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WWUS20 KWNS 030129

SEL5

SPC WW 030129

NEZ000-030700-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 105

NWS STORM PREDICTION CENTER NORMAN OK

825 PM CDT MON APR 2 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       CENTRAL AND EASTERN NEBRASKA



EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 825 PM UNTIL

200 AM CDT.



HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80

MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 85

STATUTE MILES EAST AND WEST OF A LINE FROM 20 MILES NORTHEAST OF

NORFOLK NEBRASKA TO 25 MILES SOUTH OF HASTINGS NEBRASKA.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU5).



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 104...



DISCUSSION...CNTRL NEB MCS WITH EMBEDDED SUSTAINED STORMS/POSSIBLE

SUPERCELLS EXPECTED TO CONTINUE GENERALLY E/ESE AT 40 KTS.  SETUP

APPEARS FAVORABLE FOR CONTINUED STRONG GUST PRODUCTION GIVEN

MODERATE UNIDIRECTIONAL WLY CLOUD LAYER FLOW...LIGHT ELY COMPONENT

AT LOW LEVELS...AND SUBSTANTIAL LOW TO MID LEVEL DEW POINT

DEPRESSIONS.  FORWARD-PROPAGATION COMPONENT OF OVERALL SYSTEM MOTION

MAY BECOME A BIT MORE SELY LATER THIS EVENING AS SQLN ENCOUNTERS

STRENGTHENING/ MOISTENING SSWLY LLJ.



AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT

TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM

MOTION VECTOR 29040.





...CORFIDI

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