

000 

WWUS20 KWNS 022041

SEL3

SPC WW 022041

COZ000-KSZ000-NEZ000-030300-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 423

NWS STORM PREDICTION CENTER NORMAN OK

245 PM MDT MON JUN 2 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       EASTERN COLORADO

       WESTERN KANSAS

       SOUTHWEST NEBRASKA



EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 245 PM UNTIL 900

PM MDT.



HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70

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



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 50

STATUTE MILES EAST AND WEST OF A LINE FROM 60 MILES NORTH OF

GOODLAND KANSAS TO 45 MILES SOUTH SOUTHWEST OF GARDEN CITY

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

WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).



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 420...WW 421...



DISCUSSION...SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP NEAR

THE CO/KS BORDER THIS AFTERNOON...ALONG WEST EDGE OF MOIST/UNSTABLE

AIRMASS.  THESE STORMS WILL TRACK SLOWLY EASTWARD INTO HIGHER

THETA-E AIR.  GIVEN STRONG EFFECTIVE VERTICAL SHEAR...SUPERCELLS

CAPABLE OF LARGE HAIL AND DAMAGING WINDS WILL BE POSSIBLE.



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 500. MEAN STORM

MOTION VECTOR 27030.





...HART

