

000 

WWUS20 KWNS 041839

SEL8

SPC WW 041839

COZ000-KSZ000-NEZ000-050200-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 448

NWS STORM PREDICTION CENTER NORMAN OK

1240 PM MDT WED JUN 4 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       NORTHEAST COLORADO

       NORTHWEST KANSAS

       SOUTHWEST NEBRASKA



EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 1240 PM UNTIL

800 PM MDT.



TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 60 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 20 MILES NORTH OF DENVER

COLORADO TO 25 MILES NORTHEAST OF MCCOOK NEBRASKA.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU8).



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 446...WW 447...



DISCUSSION...SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS

AFTERNOON ALONG THE MOUNTAINS OF CENTRAL CO...AND ALONG WEAK SURFACE

BOUNDARY EXTENDING EASTWARD INTO PARTS OF NORTHWEST KS/SOUTHWEST

NEB.  EASTERLY LOW LEVEL WINDS IN THIS REGION COUPLED WITH STRONG

WESTERLY FLOW ALOFT WILL PROMOTE SUPERCELL STORMS CAPABLE OF LARGE

HAIL...DAMAGING WINDS...AND ISOLATED TORNADOES.



AVIATION...TORNADOES AND 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 25030.





...HART

