SEL7
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 287
   NWS STORM PREDICTION CENTER NORMAN OK
   1230 PM MDT FRI MAY 9 2008
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          NEBRASKA PANHANDLE
          EXTREME SOUTHWEST SOUTH DAKOTA
          EASTERN WYOMING
   
   EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 1230 PM UNTIL
   900 PM MDT.
   
   HAIL TO 1.5 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 75
   STATUTE MILES EAST AND WEST OF A LINE FROM 110 MILES NORTH OF
   DOUGLAS WYOMING TO 10 MILES SOUTHWEST OF SIDNEY NEBRASKA.  FOR A
   COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
   UPDATE (WOUS64 KWNS WOU7).
   
   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.
   
   DISCUSSION...STRONG SHRTWV TROUGH DVLPG EAST ACRS ROCKIES ATTM WILL
   AID STORM INITIATION AND MAINTENENCE ACROSS AREA THROUGH LATE TODAY.
   LIMITED MOISTURE AND WEAK CONVECTIVE INSTABILITY WILL BE SOMEWHAT
   COUNTERED BY STEEPENING MID LEVEL LAPSE RATES...FORCING...AND SHEAR
   AS THE MID LEVEL DISTURBANCE SPREADS EAST. GENERALLY HIGH-BASED
   ORGANIZED STORMS/SUPERCELLS ARE ANTICIPATED WITH ATTENDANT THREATS
   OF POTENTIALLY DAMAGING HAIL AND HIGH WINDS.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 350. MEAN STORM
   MOTION VECTOR 28025.
   
   
   ...CARBIN

   SEL7
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 287
   NWS STORM PREDICTION CENTER NORMAN OK
   1230 PM MDT FRI MAY 9 2008
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          NEBRASKA PANHANDLE
          EXTREME SOUTHWEST SOUTH DAKOTA
          EASTERN WYOMING
   
   EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 1230 PM UNTIL
   900 PM MDT.
   
   HAIL TO 1.5 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 75
   STATUTE MILES EAST AND WEST OF A LINE FROM 110 MILES NORTH OF
   DOUGLAS WYOMING TO 10 MILES SOUTHWEST OF SIDNEY NEBRASKA.  FOR A
   COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
   UPDATE (WOUS64 KWNS WOU7).
   
   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.
   
   DISCUSSION...STRONG SHRTWV TROUGH DVLPG EAST ACRS ROCKIES ATTM WILL
   AID STORM INITIATION AND MAINTENENCE ACROSS AREA THROUGH LATE TODAY.
   LIMITED MOISTURE AND WEAK CONVECTIVE INSTABILITY WILL BE SOMEWHAT
   COUNTERED BY STEEPENING MID LEVEL LAPSE RATES...FORCING...AND SHEAR
   AS THE MID LEVEL DISTURBANCE SPREADS EAST. GENERALLY HIGH-BASED
   ORGANIZED STORMS/SUPERCELLS ARE ANTICIPATED WITH ATTENDANT THREATS
   OF POTENTIALLY DAMAGING HAIL AND HIGH WINDS.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 350. MEAN STORM
   MOTION VECTOR 28025.
   
   
   ...CARBIN

   WOUS64 KWNS 091827
   WOU7
   
   BULLETIN - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 287
   NWS STORM PREDICTION CENTER NORMAN OK
   1230 PM MDT FRI MAY 9 2008
   
   SEVERE THUNDERSTORM WATCH 287 IS IN EFFECT UNTIL 900 PM MDT
   FOR THE FOLLOWING LOCATIONS
   
   NEC007-013-033-045-049-069-105-123-157-161-165-100300-
   /O.NEW.KWNS.SV.A.0287.080509T1830Z-080510T0300Z/
   
   NE 
   .    NEBRASKA COUNTIES INCLUDED ARE
   
   BANNER               BOX BUTTE           CHEYENNE            
   DAWES                DEUEL               GARDEN              
   KIMBALL              MORRILL             SCOTTS BLUFF        
   SHERIDAN             SIOUX               
   
   
   SDC033-047-100300-
   /O.NEW.KWNS.SV.A.0287.080509T1830Z-080510T0300Z/
   
   SD 
   .    SOUTH DAKOTA COUNTIES INCLUDED ARE
   
   CUSTER               FALL RIVER          
   
   
   WYC005-009-015-021-027-031-045-100300-
   /O.NEW.KWNS.SV.A.0287.080509T1830Z-080510T0300Z/
   
   WY 
   .    WYOMING COUNTIES INCLUDED ARE
   
   CAMPBELL             CONVERSE            GOSHEN              
   LARAMIE              NIOBRARA            PLATTE              
   WESTON               
   
   
   ATTN...WFO...CYS...UNR...LBF...
   
   
   

   SAW7 
   WW 287 SEVERE TSTM NE SD WY 091830Z - 100300Z
   AXIS..75 STATUTE MILES EAST AND WEST OF LINE..
   110N DGW/DOUGLAS WY/ - 10SW SNY/SIDNEY NE/
   ..AVIATION COORDS.. 65NM E/W /50ENE CZI - 9SW SNY/
   HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..60 KNOTS.
   MAX TOPS TO 350. MEAN STORM MOTION VECTOR 28025.
   
   LAT...LON 44330384 40990168 40990455 44330688
   
   THIS IS AN APPROXIMATION TO THE WATCH AREA.  FOR A
   COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
   FOR WOU7.
   

Watch 287 Status Report Messages:

STATUS REPORT #6 ON WW 287

VALID 100025Z - 100140Z

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 ESE SNY
TO 55 ENE SNY.

REMAINING PORTIONS OF WW 287 WILL LIKELY BE CANCELLED EARLY.

..CROSBIE..05/10/08

ATTN...WFO...CYS...LBF...UNR...

&&

STATUS REPORT FOR WS 287 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

NEC049-100140-

NE 
.    NEBRASKA COUNTIES INCLUDED ARE

DEUEL		     
$$


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 #5 ON WW 287

VALID 092330Z - 100040Z

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 ESE SNY
TO 20 SE CDR.

FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 844

..CROSBIE..05/09/08

ATTN...WFO...CYS...LBF...UNR...

&&

STATUS REPORT FOR WS 287 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

NEC049-069-161-100040-

NE 
.    NEBRASKA COUNTIES INCLUDED ARE

DEUEL		     GARDEN		 SHERIDAN	     
$$


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 #4 ON WW 287

VALID 092235Z - 092340Z

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 S DGW TO
35 N DGW TO 10 W GCC.

..CROSBIE..05/09/08

ATTN...WFO...CYS...LBF...UNR...

&&

STATUS REPORT FOR WS 287 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

NEC007-013-033-045-049-069-105-123-157-161-165-092340-

NE 
.    NEBRASKA COUNTIES INCLUDED ARE

BANNER		     BOX BUTTE		 CHEYENNE	     
DAWES		     DEUEL		 GARDEN 	     
KIMBALL 	     MORRILL		 SCOTTS BLUFF	     
SHERIDAN	     SIOUX		 
$$


SDC033-047-092340-

SD 
.    SOUTH DAKOTA COUNTIES INCLUDED ARE

CUSTER		     FALL RIVER 	 
$$


WYC005-009-015-021-027-031-045-092340-

WY 
.    WYOMING COUNTIES INCLUDED ARE

CAMPBELL	     CONVERSE		 GOSHEN 	     
LARAMIE 	     NIOBRARA		 PLATTE 	     
WESTON		     
$$


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 287

VALID 092130Z - 092240Z

THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.

FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 843.

..CROSBIE..05/09/08

ATTN...WFO...CYS...LBF...UNR...

&&

STATUS REPORT FOR WS 287 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

NEC007-013-033-045-049-069-105-123-157-161-165-092240-

NE 
.    NEBRASKA COUNTIES INCLUDED ARE

BANNER		     BOX BUTTE		 CHEYENNE	     
DAWES		     DEUEL		 GARDEN 	     
KIMBALL 	     MORRILL		 SCOTTS BLUFF	     
SHERIDAN	     SIOUX		 
$$


SDC033-047-092240-

SD 
.    SOUTH DAKOTA COUNTIES INCLUDED ARE

CUSTER		     FALL RIVER 	 
$$


WYC005-009-015-021-027-031-045-092240-

WY 
.    WYOMING COUNTIES INCLUDED ARE

CAMPBELL	     CONVERSE		 GOSHEN 	     
LARAMIE 	     NIOBRARA		 PLATTE 	     
WESTON		     
$$


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 287

VALID 092035Z - 092140Z

THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.

..KERR..05/09/08

ATTN...WFO...CYS...LBF...UNR...

&&

STATUS REPORT FOR WS 287 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

NEC007-013-033-045-049-069-105-123-157-161-165-092140-

NE 
.    NEBRASKA COUNTIES INCLUDED ARE

BANNER		     BOX BUTTE		 CHEYENNE	     
DAWES		     DEUEL		 GARDEN 	     
KIMBALL 	     MORRILL		 SCOTTS BLUFF	     
SHERIDAN	     SIOUX		 
$$


SDC033-047-092140-

SD 
.    SOUTH DAKOTA COUNTIES INCLUDED ARE

CUSTER		     FALL RIVER 	 
$$


WYC005-009-015-021-027-031-045-092140-

WY 
.    WYOMING COUNTIES INCLUDED ARE

CAMPBELL	     CONVERSE		 GOSHEN 	     
LARAMIE 	     NIOBRARA		 PLATTE 	     
WESTON		     
$$


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 287

VALID 091940Z - 092040Z

THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.

..CROSBIE..05/09/08

ATTN...WFO...CYS...LBF...UNR...

&&

STATUS REPORT FOR WS 287 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

NEC007-013-033-045-049-069-105-123-157-161-165-092040-

NE 
.    NEBRASKA COUNTIES INCLUDED ARE

BANNER		     BOX BUTTE		 CHEYENNE	     
DAWES		     DEUEL		 GARDEN 	     
KIMBALL 	     MORRILL		 SCOTTS BLUFF	     
SHERIDAN	     SIOUX		 
$$


SDC033-047-092040-

SD 
.    SOUTH DAKOTA COUNTIES INCLUDED ARE

CUSTER		     FALL RIVER 	 
$$


WYC005-009-015-021-027-031-045-092040-

WY 
.    WYOMING COUNTIES INCLUDED ARE

CAMPBELL	     CONVERSE		 GOSHEN 	     
LARAMIE 	     NIOBRARA		 PLATTE 	     
WESTON		     
$$


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.