

355 

WWUS20 KWNS 140258

SEL9

SPC WW 140258

KSZ000-NEZ000-141000-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 659

NWS STORM PREDICTION CENTER NORMAN OK

1000 PM CDT MON SEP 13 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       NORTH CENTRAL AND NORTHEAST KANSAS

       SOUTH CENTRAL AND SOUTHEAST NEBRASKA



EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 1000 PM

UNTIL 500 AM CDT.



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 NORTH AND SOUTH OF A LINE FROM 65 MILES SOUTH

SOUTHWEST OF KEARNEY NEBRASKA TO 10 MILES EAST OF FALLS CITY

NEBRASKA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).



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...THIS SEVERE THUNDERSTORM WATCH REPLACES

TORNADO WATCH NUMBER 656...SEVERE THUNDERSTORM WATCH NUMBER

657...SEVERE THUNDERSTORM WATCH NUMBER 658. WATCH NUMBER 656 657

658 WILL NOT BE IN EFFECT AFTER 1000 PM CDT.



DISCUSSION...SCTD SLIGHTLY ELEVATED TSTMS/POSSIBLE SUPERCELLS WITH A

THREAT FOR HAIL/LOCALLY DMGG WIND MAY OCCUR INVOF W-E OUTFLOW

BOUNDARY OVER NRN KS/SRN NEB THROUGH EARLY TUE AS 25 KT SLY LLJ

PERSISTS IN REGION OF MODERATE MOISTURE/INSTABILITY ON SRN EDGE OF

THE WLYS.



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 27030.





...CORFIDI

