVERE STORMS WILL LIKELY PERSIST OVERNIGHT AND SAG SEWD IN ASSOCIATION WITH CONVECTIVE OUTFLOW AND EWD PROGRESS OF THE SYNOPTIC COLD FRONT CROSSING THE MS RIVER. A FEED OF 65-70 F BOUNDARY LAYER DEWPOINTS AND THE NEWD EXTENSION OF MIDLEVEL LAPSE RATES AOA 7 C/KM WILL MAINTAIN MUCAPE ON THE ORDER OF 500-1000 J/KG INTO WRN AL AND 1000-2000 J/KG INTO CENTRAL/SW MS OVERNIGHT. VERTICAL SHEAR WILL REMAIN FAVORABLE FOR SUPERCELLS WITH AN ATTENDANT RISK FOR DAMAGING WINDS AND A COUPLE OF TORNADOES...ESPECIALLY IN CENTRAL MS WHERE THE STRONGER SURFACE-BASED INSTABILITY COINCIDES WITH THE ENHANCED SHEAR ALONG THE LLJ AXIS. 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 24035. ...THOMPSON

SPC Tornado Watch 773 Status Reports
Fri, 31 Dec 2010 19:57:35 -0600

  STATUS REPORT ON WW 773  THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.  ..JEWELL..01/01/11  ATTN...WFO...JAN...MEG...   STATUS REPORT FOR WT 773   SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS   ARC003-017-077-107-010540-  AR  .    ARKANSAS COUNTIES INCLUDED ARE  ASHLEY               CHICOT              LEE                  PHILLIPS                LAC025-029-035-041-065-067-083-107-123-010540-  LA  .    LOUISIANA PARISHES INCLUDED ARE  CATAHOULA            CONCORDIA           EAST CARROLL         FRANKLIN             MADISON             MOREHOUSE            RICHLAND             TENSAS              WEST CARROLL           MSC001-003-007-009-011-013-015-017-019-021-023-025-027-029-031- 033-035-037-043-049-051-053-055-057-061-063-065-067-069-071-073- 075-077-079-081-083-085-087-089-091-093-095-097-099-101-103-105- 107-115-117-119-121-123-125-127-129-133-135-137-139-141-143-145- 149-151-155-159-161-163-010540-  MS

SPC Tornado Watch 1 Status Reports
Fri, 31 Dec 2010 22:49:11 -0600

  STATUS REPORT ON WW 773  THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.  ..JEWELL..01/01/11  ATTN...WFO...JAN...MEG...   STATUS REPORT FOR WT 773   SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS   ARC003-017-077-107-010540-  AR  .    ARKANSAS COUNTIES INCLUDED ARE  ASHLEY               CHICOT              LEE                  PHILLIPS                LAC025-029-035-041-065-067-083-107-123-010540-  LA  .    LOUISIANA PARISHES INCLUDED ARE  CATAHOULA            CONCORDIA           EAST CARROLL         FRANKLIN             MADISON             MOREHOUSE            RICHLAND             TENSAS              WEST CARROLL           MSC001-003-007-009-011-013-015-017-019-021-023-025-027-029-031- 033-035-037-043-049-051-053-055-057-061-063-065-067-069-071-073- 075-077-079-081-083-085-087-089-091-093-095-097-099-101-103-105- 107-115-117-119-121-123-125-127-129-133-135-137-139-141-143-145- 149-151-155-159-161-163-010540-  MS

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