SEL6
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 216
   NWS STORM PREDICTION CENTER NORMAN OK
   1235 AM MDT THU APR 30 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          NORTHEAST COLORADO
          NORTHWEST KANSAS
          SOUTHWEST NEBRASKA
   
   EFFECTIVE THIS THURSDAY MORNING FROM 1235 AM UNTIL 800 AM MDT.
   
   HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 60
   MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
   
   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 90
   STATUTE MILES EAST AND WEST OF A LINE FROM 35 MILES NORTHWEST OF
   MCCOOK NEBRASKA TO 55 MILES SOUTH OF MCCOOK NEBRASKA.  FOR A
   COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
   UPDATE (WOUS64 KWNS WOU6).
   
   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 215...
   
   DISCUSSION...TSTMS HAVE FORMED IN THE PAST 2 HRS ALONG COLD FRONT
   MOVING SE ACROSS THE CNTRL HI PLNS.  ADDITIONAL STORMS EXPECTED TO
   FORM ALONG FRONT THROUGH LATER THIS MORNING GIVEN CONSIDERABLE DEPTH
   OF BOUNDARY AND INCREASINGLY MOIST SSELY LOW LVL FLOW DIRECTED INTO
   IT.  WHILE DEEP SHEAR WILL BE MODEST...COMBINATION OF STEEP MID LVL
   LAPSE RATES AND FORCED ASCENT OF MOIST AIR AT FRONT MAY SUPPORT SCTD
   SVR HAIL.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 50
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM
   MOTION VECTOR 28025.
   
   
   ...CORFIDI

   SEL6
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 216
   NWS STORM PREDICTION CENTER NORMAN OK
   1235 AM MDT THU APR 30 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          NORTHEAST COLORADO
          NORTHWEST KANSAS
          SOUTHWEST NEBRASKA
   
   EFFECTIVE THIS THURSDAY MORNING FROM 1235 AM UNTIL 800 AM MDT.
   
   HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 60
   MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
   
   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 90
   STATUTE MILES EAST AND WEST OF A LINE FROM 35 MILES NORTHWEST OF
   MCCOOK NEBRASKA TO 55 MILES SOUTH OF MCCOOK NEBRASKA.  FOR A
   COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
   UPDATE (WOUS64 KWNS WOU6).
   
   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 215...
   
   DISCUSSION...TSTMS HAVE FORMED IN THE PAST 2 HRS ALONG COLD FRONT
   MOVING SE ACROSS THE CNTRL HI PLNS.  ADDITIONAL STORMS EXPECTED TO
   FORM ALONG FRONT THROUGH LATER THIS MORNING GIVEN CONSIDERABLE DEPTH
   OF BOUNDARY AND INCREASINGLY MOIST SSELY LOW LVL FLOW DIRECTED INTO
   IT.  WHILE DEEP SHEAR WILL BE MODEST...COMBINATION OF STEEP MID LVL
   LAPSE RATES AND FORCED ASCENT OF MOIST AIR AT FRONT MAY SUPPORT SCTD
   SVR HAIL.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 50
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM
   MOTION VECTOR 28025.
   
   
   ...CORFIDI

   WOUS64 KWNS 300633
   WOU6
   
   BULLETIN - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 216
   NWS STORM PREDICTION CENTER NORMAN OK
   1235 AM MDT THU APR 30 2009
   
   SEVERE THUNDERSTORM WATCH 216 IS IN EFFECT UNTIL 800 AM MDT
   FOR THE FOLLOWING LOCATIONS
   
   COC125-301400-
   /O.NEW.KWNS.SV.A.0216.090430T0635Z-090430T1400Z/
   
   CO 
   .    COLORADO COUNTIES INCLUDED ARE
   
   YUMA                 
   
   
   KSC023-039-065-137-147-153-163-179-193-301400-
   /O.NEW.KWNS.SV.A.0216.090430T0635Z-090430T1400Z/
   
   KS 
   .    KANSAS COUNTIES INCLUDED ARE
   
   CHEYENNE             DECATUR             GRAHAM              
   NORTON               PHILLIPS            RAWLINS             
   ROOKS                SHERIDAN            THOMAS              
   
   
   NEC029-057-063-065-073-083-085-087-137-145-301400-
   /O.NEW.KWNS.SV.A.0216.090430T0635Z-090430T1400Z/
   
   NE 
   .    NEBRASKA COUNTIES INCLUDED ARE
   
   CHASE                DUNDY               FRONTIER            
   FURNAS               GOSPER              HARLAN              
   HAYES                HITCHCOCK           PHELPS              
   RED WILLOW           
   
   
   ATTN...WFO...GLD...GID...LBF...
   
   
   

   SAW6 
   WW 216 SEVERE TSTM CO KS NE 300635Z - 301400Z
   AXIS..90 STATUTE MILES EAST AND WEST OF LINE..
   35NW MCK/MCCOOK NE/ - 55S MCK/MCCOOK NE/
   ..AVIATION COORDS.. 80NM E/W /30NW MCK - 18WNW HLC/
   HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..50 KNOTS.
   MAX TOPS TO 450. MEAN STORM MOTION VECTOR 28025.
   
   LAT...LON 40549933 39389888 39380226 40540276
   
   THIS IS AN APPROXIMATION TO THE WATCH AREA.  FOR A
   COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
   FOR WOU6.
   

Watch 216 Status Report Messages:

STATUS REPORT #4 ON WW 216

VALID 301040Z - 301140Z

AN ISOLATED SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20
E HLC TO 40 SSW EAR. 

..MEAD..04/30/09

ATTN...WFO...GLD...GID...LBF...

&&

STATUS REPORT FOR WS 216 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

KSC089-163-183-301140-

KS 
.    KANSAS COUNTIES INCLUDED ARE

JEWELL		     ROOKS		 SMITH		     
$$


NEC001-035-061-099-129-181-301140-

NE 
.    NEBRASKA COUNTIES INCLUDED ARE

ADAMS		     CLAY		 FRANKLIN	     
KEARNEY 	     NUCKOLLS		 WEBSTER	     
$$


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 216

VALID 300945Z - 301040Z

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 ENE GLD
TO 15 SSW MCK TO 40 E MCK TO 25 WSW EAR.

..MEAD..04/30/09

ATTN...WFO...GLD...GID...LBF...

&&

STATUS REPORT FOR WS 216 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

KSC039-065-089-137-147-163-179-183-193-301040-

KS 
.    KANSAS COUNTIES INCLUDED ARE

DECATUR 	     GRAHAM		 JEWELL 	     
NORTON		     PHILLIPS		 ROOKS		     
SHERIDAN	     SMITH		 THOMAS 	     
$$


NEC001-035-061-065-083-099-129-137-181-301040-

NE 
.    NEBRASKA COUNTIES INCLUDED ARE

ADAMS		     CLAY		 FRANKLIN	     
FURNAS		     HARLAN		 KEARNEY	     
NUCKOLLS	     PHELPS		 WEBSTER	     
$$


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 216

VALID 300840Z - 300940Z

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 E AKO TO
25 ENE MCK TO 35 W EAR.

..MEAD..04/30/09

ATTN...WFO...GLD...GID...LBF...

&&

STATUS REPORT FOR WS 216 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

COC125-300940-

CO 
.    COLORADO COUNTIES INCLUDED ARE

YUMA		     
$$


KSC023-039-065-137-147-153-163-179-193-300940-

KS 
.    KANSAS COUNTIES INCLUDED ARE

CHEYENNE	     DECATUR		 GRAHAM 	     
NORTON		     PHILLIPS		 RAWLINS	     
ROOKS		     SHERIDAN		 THOMAS 	     
$$


NEC057-065-073-083-087-137-145-300940-

NE 
.    NEBRASKA COUNTIES INCLUDED ARE

DUNDY		     FURNAS		 GOSPER 	     
HARLAN		     HITCHCOCK		 PHELPS 	     
RED WILLOW	     
$$


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 216

VALID 300735Z - 300840Z

THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.

..MEAD..04/30/09

ATTN...WFO...GLD...GID...LBF...

&&

STATUS REPORT FOR WS 216 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

COC125-300840-

CO 
.    COLORADO COUNTIES INCLUDED ARE

YUMA		     
$$


KSC023-039-065-137-147-153-163-179-193-300840-

KS 
.    KANSAS COUNTIES INCLUDED ARE

CHEYENNE	     DECATUR		 GRAHAM 	     
NORTON		     PHILLIPS		 RAWLINS	     
ROOKS		     SHERIDAN		 THOMAS 	     
$$


NEC029-057-063-065-073-083-085-087-137-145-300840-

NE 
.    NEBRASKA COUNTIES INCLUDED ARE

CHASE		     DUNDY		 FRONTIER	     
FURNAS		     GOSPER		 HARLAN 	     
HAYES		     HITCHCOCK		 PHELPS 	     
RED WILLOW	     
$$


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.