

282 

WWUS20 KWNS 162303

SEL3

SPC WW 162303

KSZ000-NEZ000-170500-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 623

NWS STORM PREDICTION CENTER NORMAN OK

505 PM MDT MON AUG 16 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       NORTHWEST KANSAS

       SOUTHWEST NEBRASKA AND THE EASTERN NEBRASKA PANHANDLE



EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 505 PM UNTIL

1100 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 45

STATUTE MILES EAST AND WEST OF A LINE FROM 40 MILES NORTHEAST OF

ALLIANCE NEBRASKA TO 30 MILES SOUTH OF GOODLAND KANSAS.  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 619...WW 620...WW

621...WW 622...



DISCUSSION...SCATTERED THUNDERSTORMS ACROSS WRN NEB/NE CO SHOULD

CONTINUE TO SPREAD EWD THROUGH THE EVENING IN ADVANCE OF A MIDLEVEL

TROUGH OVERSPREADING WY/NW CO.  A COUPLE OF CLUSTERS SHOULD EVOLVE

FROM THE ONGOING ACTIVITY...ESPECIALLY FROM NE CO INTO NW KS/SW

NEB...WHERE THE STRONGER INSTABILITY AND LOW-LEVEL STORM INFLOW WILL

BE MAINTAINED INTO EARLY TONIGHT.  A FEW DAMAGING WIND AND LARGE

HAIL EVENTS WILL BE POSSIBLE.



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 500. MEAN STORM

MOTION VECTOR 26020.





...THOMPSON



665 

WWUS20 KWNS 162303

SEL3

SPC WW 162303

KSZ000-NEZ000-170500-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 623...RESENT

NWS STORM PREDICTION CENTER NORMAN OK

505 PM MDT MON AUG 16 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       NORTHWEST KANSAS

       SOUTHWEST NEBRASKA AND THE EASTERN NEBRASKA PANHANDLE



EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 505 PM UNTIL

1100 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 45

STATUTE MILES EAST AND WEST OF A LINE FROM 40 MILES NORTHEAST OF

ALLIANCE NEBRASKA TO 30 MILES SOUTH OF GOODLAND KANSAS.  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 619...WW 620...WW

621...WW 622...



DISCUSSION...SCATTERED THUNDERSTORMS ACROSS WRN NEB/NE CO SHOULD

CONTINUE TO SPREAD EWD THROUGH THE EVENING IN ADVANCE OF A MIDLEVEL

TROUGH OVERSPREADING WY/NW CO.  A COUPLE OF CLUSTERS SHOULD EVOLVE

FROM THE ONGOING ACTIVITY...ESPECIALLY FROM NE CO INTO NW KS/SW

NEB...WHERE THE STRONGER INSTABILITY AND LOW-LEVEL STORM INFLOW WILL

BE MAINTAINED INTO EARLY TONIGHT.  A FEW DAMAGING WIND AND LARGE

HAIL EVENTS WILL BE POSSIBLE.



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 500. MEAN STORM

MOTION VECTOR 26020.





...THOMPSON

