

851 

WWUS20 KWNS 072347

SEL2

SPC WW 072347

NEZ000-080500-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 862

NWS STORM PREDICTION CENTER NORMAN OK

645 PM CDT FRI OCT 7 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTH CENTRAL AND EAST CENTRAL NEBRASKA



EFFECTIVE THIS FRIDAY NIGHT FROM 645 PM UNTIL MIDNIGHT 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 EAST AND WEST OF A LINE FROM 35 MILES WEST NORTHWEST OF

NORFOLK NEBRASKA TO 55 MILES SOUTH SOUTHWEST OF KEARNEY NEBRASKA.

 FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU2).



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 861...



DISCUSSION...TO THE IMMEDIATE EAST OF A NORTHEAST-SOUTHWEST ORIENTED

FRONTAL BOUNDARY...SCATTERED STRONG/SEVERE TSTMS ARE LIKELY TO

CONTINUE TO DEVELOP/QUICKLY MOVE NORTHEASTWARD THIS EVENING ACROSS

PORTIONS OF CENTRAL/EASTERN NEB. WHILE THE BOUNDARY LAYER IS NOT

STRONGLY UNSTABLE...STRENGTHENING DEEP LAYER/LOW LEVEL SHEAR THIS

EVENING WILL SUPPORT EMBEDDED/TRANSIENT SUPERCELLS. A FEW TORNADOES

COULD OCCUR MAINLY THROUGH EARLY/MID EVENING...WITH SEVERE HAIL/WIND

POSSIBLE AS WELL.



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

500. MEAN STORM MOTION VECTOR 23035.





...GUYER/THOMPSON

