

799 

WWUS20 KWNS 272050

SEL1

SPC WW 272050

COZ000-KSZ000-NEZ000-280300-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 361

NWS STORM PREDICTION CENTER NORMAN OK

350 PM CDT FRI JUN 27 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* TORNADO WATCH FOR PORTIONS OF

  EXTREME EASTERN COLORADO

  WESTERN KANSAS

  SOUTHWEST NEBRASKA



* EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 350 PM UNTIL

  1000 PM CDT.



* PRIMARY THREATS INCLUDE...

  A FEW TORNADOES POSSIBLE

  SCATTERED LARGE HAIL LIKELY WITH ISOLATED VERY LARGE HAIL EVENTS

    TO 2.5 INCHES IN DIAMETER POSSIBLE

  SCATTERED DAMAGING WIND GUSTS TO 70 MPH LIKELY



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 60 STATUTE

MILES EAST AND WEST OF A LINE FROM 45 MILES SOUTH OF GARDEN CITY

KANSAS TO 35 MILES WEST NORTHWEST OF NORTH PLATTE NEBRASKA.  FOR

A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU1).



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 360...



DISCUSSION...STORMS ARE EXPECTED TO DEVELOP AND INCREASE OVER SWRN

NEB AND WRN KS IN RESPONSE TO AN UPPER TROUGH MOVING EWD INTO THE

HIGH PLAINS.  STEEP LAPSE RATES ABOVE THE WEAKENING EML/CAPPING

INVERSION ARE CONTRIBUTING TO A VERY UNSTABLE ENVIRONMENT WITH

MLCAPE OF 2000-3500 J/KG.  STORMS MAY RAPIDLY BECOME SEVERE ONCE THE

CAP IS BROKEN WITH POTENTIAL FOR VERY LARGE HAIL...SEVERE

WINDS...AND SEVERAL TORNADOES WITH STRONGER CELLS.  ACTIVITY MAY

FORM INTO ONE OF MORE CLUSTERS/QLCS STRUCTURES BY EVENING AS STORMS

PROGRESS EWD ACROSS THE AREA.



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

SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE

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

550. MEAN STORM MOTION VECTOR 25025.





...WEISS

