SEL3
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 163
   NWS STORM PREDICTION CENTER NORMAN OK
   500 PM CDT FRI APR 17 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          PARTS OF SOUTHWEST KANSAS
          PARTS OF WESTERN OKLAHOMA
          PARTS OF EASTERN TEXAS PANHANDLE AND NORTHWEST TEXAS
   
   EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 500 PM UNTIL
   1000 PM 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 40
   STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES WEST
   NORTHWEST OF GARDEN CITY KANSAS TO 145 MILES SOUTH SOUTHEAST OF
   CHILDRESS TEXAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).
   
   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 160...WW 161...WW 162...
   
   DISCUSSION...THUNDERSTORMS WILL DEVELOP ALONG N/S DRY
   LINE/CONVERGENCE ZONE WHERE AIR MASS HAS BECOME UNSTABLE AHEAD OF
   STRONG UPPER LOW.  PRIMARY THREAT WILL BE LARGE HAIL...PARTICULARLY
   ASSOCIATED WITH ANY SUPERCELL THAT IS ABLE TO DEVELOP. WHILE DEEP
   LAYER SHEAR IS STRONG...LOW LEVEL SHEAR SHOULD RESULT IN PRIMARY
   LARGE HAIL THREAT.
   
   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 19030.
   
   
   ...HALES

   SEL3
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 163
   NWS STORM PREDICTION CENTER NORMAN OK
   500 PM CDT FRI APR 17 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          PARTS OF SOUTHWEST KANSAS
          PARTS OF WESTERN OKLAHOMA
          PARTS OF EASTERN TEXAS PANHANDLE AND NORTHWEST TEXAS
   
   EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 500 PM UNTIL
   1000 PM 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 40
   STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES WEST
   NORTHWEST OF GARDEN CITY KANSAS TO 145 MILES SOUTH SOUTHEAST OF
   CHILDRESS TEXAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).
   
   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 160...WW 161...WW 162...
   
   DISCUSSION...THUNDERSTORMS WILL DEVELOP ALONG N/S DRY
   LINE/CONVERGENCE ZONE WHERE AIR MASS HAS BECOME UNSTABLE AHEAD OF
   STRONG UPPER LOW.  PRIMARY THREAT WILL BE LARGE HAIL...PARTICULARLY
   ASSOCIATED WITH ANY SUPERCELL THAT IS ABLE TO DEVELOP. WHILE DEEP
   LAYER SHEAR IS STRONG...LOW LEVEL SHEAR SHOULD RESULT IN PRIMARY
   LARGE HAIL THREAT.
   
   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 19030.
   
   
   ...HALES

   WOUS64 KWNS 172157
   WOU3
   
   BULLETIN - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 163
   NWS STORM PREDICTION CENTER NORMAN OK
   500 PM CDT FRI APR 17 2009
   
   SEVERE THUNDERSTORM WATCH 163 IS IN EFFECT UNTIL 1000 PM CDT
   FOR THE FOLLOWING LOCATIONS
   
   KSC067-075-129-175-187-189-180300-
   /O.NEW.KWNS.SV.A.0163.090417T2200Z-090418T0300Z/
   
   KS 
   .    KANSAS COUNTIES INCLUDED ARE
   
   GRANT                HAMILTON            MORTON              
   SEWARD               STANTON             STEVENS             
   
   
   OKC007-009-045-055-057-065-129-139-180300-
   /O.NEW.KWNS.SV.A.0163.090417T2200Z-090418T0300Z/
   
   OK 
   .    OKLAHOMA COUNTIES INCLUDED ARE
   
   BEAVER               BECKHAM             ELLIS               
   GREER                HARMON              JACKSON             
   ROGER MILLS          TEXAS               
   
   
   TXC023-075-087-101-155-197-207-211-253-269-275-295-357-393-417-
   433-447-483-487-180300-
   /O.NEW.KWNS.SV.A.0163.090417T2200Z-090418T0300Z/
   
   TX 
   .    TEXAS COUNTIES INCLUDED ARE
   
   BAYLOR               CHILDRESS           COLLINGSWORTH       
   COTTLE               FOARD               HARDEMAN            
   HASKELL              HEMPHILL            JONES               
   KING                 KNOX                LIPSCOMB            
   OCHILTREE            ROBERTS             SHACKELFORD         
   STONEWALL            THROCKMORTON        WHEELER             
   WILBARGER            
   
   
   ATTN...WFO...DDC...OUN...AMA...SJT...LUB...
   
   
   

   SAW3 
   WW 163 SEVERE TSTM KS OK TX 172200Z - 180300Z
   AXIS..40 STATUTE MILES EAST AND WEST OF LINE..
   45WNW GCK/GARDEN CITY KS/ - 145SSE CDS/CHILDRESS TX/
   ..AVIATION COORDS.. 35NM E/W /39WNW GCK - 27E ABI/
   HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
   MAX TOPS TO 450. MEAN STORM MOTION VECTOR 19030.
   
   LAT...LON 38160075 32499863 32490001 38160222
   
   THIS IS AN APPROXIMATION TO THE WATCH AREA.  FOR A
   COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
   FOR WOU3.
   

Watch 163 Status Report Messages:

STATUS REPORT #3 ON WW 163

VALID 180250Z - 180340Z

THIS IS THE FINAL STATUS REPORT FOR WW 163...AS THE SEVERE
THREAT HAS WANED ACROSS THE SWRN KS...WRN OK...AND WRN N-CNTRL
TX.

FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 507

..SMITH..04/18/09

ATTN...WFO...DDC...AMA...OUN...LUB...SJT...

&&

STATUS REPORT FOR WS 163 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

KSC067-075-175-187-189-180340-

KS 
.    KANSAS COUNTIES INCLUDED ARE

GRANT		     HAMILTON		 SEWARD 	     
STANTON 	     STEVENS		 
$$


OKC007-045-129-180340-

OK 
.    OKLAHOMA COUNTIES INCLUDED ARE

BEAVER		     ELLIS		 ROGER MILLS	     
$$


TXC207-211-253-295-357-393-417-433-447-180340-

TX 
.    TEXAS COUNTIES INCLUDED ARE

HASKELL 	     HEMPHILL		 JONES		     
LIPSCOMB	     OCHILTREE		 ROBERTS	     
SHACKELFORD	     STONEWALL		 THROCKMORTON	     
$$


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 163

VALID 180105Z - 180240Z

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 60 NNW ABI
TO 40 ESE BGD TO 40 N EHA.

FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 506

..SMITH..04/18/09

ATTN...WFO...DDC...AMA...OUN...LUB...SJT...

&&

STATUS REPORT FOR WS 163 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

KSC067-075-175-187-189-180240-

KS 
.    KANSAS COUNTIES INCLUDED ARE

GRANT		     HAMILTON		 SEWARD 	     
STANTON 	     STEVENS		 
$$


OKC007-009-045-055-057-065-129-180240-

OK 
.    OKLAHOMA COUNTIES INCLUDED ARE

BEAVER		     BECKHAM		 ELLIS		     
GREER		     HARMON		 JACKSON	     
ROGER MILLS	     
$$


TXC023-087-155-197-207-211-253-275-295-357-393-417-433-447-483-
487-180240-

TX 
.    TEXAS COUNTIES INCLUDED ARE

BAYLOR		     COLLINGSWORTH	 FOARD		     
HARDEMAN	     HASKELL		 HEMPHILL	     
JONES		     KNOX		 LIPSCOMB	     
OCHILTREE	     ROBERTS		 SHACKELFORD	     
STONEWALL	     THROCKMORTON	 WHEELER	     
WILBARGER	     
$$


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 163

VALID 172330Z - 180040Z

THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.

..SMITH..04/17/09

ATTN...WFO...DDC...AMA...OUN...LUB...SJT...

&&

STATUS REPORT FOR WS 163 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

KSC067-075-129-175-187-189-180040-

KS 
.    KANSAS COUNTIES INCLUDED ARE

GRANT		     HAMILTON		 MORTON 	     
SEWARD		     STANTON		 STEVENS	     
$$


OKC007-009-045-055-057-065-129-139-180040-

OK 
.    OKLAHOMA COUNTIES INCLUDED ARE

BEAVER		     BECKHAM		 ELLIS		     
GREER		     HARMON		 JACKSON	     
ROGER MILLS	     TEXAS		 
$$


TXC023-075-087-101-155-197-207-211-253-269-275-295-357-393-417-
433-447-483-487-180040-

TX 
.    TEXAS COUNTIES INCLUDED ARE

BAYLOR		     CHILDRESS		 COLLINGSWORTH	     
COTTLE		     FOARD		 HARDEMAN	     
HASKELL 	     HEMPHILL		 JONES		     
KING		     KNOX		 LIPSCOMB	     
OCHILTREE	     ROBERTS		 SHACKELFORD	     
STONEWALL	     THROCKMORTON	 WHEELER	     
WILBARGER	     
$$


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.