SEL0
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 70
   NWS STORM PREDICTION CENTER NORMAN OK
   1255 PM CDT THU MAR 26 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          SOUTH CENTRAL AND SOUTHEAST TEXAS
          COASTAL WATERS
   
   EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 1255 PM UNTIL
   700 PM CDT.
   
   HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
   MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
   
   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 55
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 35 MILES SOUTH OF
   COTULLA TEXAS TO 5 MILES EAST SOUTHEAST OF GALVESTON TEXAS.  FOR
   A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
   OUTLINE UPDATE (WOUS64 KWNS WOU0).
   
   REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
   FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
   DO PRODUCE TORNADOES.
   
   OTHER WATCH INFORMATION...CONTINUE...WW 68...WW 69...
   
   DISCUSSION...SEVERE STORMS JUST SOUTH OF SAT ARE EXPECTED TO
   CONTINUE MOVING ESEWD...WHILE OTHER STORMS IN ADVANCE OF THIS
   CONVECTION ARE SLOWLY INTENSIFYING.  ACTIVITY IS ALONG A LOW LEVEL
   BOUNDARY WHERE STRONGER HEATING IS OCCURRING TO THE
   SOUTH...ENHANCING FRONTOGENETIC FORCING.  ENVIRONMENT IS MODERATELY
   UNSTABLE SOUTH OF THE BOUNDARY WITH MLCAPE TO 2000J/KG.  DEEP LAYER
   SHEAR REMAINS STRONG WITH EFFECTIVE BULK SHEAR AOA 40
   KT...INDICATING THREAT FOR SUPERCELLS CAPABLE OF PRODUCING VERY
   LARGE HAIL AND A FEW DAMAGING WIND GUSTS.  ACTIVITY SHOULD CONTINUE
   MOVING IN A GENERAL EASTWARD DIRECTION ALONG THE NRN EDGE OF A
   STRONG UPPER LEVEL JET AXIS.  ALTHOUGH AN ISOLATED BRIEF TORNADO IS
   POSSIBLE...WEAKER LOW LEVEL FLOW AND LIMITED LOW LEVEL SHEAR AND
   HELICITY SHOULD LIMIT OVERALL TORNADO THREAT.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM
   MOTION VECTOR 24030.
   
   
   ...WEISS

   SEL0
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 70
   NWS STORM PREDICTION CENTER NORMAN OK
   1255 PM CDT THU MAR 26 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          SOUTH CENTRAL AND SOUTHEAST TEXAS
          COASTAL WATERS
   
   EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 1255 PM UNTIL
   700 PM CDT.
   
   HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
   MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
   
   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 55
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 35 MILES SOUTH OF
   COTULLA TEXAS TO 5 MILES EAST SOUTHEAST OF GALVESTON TEXAS.  FOR
   A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
   OUTLINE UPDATE (WOUS64 KWNS WOU0).
   
   REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
   FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
   DO PRODUCE TORNADOES.
   
   OTHER WATCH INFORMATION...CONTINUE...WW 68...WW 69...
   
   DISCUSSION...SEVERE STORMS JUST SOUTH OF SAT ARE EXPECTED TO
   CONTINUE MOVING ESEWD...WHILE OTHER STORMS IN ADVANCE OF THIS
   CONVECTION ARE SLOWLY INTENSIFYING.  ACTIVITY IS ALONG A LOW LEVEL
   BOUNDARY WHERE STRONGER HEATING IS OCCURRING TO THE
   SOUTH...ENHANCING FRONTOGENETIC FORCING.  ENVIRONMENT IS MODERATELY
   UNSTABLE SOUTH OF THE BOUNDARY WITH MLCAPE TO 2000J/KG.  DEEP LAYER
   SHEAR REMAINS STRONG WITH EFFECTIVE BULK SHEAR AOA 40
   KT...INDICATING THREAT FOR SUPERCELLS CAPABLE OF PRODUCING VERY
   LARGE HAIL AND A FEW DAMAGING WIND GUSTS.  ACTIVITY SHOULD CONTINUE
   MOVING IN A GENERAL EASTWARD DIRECTION ALONG THE NRN EDGE OF A
   STRONG UPPER LEVEL JET AXIS.  ALTHOUGH AN ISOLATED BRIEF TORNADO IS
   POSSIBLE...WEAKER LOW LEVEL FLOW AND LIMITED LOW LEVEL SHEAR AND
   HELICITY SHOULD LIMIT OVERALL TORNADO THREAT.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM
   MOTION VECTOR 24030.
   
   
   ...WEISS

   WOUS64 KWNS 261754
   WOU0
   
   BULLETIN - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 70
   NWS STORM PREDICTION CENTER NORMAN OK
   1255 PM CDT THU MAR 26 2009
   
   SEVERE THUNDERSTORM WATCH 70 IS IN EFFECT UNTIL 700 PM CDT
   FOR THE FOLLOWING LOCATIONS
   
   TXC007-025-039-057-071-131-157-167-175-201-239-249-273-283-297-
   311-321-355-391-409-469-481-270000-
   /O.NEW.KWNS.SV.A.0070.090326T1755Z-090327T0000Z/
   
   TX 
   .    TEXAS COUNTIES INCLUDED ARE
   
   ARANSAS              BEE                 BRAZORIA            
   CALHOUN              CHAMBERS            DUVAL               
   FORT BEND            GALVESTON           GOLIAD              
   HARRIS               JACKSON             JIM WELLS           
   KLEBERG              LA SALLE            LIVE OAK            
   MATAGORDA            MCMULLEN            NUECES              
   REFUGIO              SAN PATRICIO        VICTORIA            
   WHARTON              
   
   
   GMZ230-235-250-255-330-335-350-355-270000-
   /O.NEW.KWNS.SV.A.0070.090326T1755Z-090327T0000Z/
   
   CW 
   
   .    ADJACENT COASTAL WATERS INCLUDED ARE
   
   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 
   
   MATAGORDA BAY 
   
   GALVESTON BAY 
   
   COASTAL WATERS FROM FREEPORT TO MATAGORDA SHIP CHANNEL TX OUT 20
   NM 
   
   COASTAL WATERS FROM HIGH ISLAND TO FREEPORT TX OUT 20 NM 
   
   ATTN...WFO...CRP...HGX...
   
   
   

   SAW0 
   WW 70 SEVERE TSTM TX CW 261755Z - 270000Z
   AXIS..55 STATUTE MILES NORTH AND SOUTH OF LINE..
   35S COT/COTULLA TX/ - 5ESE GLS/GALVESTON TX/
   ..AVIATION COORDS.. 50NM N/S /30NNE LRD - 53SE IAH/
   HAIL SURFACE AND ALOFT..3 INCHES. WIND GUSTS..60 KNOTS.
   MAX TOPS TO 550. MEAN STORM MOTION VECTOR 24030.
   
   LAT...LON 28739922 30109466 28519466 27149922
   
   THIS IS AN APPROXIMATION TO THE WATCH AREA.  FOR A
   COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
   FOR WOU0.
   

Watch 70 Status Report Messages:

STATUS REPORT #4 ON WW 70

VALID 262345Z - 270040Z

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 55 E CRP TO
25 SSW LBX TO 5 ESE GLS.

..BROYLES..03/26/09

ATTN...WFO...CRP...HGX...

&&

STATUS REPORT FOR WS 70 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

GMZ350-355-270040-

CW 

.    ADJACENT COASTAL WATERS INCLUDED ARE

THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY.  PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$

STATUS REPORT #3 ON WW 70

VALID 262240Z - 262340Z

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 SSW CRP
TO 35 SSW PSX TO 35 WNW HOU.

..HURLBUT..03/26/09

ATTN...WFO...CRP...HGX...

&&

STATUS REPORT FOR WS 70 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

TXC039-071-167-201-291-321-262340-

TX 
.    TEXAS COUNTIES INCLUDED ARE

BRAZORIA	     CHAMBERS		 GALVESTON	     
HARRIS		     LIBERTY		 MATAGORDA	     
$$


GMZ250-255-330-335-350-355-262340-

CW 

.    ADJACENT COASTAL WATERS INCLUDED ARE

COASTAL WATERS FROM BAFFIN BAY TO PORT ARANSAS OUT 20 NM 

COASTAL WATERS FROM PORT ARANSAS TO MATAGORDA SHIP CHANNEL OUT 20
NM 

MATAGORDA BAY 

GALVESTON BAY 

COASTAL WATERS FROM FREEPORT TO MATAGORDA SHIP CHANNEL TX OUT 20
NM 

COASTAL WATERS FROM HIGH ISLAND TO FREEPORT TX OUT 20 NM 

$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY.  PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$

STATUS REPORT #2 ON WW 70

VALID 262135Z - 262240Z

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 SSW ALI
TO 25 E NIR TO 45 NNW VCT.

..HURLBUT..03/26/09

ATTN...WFO...CRP...HGX...

&&

STATUS REPORT FOR WS 70 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

TXC007-039-057-071-157-167-201-239-273-291-321-355-391-469-481-
262240-

TX 
.    TEXAS COUNTIES INCLUDED ARE

ARANSAS 	     BRAZORIA		 CALHOUN	     
CHAMBERS	     FORT BEND		 GALVESTON	     
HARRIS		     JACKSON		 KLEBERG	     
LIBERTY 	     MATAGORDA		 NUECES 	     
REFUGIO 	     VICTORIA		 WHARTON	     
$$


GMZ235-250-255-330-335-350-355-262240-

CW 

.    ADJACENT COASTAL WATERS INCLUDED ARE

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 

MATAGORDA BAY 

GALVESTON BAY 

COASTAL WATERS FROM FREEPORT TO MATAGORDA SHIP CHANNEL TX OUT 20
NM 

COASTAL WATERS FROM HIGH ISLAND TO FREEPORT TX OUT 20 NM 

$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY.  PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$

STATUS REPORT #1 ON WW 70

VALID 262035Z - 262140Z

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 SW ALI TO
15 SE NIR TO 40 NW VCT.

..SPC..03/26/09

ATTN...WFO...CRP...HGX...

&&

STATUS REPORT FOR WS 70 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

TXC007-039-057-071-157-167-175-201-239-249-273-291-321-355-391-
409-469-481-262140-

TX 
.    TEXAS COUNTIES INCLUDED ARE

ARANSAS 	     BRAZORIA		 CALHOUN	     
CHAMBERS	     FORT BEND		 GALVESTON	     
GOLIAD		     HARRIS		 JACKSON	     
JIM WELLS	     KLEBERG		 LIBERTY	     
MATAGORDA	     NUECES		 REFUGIO	     
SAN PATRICIO	     VICTORIA		 WHARTON	     
$$


GMZ230-235-250-255-330-335-350-355-262140-

CW 

.    ADJACENT COASTAL WATERS INCLUDED ARE

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 

MATAGORDA BAY 

GALVESTON BAY 

COASTAL WATERS FROM FREEPORT TO MATAGORDA SHIP CHANNEL TX OUT 20
NM 

COASTAL WATERS FROM HIGH ISLAND TO FREEPORT TX OUT 20 NM 

$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY.  PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$

Please visit the National Weather Service Interactive Weather Information Network (IWIN) for more information on the warnings.

For each watch, probabilities for particular events inside the watch (listed above in each table) are determined by the issuing forecaster. The "Low" category contains probability values ranging from less than 2% to 20% (F2-F5 tornadoes), less than 5% to 20% (all other probabilities), "Moderate" from 30% to 60%, and "High" from 70% to greater than 95%. High values are bolded and lighter in color to provide awareness of an increased threat for a particular event.