WATCHES: Severe Thunderstorm Watch Number 596

WWUS20 KWNS 092331
SEL6
SPC WW 092331
COZ000-KSZ000-NEZ000-100700-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 596
NWS STORM PREDICTION CENTER NORMAN OK
530 PM MDT MON AUG 9 2010

THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

NORTHEASTERN COLORADO
NORTHWESTERN KANSAS
WESTERN NEBRASKA

EFFECTIVE THIS MONDAY AFTERNOON AND TUESDAY MORNING FROM 530 PM
UNTIL 100 AM 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 100
STATUTE MILES EAST AND WEST OF A LINE FROM 35 MILES SOUTHEAST OF
GOODLAND KANSAS TO 50 MILES NORTH OF MULLEN NEBRASKA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU6).

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 595...

DISCUSSION...TSTMS EXPECTED TO INCREASE IN COVERAGE/INTENSITY ACROSS
PARTS OF THE CNTRL HI PLNS THIS EVE THROUGH EARLY TUE. THIS WILL
OCCUR AS MOIST LOW LVL ELY FLOW SLIGHTLY STRENGTHENS BENEATH AREA OF
ASCENT ASSOCIATED WITH UPR IMPULSE MOVING NNE FROM ERN CO...IN
TANDEM WITH STRONGER UPR IMPULSE IN UT. DEGREE OF SBCAPE AND STEEP
LOW LVL LAPSE RATES SUGGEST POTENTIAL FOR SVR HAIL/WIND DESPITE
MODEST/WEAKLY ORGANIZED WIND FIELD. A TORNADO OR TWO CANNOT BE
RULED OUT. THE LOCATION OF ANY SUCH EVENT WILL... HOWEVER...
REQUIRE ASSISTANCE FROM LOW LVL MESOSCALE FORCING MECHANISMS THAT
ATTM REMAIN UNCERTAIN WITH RESPECT TO LOCATION/LONGEVITY/STRENGTH.

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 550. MEAN STORM
MOTION VECTOR 21030.

...CORFIDI

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