

625 

WWUS20 KWNS 142213

SEL4

SPC WW 142213

IAZ000-KSZ000-NEZ000-SDZ000-150500-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 294

NWS STORM PREDICTION CENTER NORMAN OK

510 PM CDT SAT JUN 14 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* TORNADO WATCH FOR PORTIONS OF

  NORTHWEST IOWA

  NORTH CENTRAL KANSAS

  CENTRAL AND NORTHEAST NEBRASKA

  EXTREME SOUTHEAST SOUTH DAKOTA



* EFFECTIVE THIS SATURDAY AFTERNOON FROM 510 PM UNTIL MIDNIGHT

  CDT.



* PRIMARY THREATS INCLUDE...

  A FEW TORNADOES POSSIBLE

  SCATTERED LARGE HAIL LIKELY WITH ISOLATED VERY LARGE HAIL EVENTS

    TO 3 INCHES IN DIAMETER POSSIBLE

  SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 55 STATUTE

MILES EAST AND WEST OF A LINE FROM 70 MILES WEST SOUTHWEST OF

CONCORDIA KANSAS TO 55 MILES EAST NORTHEAST OF YANKTON SOUTH

DAKOTA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED

WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).



PRECAUTIONARY/PREPAREDNESS ACTIONS...



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 293...



DISCUSSION...THUNDERSTORM DEVELOPMENT IS EXPECTED ALONG THE SURFACE

FRONT/WIND SHIFT BY 23Z FROM NRN KS INTO CENTRAL NEB AS CONVECTIVE

INHIBITION WEAKENS.  THE INITIAL STORM ENVIRONMENT WILL FAVOR

SUPERCELLS WITH LARGE/VERY LARGE HAIL AND SOME DAMAGING WIND

RISK...IN AN ENVIRONMENT WITH STEEP LAPSE RATES BUT SOMEWHAT LARGE

TEMPERATURE-DEWPOINT SPREADS IN NRN KS/SRN NEB.  A FEW STORMS MAY

MOVE INTO THE INITIALLY RICHER MOISTURE AND STRONGER LOW-LEVEL

TOWARD NE NEB...OR REMAIN DISCRETE INTO LATE EVENING AND ENCOUNTER

THE STRENGTHENING LOW-LEVEL SHEAR AND SOMEWHAT RICHER MOISTURE

TOWARD US HWY 81 IN SRN NEB/NRN KS.



AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL

SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

550. MEAN STORM MOTION VECTOR 25025.





...THOMPSON

