Tornado Watch Up --> South TX Coast
Posted by JAC on 6/30/2010, 12:29 pm



URGENT - IMMEDIATE BROADCAST REQUESTED
  TORNADO WATCH NUMBER 430
  NWS STORM PREDICTION CENTER NORMAN OK
  1045 AM CDT WED JUN 30 2010
 
  THE NWS STORM PREDICTION CENTER HAS ISSUED A
  TORNADO WATCH FOR PORTIONS OF
 
         THE LOWER AND MIDDLE TEXAS COAST
         COASTAL WATERS
 
  EFFECTIVE THIS WEDNESDAY MORNING AND EVENING FROM 1045 AM UNTIL
  800 PM CDT.
 
  SEVERAL TORNADOES
 
  THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 45 STATUTE
  MILES EAST AND WEST OF A LINE FROM 35 MILES NORTHEAST OF CORPUS
  CHRISTI TEXAS TO 40 MILES EAST SOUTHEAST OF MCALLEN TEXAS.  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.
 
  DISCUSSION...HURRICANE ALEX CONTINUES TO MOVE TOWARD EXTREME NE
  MEXICO...LEAVING S TX IN THE RIGHT FRONT QUADRANT OF THE STORM
  CIRCULATION.  LOCAL VWP/S HAVE SHOWN AN INCREASE IN LOW-LEVEL
  FLOW/SHEAR OVER THE PAST FEW HOURS...AND EMBEDDED SUPERCELL
  STRUCTURES ARE TENDING TO SURVIVE CLOSER TO THE COAST WITH TIME IN
  THE BANDS N OF THE STORM CENTER.  GIVEN THE PRESENCE OF 77-80 F
  DEWPOINTS...SURFACE-BASED INSTABILITY...AND INCREASING VERTICAL
  SHEAR...THE PROBABILITY OF A FEW TORNADOES WILL SLOWLY INCREASE
  THROUGH THE AFTERNOON.
 
  AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
  SURFACE AND ALOFT TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE
  WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
  550. MEAN STORM MOTION VECTOR 09035.
 
 
  ...THOMPSON

Hazard Tornadoes EF2+ Tornadoes
Likelihood Moderate Low
Severe Wind 65 kt+ Wind
Low Low
Severe Hail 2"+ Hail
Very Low Very Low


  SEL0
 
  URGENT - IMMEDIATE BROADCAST REQUESTED
  TORNADO WATCH NUMBER 430
  NWS STORM PREDICTION CENTER NORMAN OK
  1045 AM CDT WED JUN 30 2010
 
  THE NWS STORM PREDICTION CENTER HAS ISSUED A
  TORNADO WATCH FOR PORTIONS OF
 
         THE LOWER AND MIDDLE TEXAS COAST
         COASTAL WATERS
 
  EFFECTIVE THIS WEDNESDAY MORNING AND EVENING FROM 1045 AM UNTIL
  800 PM CDT.
 
  TORNADOES...HAIL TO 0.5 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 45 STATUTE
  MILES EAST AND WEST OF A LINE FROM 35 MILES NORTHEAST OF CORPUS
  CHRISTI TEXAS TO 40 MILES EAST SOUTHEAST OF MCALLEN TEXAS.  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.
 
  DISCUSSION...HURRICANE ALEX CONTINUES TO MOVE TOWARD EXTREME NE
  MEXICO...LEAVING S TX IN THE RIGHT FRONT QUADRANT OF THE STORM
  CIRCULATION.  LOCAL VWP/S HAVE SHOWN AN INCREASE IN LOW-LEVEL
  FLOW/SHEAR OVER THE PAST FEW HOURS...AND EMBEDDED SUPERCELL
  STRUCTURES ARE TENDING TO SURVIVE CLOSER TO THE COAST WITH TIME IN
  THE BANDS N OF THE STORM CENTER.  GIVEN THE PRESENCE OF 77-80 F
  DEWPOINTS...SURFACE-BASED INSTABILITY...AND INCREASING VERTICAL
  SHEAR...THE PROBABILITY OF A FEW TORNADOES WILL SLOWLY INCREASE
  THROUGH THE AFTERNOON.
 
  AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
  SURFACE AND ALOFT TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE
  WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
  550. MEAN STORM MOTION VECTOR 09035.
 
 
  ...THOMPSON

Hazard Tornadoes EF2+ Tornadoes
Likelihood Moderate Low
Severe Wind 65 kt+ Wind
Low Low
Severe Hail 2"+ Hail
Very Low Very Low


Note: Click for Watch Status Reports.

  WOUS64 KWNS 301539
  WOU0
 
  BULLETIN - IMMEDIATE BROADCAST REQUESTED
  TORNADO WATCH OUTLINE UPDATE FOR WT 430
  NWS STORM PREDICTION CENTER NORMAN OK
  1045 AM CDT WED JUN 30 2010
 
  TORNADO WATCH 430 IS IN EFFECT UNTIL 800 PM CDT FOR THE
   FOLLOWING LOCATIONS
 
  TXC007-047-057-061-215-249-261-273-355-391-409-489-010100-
  /O.NEW.KWNS.TO.A.0430.100630T1545Z-100701T0100Z/
 
  TX
  .    TEXAS COUNTIES INCLUDED ARE
 
  ARANSAS              BROOKS              CALHOUN            
  CAMERON              HIDALGO             JIM WELLS          
  KENEDY               KLEBERG             NUECES              
  REFUGIO              SAN PATRICIO        WILLACY            
 
 
  GMZ130-132-135-150-155-230-235-250-255-010100-
  /O.NEW.KWNS.TO.A.0430.100630T1545Z-100701T0100Z/
 
  CW
 
  .    ADJACENT COASTAL WATERS INCLUDED ARE
 
  LAGUNA MADRE FROM THE PORT OF BROWNSVILLE TO THE ARROYO COLORADO
 
  LAGUNA MADRE FROM THE ARROYO COLOARDO TO 5 NM NORTH OF PORT
  MANSFIELD TX
 
  LAGUNA MADRE FROM 5 NM NORTH OF PORT MANSFIELD TO BAFFIN BAY TX
 
  COASTAL WATERS FROM PORT MANSFIELD TX TO THE RIO GRANDE RIVER OUT
  20 NM
 
  COASTAL WATERS FROM BAFFIN BAY TO PORT MANSFIELD TX OUT 20 NM
 
  BAYS AND WATERWAYS FROM BAFFIN BAY TO PORT ARANSAS
 
  BAYS AND WATERWAYS FROM PORT ARANSAS TO PORT O CONNOR
 
  COASTAL WATERS FROM BAFFIN BAY TO PORT ARANSAS OUT 20 NM
 
  COASTAL WATERS FROM PORT ARANSAS TO MATAGORDA SHIP CHANNEL OUT 20
  NM
 
  ATTN...WFO...CRP...BRO...
 
 
 

Hazard Tornadoes EF2+ Tornadoes
Likelihood Moderate Low
Severe Wind 65 kt+ Wind
Low Low
Severe Hail 2"+ Hail
Very Low Very Low


Note: The Aviation Watch (SAW) product is an approximation to the watch area. The actual watch is depicted by the shaded areas.

  SAW0
  WW 430 TORNADO TX CW 301545Z - 010100Z
  AXIS..45 STATUTE MILES EAST AND WEST OF LINE..
  35NE CRP/CORPUS CHRISTI TX/ - 40ESE MFE/MCALLEN TX/
  ..AVIATION COORDS.. 40NM E/W /23NE CRP - 14W BRO/
  HAIL SURFACE AND ALOFT..0.5 INCH. WIND GUSTS..60 KNOTS.
  MAX TOPS TO 550. MEAN STORM MOTION VECTOR 09035.
 
  LAT...LON 28129636 25959691 25959836 28129783
 
  THIS IS AN APPROXIMATION TO THE WATCH AREA.  FOR A
  COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
  FOR WOU0.
 

Watch 430 Status Report Message has not been issued yet.

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Good Chance Cat 2 Before Landfall - JAC, 6/30/2010, 10:57 am
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