

885 

WWUS20 KWNS 012317

SEL3

SPC WW 012317

NEZ000-020500-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 203

NWS STORM PREDICTION CENTER NORMAN OK

520 PM MDT SUN JUN 1 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  WEST CENTRAL NEBRASKA



* EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 520 PM UNTIL

  1100 PM MDT.



* PRIMARY THREATS INCLUDE...

  ISOLATED VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE

  ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 50

STATUTE MILES EAST AND WEST OF A LINE FROM 40 MILES WEST

NORTHWEST OF VALENTINE NEBRASKA TO 20 MILES SOUTHEAST OF IMPERIAL

NEBRASKA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).



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 201...WW 202...



DISCUSSION...THUNDERSTORMS CURRENTLY OVER THE NEBRASKA PANHANDLE

WILL TRACK EAST-SOUTHEASTWARD ACROSS THE WATCH AREA THIS EVENING.

STEEP MID LEVEL LAPSE RATES AND SUFFICIENT EFFECTIVE SHEAR WILL

PROMOTE ORGANIZED STORMS WITH EMBEDDED BOW/SUPERCELL STRUCTURES.

LARGE HAIL AND DAMAGING WINDS APPEAR TO BE THE MAIN THREATS.



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 450. MEAN STORM

MOTION VECTOR 29030.





...HART

