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564 

WWUS20 KWNS 210044

SEL7

SPC WW 210044

KSZ000-NEZ000-210700-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 527

NWS STORM PREDICTION CENTER NORMAN OK

740 PM CDT MON JUN 20 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       NORTH CENTRAL KANSAS

       SOUTH CENTRAL NEBRASKA



EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 740 PM UNTIL

200 AM 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 90 STATUTE

MILES EITHER SIDE OF A LINE FROM 30 MILES NORTHWEST OF KEARNEY

NEBRASKA TO 70 MILES SOUTH OF HASTINGS NEBRASKA.  FOR A COMPLETE

DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE

(WOUS64 KWNS WOU7).



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 524...WW 525...WW 526...



DISCUSSION...TSTMS WITH THE POTENTIAL FOR A FEW TORNADOES AND LARGE

HAIL MAY PERSIST IN NE QUADRANT OF STRONG UPR VORT NOW NEAR HLC.

DEVELOPMENT MAY FOCUS ALONG STNRY BOUNDARY EXTENDING WSW/ENE ACROSS

S CNTRL NEB...BUT ALSO FARTHER E IN ZONE OF GREATER LOW LVL MOISTURE

AHEAD OF WEAK COLD FRONT IMMEDIATELY AHEAD OF THE VORT OVER N CNTRL

KS.  STORM MOTION MAY BE ERRATIC GIVEN LARGE SPATIAL VARIATION OF

WIND FIELD NEAR VORT...AND GIVEN PRESENCE OF LOW LVL BOUNDARIES THAT

WILL FORCE PROPAGATION ALONG SAME.



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 20015.





...CORFIDI

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