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552 

WWUS20 KWNS 221832

SEL4

SPC WW 221832

COZ000-KSZ000-230200-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 74

NWS STORM PREDICTION CENTER NORMAN OK

135 PM CDT THU APR 22 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       MUCH OF EASTERN COLORADO

       PARTS OF WESTERN KANSAS



EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 135 PM UNTIL

900 PM CDT.



TORNADOES...HAIL TO 2.5 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 95 STATUTE

MILES EAST AND WEST OF A LINE FROM 35 MILES EAST NORTHEAST OF

AKRON COLORADO TO 30 MILES EAST OF ELKHART KANSAS.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU4).



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.



DISCUSSION...THUNDERSTORMS WILL INCREASE IN NUMBER AND INTENSITY

THRU THE AFTERNOON ACROSS THE WATCH AS AIR MASS CONTINUES TO

DESTABILIZE.  FOCUS FOR SEVERE STORMS EXPECTED VICINITY WARM FRONT

LIFTING SLOWLY NWD THRU SWRN KS INTO ERN CO.  LOW LEVEL SHEAR WILL

INCREASE AS SURFACE LOW DEEPENS  SERN CO SUPPORTING SUPERCELLS

INCLUDING A THREAT OF TORNADO'S AND LARGE HAIL.



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

450. MEAN STORM MOTION VECTOR 22025.





...HALES

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