Storm Prediction Center Severe Thunderstorm Watch 214

Hazard	Tornadoes	EF2+ Tornadoes
Likelihood	Low	Very Low

Severe Wind	65 kt+ Wind
Moderate	Moderate

Severe Hail	2"+ Hail
Moderate	Low

Note: The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
Note: Click for Watch Status Reports.

   SEL4
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 214
   NWS STORM PREDICTION CENTER NORMAN OK
   930 PM CDT WED APR 29 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          SOUTHWEST OKLAHOMA
          NORTH TEXAS
   
   EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 930 PM
   UNTIL 300 AM CDT.
   
   HAIL TO 2 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 80
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 55 MILES SOUTHWEST
   OF ALTUS OKLAHOMA TO 60 MILES NORTH NORTHEAST OF FORT WORTH
   TEXAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED
   WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).
   
   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 211...WW 213...
   
   DISCUSSION...CLUSTERS OF THUNDERSTORMS ARE RE-DEVELOPING ACROSS
   WESTERN NORTH TX AND SOUTHWEST OK...IN REGION OF STRONG LOW LEVEL
   WARM ADVECTION AND AMPLE MOISTURE/INSTABILITY.  THESE STORMS WILL
   LIKELY PERSIST FOR SEVERAL HOURS AND PROPAGATE SOUTHEASTWARD DOWN
   THE RED RIVER VALLEY.
   
   AVIATION...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 450. MEAN STORM
   MOTION VECTOR 29025.
   
   
   ...HART

Hazard	Tornadoes	EF2+ Tornadoes
Likelihood	Low	Very Low

Severe Wind	65 kt+ Wind
Moderate	Moderate

Severe Hail	2"+ Hail
Moderate	Low

   SEL4
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 214
   NWS STORM PREDICTION CENTER NORMAN OK
   930 PM CDT WED APR 29 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          SOUTHWEST OKLAHOMA
          NORTH TEXAS
   
   EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 930 PM
   UNTIL 300 AM CDT.
   
   HAIL TO 2 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 80
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 55 MILES SOUTHWEST
   OF ALTUS OKLAHOMA TO 60 MILES NORTH NORTHEAST OF FORT WORTH
   TEXAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED
   WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).
   
   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 211...WW 213...
   
   DISCUSSION...CLUSTERS OF THUNDERSTORMS ARE RE-DEVELOPING ACROSS
   WESTERN NORTH TX AND SOUTHWEST OK...IN REGION OF STRONG LOW LEVEL
   WARM ADVECTION AND AMPLE MOISTURE/INSTABILITY.  THESE STORMS WILL
   LIKELY PERSIST FOR SEVERAL HOURS AND PROPAGATE SOUTHEASTWARD DOWN
   THE RED RIVER VALLEY.
   
   AVIATION...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 450. MEAN STORM
   MOTION VECTOR 29025.
   
   
   ...HART

Hazard	Tornadoes	EF2+ Tornadoes
Likelihood	Low	Very Low

Severe Wind	65 kt+ Wind
Moderate	Moderate

Severe Hail	2"+ Hail
Moderate	Low

Note: Click for Watch Status Reports.

   WOUS64 KWNS 300224
   WOU4
   
   BULLETIN - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 214
   NWS STORM PREDICTION CENTER NORMAN OK
   930 PM CDT WED APR 29 2009
   
   SEVERE THUNDERSTORM WATCH 214 IS IN EFFECT UNTIL 300 AM CDT
   FOR THE FOLLOWING LOCATIONS
   
   OKC009-019-031-033-055-057-065-067-075-085-099-137-141-300800-
   /O.NEW.KWNS.SV.A.0214.090430T0230Z-090430T0800Z/
   
   OK 
   .    OKLAHOMA COUNTIES INCLUDED ARE
   
   BECKHAM              CARTER              COMANCHE            
   COTTON               GREER               HARMON              
   JACKSON              JEFFERSON           KIOWA               
   LOVE                 MURRAY              STEPHENS            
   TILLMAN              
   
   
   TXC009-023-077-097-121-155-197-207-237-253-275-337-363-367-417-
   429-447-485-487-497-503-300800-
   /O.NEW.KWNS.SV.A.0214.090430T0230Z-090430T0800Z/
   
   TX 
   .    TEXAS COUNTIES INCLUDED ARE
   
   ARCHER               BAYLOR              CLAY                
   COOKE                DENTON              FOARD               
   HARDEMAN             HASKELL             JACK                
   JONES                KNOX                MONTAGUE            
   PALO PINTO           PARKER              SHACKELFORD         
   STEPHENS             THROCKMORTON        WICHITA             
   WILBARGER            WISE                YOUNG               
   
   
   ATTN...WFO...OUN...FWD...SJT...

Hazard	Tornadoes	EF2+ Tornadoes
Likelihood	Low	Very Low

Severe Wind	65 kt+ Wind
Moderate	Moderate

Severe Hail	2"+ Hail
Moderate	Low

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

   SAW4 
   WW 214 SEVERE TSTM OK TX 300230Z - 300800Z
   AXIS..80 STATUTE MILES NORTH AND SOUTH OF LINE..
   55SW LTS/ALTUS OK/ - 60NNE FTW/FORT WORTH TX/
   ..AVIATION COORDS.. 70NM N/S /24SE CDS - 37SSE ADM/
   HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
   MAX TOPS TO 450. MEAN STORM MOTION VECTOR 29025.
   
   LAT...LON 35249994 34779697 32459697 32939994
   
   THIS IS AN APPROXIMATION TO THE WATCH AREA.  FOR A
   COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
   FOR WOU4.

Watch 214 Status Report Messages:

STATUS REPORT #1 ON WW 214

VALID 300340Z - 300440Z

THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.

..BROYLES..04/30/09

ATTN...WFO...OUN...FWD...SJT...

&&

STATUS REPORT FOR WS 214 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

OKC009-019-031-033-055-057-065-067-075-085-099-137-141-300440-

OK 
.    OKLAHOMA COUNTIES INCLUDED ARE

BECKHAM 	     CARTER		 COMANCHE	     
COTTON		     GREER		 HARMON 	     
JACKSON 	     JEFFERSON		 KIOWA		     
LOVE		     MURRAY		 STEPHENS	     
TILLMAN 	     
$$


TXC009-023-077-097-121-155-197-207-237-253-275-337-363-367-417-
429-447-485-487-497-503-300440-

TX 
.    TEXAS COUNTIES INCLUDED ARE

ARCHER		     BAYLOR		 CLAY		     
COOKE		     DENTON		 FOARD		     
HARDEMAN	     HASKELL		 JACK		     
JONES		     KNOX		 MONTAGUE	     
PALO PINTO	     PARKER		 SHACKELFORD	     
STEPHENS	     THROCKMORTON	 WICHITA	     
WILBARGER	     WISE		 YOUNG		     
$$


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.
$$

Hazard	Tornadoes	EF2+ Tornadoes
Likelihood	Low	Very Low

Severe Wind	65 kt+ Wind
Moderate	Moderate

Severe Hail	2"+ Hail
Moderate	Low

Note: Click for Complete Product Text.
Tornadoes

Probability of 2 or more tornadoes	Low (20%)
Probability of 1 or more strong (F2-F5) tornadoes	Low (5%)

Wind

Probability of 10 or more severe wind events	Mod (40%)
Probability of 1 or more wind events > 65 knots	Mod (30%)

Hail

Probability of 10 or more severe hail events	Mod (50%)
Probability of 1 or more hailstones > 2 inches	Low (20%)

Combined Severe Hail/Wind

Probability of 6 or more combined severe hail/wind events

High (90%)

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.