SEL4
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 284
   NWS STORM PREDICTION CENTER NORMAN OK
   810 PM CDT THU MAY 8 2008
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          SOUTHERN KANSAS
          NORTHERN OKLAHOMA
   
   EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 810 PM
   UNTIL 200 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 60
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 60 MILES WEST
   NORTHWEST OF MEDICINE LODGE KANSAS TO 35 MILES EAST NORTHEAST OF
   BARTLESVILLE OKLAHOMA.  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...THIS SEVERE THUNDERSTORM WATCH REPLACES
   TORNADO WATCH NUMBER 281. WATCH NUMBER 281 WILL NOT BE IN EFFECT
   AFTER 810 PM CDT. CONTINUE...WW 280...WW 282...WW 283...
   
   DISCUSSION...LINEAR MCS IS EXPECTED TO DEVELOP ALONG STRONG COLD
   FRONT/OUTFLOW BOUNDARY OVER SWRN KS THIS EVENING AND SPREAD QUICKLY
   SEWD ACROSS WW OVERNIGHT ALONG NOSE OF STRENGTHENING SSWLY LLJ. 
   DAMAGING WINDS AND LARGE HAIL ARE EXPECTED TO ACCOMPANY THESE
   STORMS...WHICH SHOULD MOVE INTO SERN KS/NERN OK BEFORE WEAKENING
   LATER TONIGHT.
   
   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 500. MEAN STORM
   MOTION VECTOR 29035.
   
   
   ...EVANS

   SEL4
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 284
   NWS STORM PREDICTION CENTER NORMAN OK
   810 PM CDT THU MAY 8 2008
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          SOUTHERN KANSAS
          NORTHERN OKLAHOMA
   
   EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 810 PM
   UNTIL 200 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 60
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 60 MILES WEST
   NORTHWEST OF MEDICINE LODGE KANSAS TO 35 MILES EAST NORTHEAST OF
   BARTLESVILLE OKLAHOMA.  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...THIS SEVERE THUNDERSTORM WATCH REPLACES
   TORNADO WATCH NUMBER 281. WATCH NUMBER 281 WILL NOT BE IN EFFECT
   AFTER 810 PM CDT. CONTINUE...WW 280...WW 282...WW 283...
   
   DISCUSSION...LINEAR MCS IS EXPECTED TO DEVELOP ALONG STRONG COLD
   FRONT/OUTFLOW BOUNDARY OVER SWRN KS THIS EVENING AND SPREAD QUICKLY
   SEWD ACROSS WW OVERNIGHT ALONG NOSE OF STRENGTHENING SSWLY LLJ. 
   DAMAGING WINDS AND LARGE HAIL ARE EXPECTED TO ACCOMPANY THESE
   STORMS...WHICH SHOULD MOVE INTO SERN KS/NERN OK BEFORE WEAKENING
   LATER TONIGHT.
   
   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 500. MEAN STORM
   MOTION VECTOR 29035.
   
   
   ...EVANS

   WOUS64 KWNS 090106
   WOU4
   
   BULLETIN - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 284
   NWS STORM PREDICTION CENTER NORMAN OK
   810 PM CDT THU MAY 8 2008
   
   SEVERE THUNDERSTORM WATCH 284 IS IN EFFECT UNTIL 200 AM CDT
   FOR THE FOLLOWING LOCATIONS
   
   KSC007-015-019-025-033-035-047-049-057-073-077-079-095-097-119-
   125-145-151-155-173-185-191-205-090700-
   /O.NEW.KWNS.SV.A.0284.080509T0110Z-080509T0700Z/
   
   KS 
   .    KANSAS COUNTIES INCLUDED ARE
   
   BARBER               BUTLER              CHAUTAUQUA          
   CLARK                COMANCHE            COWLEY              
   EDWARDS              ELK                 FORD                
   GREENWOOD            HARPER              HARVEY              
   KINGMAN              KIOWA               MEADE               
   MONTGOMERY           PAWNEE              PRATT               
   RENO                 SEDGWICK            STAFFORD            
   SUMNER               WILSON              
   
   
   OKC003-047-053-071-103-105-113-117-147-151-090700-
   /O.NEW.KWNS.SV.A.0284.080509T0110Z-080509T0700Z/
   
   OK 
   .    OKLAHOMA COUNTIES INCLUDED ARE
   
   ALFALFA              GARFIELD            GRANT               
   KAY                  NOBLE               NOWATA              
   OSAGE                PAWNEE              WASHINGTON          
   WOODS                
   
   
   ATTN...WFO...DDC...OUN...TSA...ICT...
   
   
   

   SAW4 
   WW 284 SEVERE TSTM KS OK 090110Z - 090700Z
   AXIS..60 STATUTE MILES NORTH AND SOUTH OF LINE..
   60WNW P28/MEDICINE LODGE KS/ - 35ENE BVO/BARTLESVILLE OK/
   ..AVIATION COORDS.. 50NM N/S /57ESE GCK - 16SW OSW/
   HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
   MAX TOPS TO 500. MEAN STORM MOTION VECTOR 29035.
   
   REPLACES WW 281..KS 
   
   LAT...LON 38499958 37839543 36099543 36759958
   
   THIS IS AN APPROXIMATION TO THE WATCH AREA.  FOR A
   COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
   FOR WOU4.
   

Watch 284 Status Report Messages:

STATUS REPORT #4 ON WW 284

VALID 090540Z - 090640Z

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 ENE END
TO 35 S ICT TO 35 WSW EMP.

FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 833

..GUYER..05/09/08

ATTN...WFO...DDC...ICT...OUN...TSA...

&&

STATUS REPORT FOR WS 284 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

KSC015-019-035-049-073-125-205-090640-

KS 
.    KANSAS COUNTIES INCLUDED ARE

BUTLER		     CHAUTAUQUA 	 COWLEY 	     
ELK		     GREENWOOD		 MONTGOMERY	     
WILSON		     
$$


OKC071-103-105-113-117-147-090640-

OK 
.    OKLAHOMA COUNTIES INCLUDED ARE

KAY		     NOBLE		 NOWATA 	     
OSAGE		     PAWNEE		 WASHINGTON	     
$$


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 284

VALID 090430Z - 090540Z

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 SSE AVK
TO 30 SW ICT TO 15 ENE HUT.

..GRAMS..05/09/08

ATTN...WFO...DDC...ICT...OUN...TSA...

&&

STATUS REPORT FOR WS 284 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

KSC015-019-035-049-073-079-125-173-191-205-090540-

KS 
.    KANSAS COUNTIES INCLUDED ARE

BUTLER		     CHAUTAUQUA 	 COWLEY 	     
ELK		     GREENWOOD		 HARVEY 	     
MONTGOMERY	     SEDGWICK		 SUMNER 	     
WILSON		     
$$


OKC047-053-071-103-105-113-117-147-090540-

OK 
.    OKLAHOMA COUNTIES INCLUDED ARE

GARFIELD	     GRANT		 KAY		     
NOBLE		     NOWATA		 OSAGE		     
PAWNEE		     WASHINGTON 	 
$$


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 284

VALID 090340Z - 090440Z

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 W AVK TO
10 NE P28 TO 20 NW HUT.

..PETERS..05/09/08

ATTN...WFO...DDC...ICT...OUN...TSA...

&&

STATUS REPORT FOR WS 284 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

KSC007-015-019-035-049-073-077-079-095-125-155-173-191-205-
090440-

KS 
.    KANSAS COUNTIES INCLUDED ARE

BARBER		     BUTLER		 CHAUTAUQUA	     
COWLEY		     ELK		 GREENWOOD	     
HARPER		     HARVEY		 KINGMAN	     
MONTGOMERY	     RENO		 SEDGWICK	     
SUMNER		     WILSON		 
$$


OKC003-047-053-071-103-105-113-117-147-151-090440-

OK 
.    OKLAHOMA COUNTIES INCLUDED ARE

ALFALFA 	     GARFIELD		 GRANT		     
KAY		     NOBLE		 NOWATA 	     
OSAGE		     PAWNEE		 WASHINGTON	     
WOODS		     
$$


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 284

VALID 090230Z - 090340Z

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 SE DDC TO
35 S RSL.

..PETERS..05/09/08

ATTN...WFO...DDC...ICT...OUN...TSA...

&&

STATUS REPORT FOR WS 284 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

KSC007-015-019-033-035-049-073-077-079-095-097-125-151-155-173-
185-191-205-090340-

KS 
.    KANSAS COUNTIES INCLUDED ARE

BARBER		     BUTLER		 CHAUTAUQUA	     
COMANCHE	     COWLEY		 ELK		     
GREENWOOD	     HARPER		 HARVEY 	     
KINGMAN 	     KIOWA		 MONTGOMERY	     
PRATT		     RENO		 SEDGWICK	     
STAFFORD	     SUMNER		 WILSON 	     
$$


OKC003-047-053-071-103-105-113-117-147-151-090340-

OK 
.    OKLAHOMA COUNTIES INCLUDED ARE

ALFALFA 	     GARFIELD		 GRANT		     
KAY		     NOBLE		 NOWATA 	     
OSAGE		     PAWNEE		 WASHINGTON	     
WOODS		     
$$


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.