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

Thursday, February 24, 2011

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

SPC Tornado Watch 15
Thu, 24 Feb 2011 18:00:02 -0600

URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 15 NWS STORM PREDICTION CENTER NORMAN OK 520 PM CST THU FEB 24 2011 THE NWS STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF WESTERN KENTUCKY SOUTHEAST MISSOURI EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 520 PM UNTIL 1000 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 25 STATUTE MILES NORTH AND SOUTH OF A LINE FROM 80 MILES WEST SOUTHWEST OF PADUCAH KENTUCKY TO 105 MILES EAST OF PADUCAH KENTUCKY. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5). 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 13...WW 14... DISCUSSION...FAST-MOVING LINE OF THUNDERSTORMS OVER AR WILL TRACK NORTHEASTWARD ALONG SURFACE WARM FRONT INTO WESTERN KY DURING THE NEXT FEW HOURS. DESPITE MARGINAL INSTABILITY...STRONG SURFACE PRESSURE FALLS AND FAVORABLE LOW LEVEL VERTICAL SHEAR SUGGEST AN INCREASING RISK OF SUPERCELL/BOW ECHO STRUCTURES CAPABLE OF DAMAGING WINDS AND ISOLATED TORNADOES. 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 25045. ...HART

SPC Tornado Watch 14
Thu, 24 Feb 2011 18:00:05 -0600

URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 14 NWS STORM PREDICTION CENTER NORMAN OK 235 PM CST THU FEB 24 2011 THE NWS STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF PARTS OF EASTERN ARKANSAS SMALL PART OF NORTHEAST LOUISIANA SMALL PART OF SOUTHEASTERN MISSOURI MUCH OF NORTHERN MISSISSIPPI WESTERN AND PARTS OF MIDDLE TENNESSEE EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 235 PM UNTIL 1000 PM CST. TORNADOES...HAIL TO 2 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 100 STATUTE MILES EAST AND WEST OF A LINE FROM 40 MILES NORTH NORTHEAST OF DYERSBURG TENNESSEE TO 50 MILES SOUTH SOUTHEAST OF GREENVILLE MISSISSIPPI. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4). 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 13... DISCUSSION...INTENSIFYING SURFACE LOW OVER CENTRAL AR IN RESPONSE TO STRONG S/W TROUGH APPROACHING FROM THE W. E/W WARM FRONT STILL MOVING NWD THRU NERN AR/WRN TN WITH WARM SECTOR AIR MASS NOW UNSTABLE AND NEARLY UNCAPPED. WITH VERY STRONG SHEAR PROFILES AND LOW LEVEL CONVERGENCE POTENTIAL FOR SUPERCELLS/TORNADOES EXPECTED TO DEVELOP EWD ACROSS THE WATCH AREA THRU THE EVENING. POTENTIAL FOR MORE DISCRETE STORMS TO DEVELOP ACROSS THE WARM SECTOR WHICH WOULD LEAD TO GREATER THREAT OF TORNADOES PRIOR TO THE ARRIVAL OF A MORE QLCS/WIND DAMAGE THREAT THAT IS EXPECTED TO EVOLVE BY THIS EVENING. AVIATION...TORNADOES AND 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 24045. ...HALES

SPC Tornado Watch 13
Thu, 24 Feb 2011 18:00:09 -0600

URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 13 NWS STORM PREDICTION CENTER NORMAN OK 1125 AM CST THU FEB 24 2011 THE NWS STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF A LARGE PART OF ARKANSAS PARTS OF NORTHERN LOUISIANA PASTS OF SOUTHEASTERN OKLAHOMA PARTS OF NORTHEAST TEXAS EFFECTIVE THIS THURSDAY MORNING AND EVENING FROM 1125 AM UNTIL 600 PM CST. TORNADOES...HAIL TO 2 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 100 STATUTE MILES EAST AND WEST OF A LINE FROM 50 MILES NORTHWEST OF RUSSELLVILLE ARKANSAS TO 25 MILES SOUTHEAST OF SHREVEPORT LOUISIANA. 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. DISCUSSION...THUNDERSTORMS ARE INCREASING IN NUMBER ACROSS ERN OK INTO NERN TX AHEAD OF STRONG S/WV TROUGH AND DEVELOPING SURFACE LOW. WITH AIR MASS NOW FAVORABLY UNSTABLE AND NEARLY UNCAPPED...POTENTIAL FOR SEVERE THUNDERSTORMS INCLUDING SUPERCELLS WILL INCREASE EWD ACROSS THE WATCH THRU THE AFTERNOON. E/W WARM FRONT ACROSS CENTRAL AR WILL BE AN AREA FOR ENHANCED LOW LEVEL SHEAR/SUPERCELL DEVELOPMENT. TORNADOS WILL BE POSSIBLE WITH ANY SUPERCELL THAT DEVELOPS. AVIATION...TORNADOES AND 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 24045. ...HALES

SPC Tornado Watch 15 Status Reports
Thu, 24 Feb 2011 18:00:04 -0600

  STATUS FOR WATCH 0015 HAS NOT BEEN ISSUED YET

SPC Tornado Watch 14 Status Reports
Thu, 24 Feb 2011 18:00:07 -0600

  STATUS REPORT ON WW 14  THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.  FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 0129 FORTHCOMING.  ..COHEN..02/24/11  ATTN...WFO...LZK...JAN...MEG...OHX...   STATUS REPORT FOR WT 14   SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS   ARC001-003-017-021-031-035-037-041-043-055-067-077-079-093-095- 107-111-117-123-147-250040-  AR  .    ARKANSAS COUNTIES INCLUDED ARE  ARKANSAS             ASHLEY              CHICOT               CLAY                 CRAIGHEAD           CRITTENDEN           CROSS                DESHA               DREW                 GREENE               JACKSON             LEE                  LINCOLN              MISSISSIPPI         MONROE               PHILLIPS             POINSETT            PRAIRIE              ST. FRANCIS          WOODRUFF               LAC067-250040-  LA  .    LOUISIANA PARISHES INCLUDED ARE  MOREHOUSE               MSC003-009-011-013-015-017-027-033-043-051-053-057-071-081-083-

SPC Tornado Watch 13 Status Reports
Thu, 24 Feb 2011 18:00:11 -0600

  STATUS REPORT ON WW 13  SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 SSE GGG TO 30 NNE SHV TO 30 SE HOT TO 5 N BVX.  ..COHEN..02/24/11  ATTN...WFO...LZK...SHV...TSA...   STATUS REPORT FOR WT 13   SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS   ARC011-013-025-027-039-053-069-085-103-139-145-250040-  AR  .    ARKANSAS COUNTIES INCLUDED ARE  BRADLEY              CALHOUN             CLEVELAND            COLUMBIA             DALLAS              GRANT                JEFFERSON            LONOKE              OUACHITA             UNION                WHITE                  LAC013-015-017-027-031-049-061-073-081-111-119-250040-  LA  .    LOUISIANA PARISHES INCLUDED ARE  BIENVILLE            BOSSIER             CADDO                CLAIBORNE            DE SOTO             JACKSON              LINCOLN              OUACHITA            RED RIVER            UNION                WEBSTER                TXC365-250040-  TX

To change your subscriptions or preferences or stop subscriptions anytime, log in to your User Profile with your e-mail address. For questions or problems with the service, contact support@govdelivery.com.

This service is provided by NOAA’s National Weather Service.