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417 

WWUS20 KWNS 260038

SEL0

SPC WW 260038

NEZ000-260700-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 220

NWS STORM PREDICTION CENTER NORMAN OK

735 PM CDT SAT MAY 25 2013



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  SOUTHWEST AND CENTRAL NEBRASKA



* EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 735 PM

  UNTIL 200 AM CDT.



* PRIMARY THREATS INCLUDE...

  SEVERAL LARGE HAIL EVENTS WITH A FEW VERY LARGE HAIL EVENTS TO 2

    INCHES IN DIAMETER POSSIBLE

  A FEW DAMAGING WIND GUSTS TO 70 MPH POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 25 MILES SOUTH

SOUTHWEST OF NORTH PLATTE NEBRASKA TO 50 MILES SOUTHEAST OF

BURWELL NEBRASKA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).



PRECAUTIONARY/PREPAREDNESS ACTIONS...



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 217...WW 218...WW 219...



DISCUSSION...SCATTERED TSTMS WILL LIKELY TO CONTINUE DEVELOP

EAST-NORTHEASTWARD AND POTENTIALLY EXPAND IN COVERAGE ACROSS

PORTIONS OF SOUTHWEST/CENTRAL NEB THIS EVENING. AIDED BY AN

INCREASING SOUTHERLY LOW LEVEL JET...TSTMS ARE LIKELY TO BE

ESPECIALLY FOCUSED ALONG AND EITHER SIDE OF A REMNANT OUTFLOW

BOUNDARY FROM LAST NIGHT/EARLY DAY STORMS. BOUTS OF SEVERE

HAIL/DAMAGING WINDS WILL BE POSSIBLE. SOME TORNADO THREAT MIGHT ALSO

BE POSSIBLE FOR AREAS SUCH AS CENTRAL NEB THIS EVENING IN VICINITY

OF THE OUTFLOW BOUNDARY...BUT THE OVERALL POTENTIAL APPEARS LIMITED

AT THIS TIME.



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 24025.





...GUYER

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