WATCHES: Severe Thunderstorm Watch Number 41

WWUS20 KWNS 020227
SEL1
SPC WW 020227
KSZ000-NEZ000-OKZ000-TXZ000-020900-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 41
NWS STORM PREDICTION CENTER NORMAN OK
925 PM CDT THU APR 1 2010

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

MUCH OF CENTRAL KANSAS
PARTS OF SOUTH CENTRAL NEBRASKA
PARTS OF NORTHWEST OKLAHOMA
PARTS OF EASTERN TEXAS PANHANDLE

EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 925 PM
UNTIL 400 AM CDT.

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 60
STATUTE MILES EAST AND WEST OF A LINE FROM 5 MILES NORTH
NORTHWEST OF GRAND ISLAND NEBRASKA TO 55 MILES SOUTH OF GAGE
OKLAHOMA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1).

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.

DISCUSSION...AS THE STRONG COLD FRONT HAS INTERSECTED THE DRY
LINE...THUNDERSTORMS ARE RAPIDLY DEVELOPING. WITH A VERY STRONG
UPPER TROUGH AND ASSOCIATED WIND FIELD MOVING EWD INTO HIGH
PLAINS...THE MARGINAL MOISTURE/INSTABILITY EXPECTED TO BE SUFFICIENT
FOR A FEW THUNDERSTORMS TO BECOME SEVERE. PRIMARY THREAT WILL BE
LARGE HAIL AND LOCALLY DAMAGING WINDS. GIVEN THE STRENGTH OF THE
SYSTEM THERE IS THE POSSIBILITY OF A FEW ROTATING STORMS ENHANCING
THE SEVERE THREAT PRIOR BECOMING A MORE LINEAR MODE OVERNIGHT AS THE
STORMS MOVE EWD.

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 450. MEAN STORM
MOTION VECTOR 22035.

...HALES

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