SEL2
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 662
   NWS STORM PREDICTION CENTER NORMAN OK
   850 PM CDT SUN JUL 6 2008
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          SOUTHWEST AND SOUTH CENTRAL NEBRASKA
   
   EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 850 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 45
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 25 MILES WEST
   NORTHWEST OF IMPERIAL NEBRASKA TO GRAND ISLAND NEBRASKA.  FOR A
   COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
   UPDATE (WOUS64 KWNS WOU2).
   
   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 660...WW 661...
   
   DISCUSSION...THE INTERACTION OF MERGING OUTFLOWS AND A STALLED FRONT
   ACROSS SRN NEB WILL SUPPORT ADDITIONAL THUNDERSTORM DEVELOP THROUGH
   THE OVERNIGHT HOURS.  THUNDERSTORM COVERAGE/INTENSITY WILL BE AIDED
   BY THE APPROACH OF A WEAK SHORTWAVE TROUGH FROM THE SW AND WARM
   ADVECTION ON THE NOSE OF A DEVELOPING LLJ IN KS.  MODERATE
   INSTABILITY AND EFFECTIVE BULK SHEAR OF 35-40 KT ON THE COOL SIDE OF
   THE STALLED FRONT SHOULD BE SUFFICIENT FOR ORGANIZED STORM
   CLUSTERS...AND PERHAPS SUPERCELLS.  LARGE HAIL AND DAMAGING WINDS
   WILL BE THE MAIN THREATS...THOUGH AN ISOLATED TORNADO CANNOT BE
   RULED OUT GIVEN THE MOIST BOUNDARY LAYER AND POTENTIAL FOR A FEW
   STORM/BOUNDARY INTERACTIONS.
   
   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 24015.
   
   
   ...THOMPSON

   SEL2
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 662
   NWS STORM PREDICTION CENTER NORMAN OK
   850 PM CDT SUN JUL 6 2008
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          SOUTHWEST AND SOUTH CENTRAL NEBRASKA
   
   EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 850 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 45
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 25 MILES WEST
   NORTHWEST OF IMPERIAL NEBRASKA TO GRAND ISLAND NEBRASKA.  FOR A
   COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
   UPDATE (WOUS64 KWNS WOU2).
   
   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 660...WW 661...
   
   DISCUSSION...THE INTERACTION OF MERGING OUTFLOWS AND A STALLED FRONT
   ACROSS SRN NEB WILL SUPPORT ADDITIONAL THUNDERSTORM DEVELOP THROUGH
   THE OVERNIGHT HOURS.  THUNDERSTORM COVERAGE/INTENSITY WILL BE AIDED
   BY THE APPROACH OF A WEAK SHORTWAVE TROUGH FROM THE SW AND WARM
   ADVECTION ON THE NOSE OF A DEVELOPING LLJ IN KS.  MODERATE
   INSTABILITY AND EFFECTIVE BULK SHEAR OF 35-40 KT ON THE COOL SIDE OF
   THE STALLED FRONT SHOULD BE SUFFICIENT FOR ORGANIZED STORM
   CLUSTERS...AND PERHAPS SUPERCELLS.  LARGE HAIL AND DAMAGING WINDS
   WILL BE THE MAIN THREATS...THOUGH AN ISOLATED TORNADO CANNOT BE
   RULED OUT GIVEN THE MOIST BOUNDARY LAYER AND POTENTIAL FOR A FEW
   STORM/BOUNDARY INTERACTIONS.
   
   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 24015.
   
   
   ...THOMPSON

   WOUS64 KWNS 070146
   WOU2
   
   BULLETIN - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 662
   NWS STORM PREDICTION CENTER NORMAN OK
   850 PM CDT SUN JUL 6 2008
   
   SEVERE THUNDERSTORM WATCH 662 IS IN EFFECT UNTIL 300 AM CDT
   FOR THE FOLLOWING LOCATIONS
   
   NEC001-019-029-041-047-061-063-065-073-077-079-083-085-093-099-
   101-111-113-117-135-137-163-175-181-070800-
   /O.NEW.KWNS.SV.A.0662.080707T0150Z-080707T0800Z/
   
   NE 
   .    NEBRASKA COUNTIES INCLUDED ARE
   
   ADAMS                BUFFALO             CHASE               
   CUSTER               DAWSON              FRANKLIN            
   FRONTIER             FURNAS              GOSPER              
   GREELEY              HALL                HARLAN              
   HAYES                HOWARD              KEARNEY             
   KEITH                LINCOLN             LOGAN               
   MCPHERSON            PERKINS             PHELPS              
   SHERMAN              VALLEY              WEBSTER             
   
   
   ATTN...WFO...GID...LBF...
   
   
   

   SAW2 
   WW 662 SEVERE TSTM NE 070150Z - 070800Z
   AXIS..45 STATUTE MILES NORTH AND SOUTH OF LINE..
   25WNW IML/IMPERIAL NE/ - GRI/GRAND ISLAND NE/
   ..AVIATION COORDS.. 40NM N/S /49ESE SNY - 25S OBH/
   HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
   MAX TOPS TO 500. MEAN STORM MOTION VECTOR 24015.
   
   LAT...LON 41310205 41619831 40319831 40000205
   
   THIS IS AN APPROXIMATION TO THE WATCH AREA.  FOR A
   COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
   FOR WOU2.
   

Watch 662 Status Report Messages:

STATUS REPORT #2 ON WW 662

VALID 070450Z - 070540Z

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 5 N GRI TO
30 W LBF TO 55 WNW LBF.

..SPC..07/07/08

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

&&

STATUS REPORT FOR WS 662 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

NEC041-077-093-111-113-117-163-175-070540-

NE 
.    NEBRASKA COUNTIES INCLUDED ARE

CUSTER		     GREELEY		 HOWARD 	     
LINCOLN 	     LOGAN		 MCPHERSON	     
SHERMAN 	     VALLEY		 
$$


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 662

VALID 070420Z - 070540Z

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 E MCK TO
25 SW LBF TO 50 ENE SNY.

FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1708

..SPC..07/07/08

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

&&

STATUS REPORT FOR WS 662 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

NEC001-019-041-047-061-063-065-073-077-079-083-093-099-101-111-
113-117-137-163-175-181-070540-

NE 
.    NEBRASKA COUNTIES INCLUDED ARE

ADAMS		     BUFFALO		 CUSTER 	     
DAWSON		     FRANKLIN		 FRONTIER	     
FURNAS		     GOSPER		 GREELEY	     
HALL		     HARLAN		 HOWARD 	     
KEARNEY 	     KEITH		 LINCOLN	     
LOGAN		     MCPHERSON		 PHELPS 	     
SHERMAN 	     VALLEY		 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.
$$

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.