

605 

WWUS20 KWNS 231818

SEL1

SPC WW 231818

NEZ000-240100-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 81

NWS STORM PREDICTION CENTER NORMAN OK

120 PM CDT FRI APR 23 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       A LARGE PART OF NEBRASKA



EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 120 PM UNTIL 800

PM CDT.



TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 45 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 70 MILES WEST SOUTHWEST OF

MULLEN NEBRASKA TO 35 MILES SOUTH SOUTHEAST OF COLUMBUS NEBRASKA.

 FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU1).



REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR

TORNADOES AND 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.



OTHER WATCH INFORMATION...CONTINUE...WW 79...WW 80...



DISCUSSION...BANDS OF THUNDERSTORMS DEVELOPING ON THE NORTHEAST

QUADRANT OF THE DEEP SURFACE AND UPPER LOW OVER ERN CO. SUFFICIENT

MOISTURE AND INSTABILITY MOVING WWD TO SUPPORT LOW TOPPED

SUPERCELLS.  TORNADOES WILL BE POSSIBLE WITH ANY SUPERCELL ALONG

WITH LARGE HAIL.



AVIATION...TORNADOES AND 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

400. MEAN STORM MOTION VECTOR 15020.





...HALES

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