WATCHES: Severe Thunderstorm Watch Number 625

WWUS20 KWNS 202352
SEL5
SPC WW 202352
KSZ000-MOZ000-210700-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 625
NWS STORM PREDICTION CENTER NORMAN OK
650 PM CDT MON AUG 20 2007

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

NORTHEAST AND EAST CENTRAL KANSAS
NORTHWEST AND WEST CENTRAL MISSOURI

EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 650 PM UNTIL
200 AM CDT.

HAIL TO 1.5 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 50 MILES NORTHEAST OF
FALLS CITY NEBRASKA TO 50 MILES SOUTH SOUTHEAST OF MANHATTAN
KANSAS. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED
WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5).

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 621...WW 622...WW
623...WW 624...

DISCUSSION...TSTM CLUSTERS/SUPERCELLS IN SE NEB AND N CNTRL KS
EXPECTED TO MOVE/DEVELOP GENERALLY E AND ESE...RESPECTIVELY...INTO
VERY UNSTABLE AIR ACROSS NE KS/NW MO LATER THIS EVENING. DEEP SHEAR
IS EXPECTED TO LESSEN WITH TIME AND WITH EWD EXTENT. BUT PRESENCE
OF EXISTING STORMS...NOCTURNAL STRENGTHENING OF SWLY LLJ AND VERY
MOIST BOUNDARY LAYER AIR SUGGEST THAT A THREAT WILL EXIST FOR WET
MICROBURSTS AND POSSIBLY SVR HAIL THROUGH EARLY TUESDAY INTO THE LWR
MO VLY.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM
MOTION VECTOR 29025.

..CORFIDI

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