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

Tuesday, October 26, 2010

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

SPC PDS Tornado Watch 723
Tue, 26 Oct 2010 09:30:04 -0500

URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 723 NWS STORM PREDICTION CENTER NORMAN OK 930 AM CDT TUE OCT 26 2010 THE NWS STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF NORTHERN ALABAMA MIDDLE TENNESSEE EFFECTIVE THIS TUESDAY MORNING AND AFTERNOON FROM 930 AM UNTIL 500 PM CDT. ...THIS IS A PARTICULARLY DANGEROUS SITUATION... DESTRUCTIVE TORNADOES...LARGE 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 85 STATUTE MILES EAST AND WEST OF A LINE FROM 60 MILES NORTHEAST OF NASHVILLE TENNESSEE TO 55 MILES SOUTHEAST OF TUPELO MISSISSIPPI. 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...CONTINUE...WW 720...WW 721...WW 722... DISCUSSION...A PRE-FRONTAL BAND OF CONVECTION CURRENTLY DEEPENING FROM N-CNTRL MS NWD TO E OF MKL IS EXPECTED TO EVOLVE INTO TSTMS LATE THIS MORNING WITHIN A STRONGLY SHEARED AND WARMING/DESTABILIZING ENVIRONMENT. THE COMBINATION OF EFFECTIVE SRH OF 300-400 M2/S2...MLCAPE OF 500-1000 J/KG AND THE POTENTIAL FOR MORE DISCRETE STORM MODES SUGGEST A THREAT LONG-TRACKED SUPERCELLS CAPABLE OF STRONG TORNADOES. 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 500. MEAN STORM MOTION VECTOR 24050. ...MEAD

SPC Tornado Watch 723 Status Reports
Tue, 26 Oct 2010 09:30:12 -0500

  STATUS FOR WATCH 0723 HAS NOT BEEN ISSUED YET

SPC Tornado Watch 722 Status Reports
Tue, 26 Oct 2010 08:03:12 -0500

  STATUS FOR WATCH 0722 HAS NOT BEEN ISSUED YET

SPC Tornado Watch 721 Status Reports
Tue, 26 Oct 2010 08:43:06 -0500

  STATUS REPORT ON WW 721  SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 N ELD TO 40 WNW MEM TO 35 NE DYR TO 45 NNE EVV.  ..ROGERS..10/26/10  ATTN...WFO...LZK...MEG...SHV...PAH...OHX...   STATUS REPORT FOR WT 721   SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS   ARC001-011-013-025-035-041-043-069-077-079-095-103-107-123- 261440-  AR  .    ARKANSAS COUNTIES INCLUDED ARE  ARKANSAS             BRADLEY             CALHOUN              CLEVELAND            CRITTENDEN          DESHA                DREW                 JEFFERSON           LEE                  LINCOLN              MONROE              OUACHITA             PHILLIPS             ST. FRANCIS            INC125-147-163-173-261440-  IN  .    INDIANA COUNTIES INCLUDED ARE  PIKE                 SPENCER             VANDERBURGH          WARRICK                 KYC033-035-047-055-059-101-107-139-143-149-157-177-219-221-225- 233-261440-

SPC Tornado Watch 720 Status Reports
Tue, 26 Oct 2010 09:31:05 -0500

  STATUS REPORT ON WW 720  SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 NE EVV TO 35 ENE LAF TO 40 WSW MKG TO 20 ESE MTW.  ..ROGERS..10/26/10  ATTN...WFO...LSX...ILX...LOT...IND...IWX...GRR...MKX...   STATUS REPORT FOR WT 720   SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS   INC011-013-039-049-053-057-059-063-067-081-085-093-095-097-099- 101-103-105-109-145-159-169-261540-  IN  .    INDIANA COUNTIES INCLUDED ARE  BOONE                BROWN               ELKHART              FULTON               GRANT               HAMILTON             HANCOCK              HENDRICKS           HOWARD               JOHNSON              KOSCIUSKO           LAWRENCE             MADISON              MARION              MARSHALL             MARTIN               MIAMI               MONROE               MORGAN               SHELBY              TIPTON               WABASH                  MIC005-015-021-027-067-077-081-085-105-107-117-121-123-127-133- 139-149-159-261540-  MI  .    MICHIGAN COUNTIES INCLUDED ARE  ALLEGAN              BARRY               BERRIEN              CASS                 IONIA               KALAMAZOO            KENT                 LAKE                MASON

SPC Tornado Watch 719 Status Reports
Tue, 26 Oct 2010 05:38:05 -0500

  STATUS REPORT ON WW 719  SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 10 SSE PIA TO 25 E MLI TO 5 N DBQ TO 25 NW LNR.  ..GOSS..10/26/10  ATTN...WFO...ARX...DMX...DVN...LSX...LOT...ILX...EAX...SGF... PAH...MKX...   STATUS REPORT FOR WT 719   SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS   ILC007-011-015-037-085-099-103-107-123-141-143-155-175-177-179- 195-201-203-261140-  IL  .    ILLINOIS COUNTIES INCLUDED ARE  BOONE                BUREAU              CARROLL              DEKALB               JO DAVIESS          LA SALLE             LEE                  LOGAN               MARSHALL             OGLE                 PEORIA              PUTNAM               STARK                STEPHENSON          TAZEWELL             WHITESIDE            WINNEBAGO           WOODFORD               WIC021-025-045-049-065-105-111-261140-  WI  .    WISCONSIN COUNTIES INCLUDED ARE  COLUMBIA             DANE                GREEN                IOWA                 LAFAYETTE           ROCK                 SAUK

SPC Public Severe Weather Outlook
Tue, 26 Oct 2010 05:13:02 -0500

 PUBLIC SEVERE WEATHER OUTLOOK   NWS STORM PREDICTION CENTER NORMAN OK 0511 AM CDT TUE OCT 26 2010  ...SEVERE THUNDERSTORMS EXPECTED OVER PARTS OF THE OHIO AND TENNESSEE VALLEYS AND GREAT LAKES...  THE NWS STORM PREDICTION CENTER IN NORMAN OK IS FORECASTING THE DEVELOPMENT OF WIDESPREAD DAMAGING WINDS AND A FEW TORNADOES OVER PARTS OF THE OHIO AND TENNESSEE VALLEYS AND GREAT LAKES TODAY THROUGH EARLY WEDNESDAY  THE AREAS MOST LIKELY TO EXPERIENCE THIS ACTIVITY INCLUDE         EASTERN ILLINOIS        INDIANA        NORTHERN KENTUCKY        SOUTHERN MICHIGAN        WESTERN AND CENTRAL OHIO  ELSEWHERE...SEVERE STORMS ALSO ARE POSSIBLE FROM THE LOWER MISSISSIPPI VALLEY NORTHEASTWARD INTO THE APPALACHIANS AND LOWER GREAT LAKES  A POWERFUL JET STREAM DISTURBANCE...WITH WINDS IN EXCESS OF 175 MILES PER HOUR...WILL MOVE FROM THE CENTRAL ROCKIES ACROSS THE CENTRAL PLAINS INTO OHIO VALLEY LATER TODAY AND TONIGHT.  AT THE SAME TIME...AN INTENSE SURFACE LOW ASSOCIATED WITH THE JET WILL FURTHER STRENGTHEN AS IT TRACKS SLOWLY NORTHEAST FROM MINNESOTA INTO WESTERN ONTARIO.  A COLD FRONT TRAILING SOUTH FROM THE LOW WILL SERVE AS THE MAIN FOCUS FOR THUNDERSTORM DEVELOPMENT THROUGH EARLY WEDNESDAY AS THE FRONT ACCELERATES EAST ACROSS THE OHIO AND TENNESSEE VALLEYS TODAY...AND ACROSS THE LOWER GREAT LAKES AND THE APPALACHIANS TONIGHT/EARLY WEDNESDAY.

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