

858 

WWUS20 KWNS 032153

SEL2

SPC WW 032153

KSZ000-NEZ000-040500-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 542...RESENT

NWS STORM PREDICTION CENTER NORMAN OK

455 PM CDT FRI JUL 3 2009



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       NORTHERN KANSAS

       CENTRAL AND SOUTHEAST NEBRASKA



EFFECTIVE THIS FRIDAY AFTERNOON FROM 455 PM UNTIL MIDNIGHT 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 70

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 40 MILES NORTH OF

IMPERIAL NEBRASKA TO 5 MILES EAST NORTHEAST OF FALLS CITY

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 540...WW 541...



DISCUSSION...SLY LLJ WILL INCREASE ACROSS NERN KS THIS EVENING AHEAD

OF SHORTWAVE TROUGH SHIFTING ACROSS THE CENTRAL HIGH PLAINS.  STORMS

WILL BE CAPABLE OF LARGE HAIL AND ISOLATED DAMAGING WINDS...WITH

OVERALL EVOLUTION INTO ONE OR MORE STRONG TO SEVERE MCSS ALONG NOSE

OF LLJ BY THE LATE EVENING.



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 26020.





...EVANS



395 

WWUS20 KWNS 032153

SEL2

SPC WW 032153

KSZ000-NEZ000-040500-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 542

NWS STORM PREDICTION CENTER NORMAN OK

455 PM CDT FRI JUL 3 2009



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       NORTHERN KANSAS

       CENTRAL AND SOUTHEAST NEBRASKA



EFFECTIVE THIS FRIDAY AFTERNOON FROM 455 PM UNTIL MIDNIGHT 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 70

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 40 MILES NORTH OF

IMPERIAL NEBRASKA TO 5 MILES EAST NORTHEAST OF FALLS CITY

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 540...WW 541...



DISCUSSION...SLY LLJ WILL INCREASE ACROSS NERN KS THIS EVENING AHEAD

OF SHORTWAVE TROUGH SHIFTING ACROSS THE CENTRAL HIGH PLAINS.  STORMS

WILL BE CAPABLE OF LARGE HAIL AND ISOLATED DAMAGING WINDS...WITH

OVERALL EVOLUTION INTO ONE OR MORE STRONG TO SEVERE MCSS ALONG NOSE

OF LLJ BY THE LATE EVENING.



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 26020.





...EVANS

