SPC Severe Thunderstorm Watch 203

WW 203 SEVERE TSTM KS NM OK TX 292210Z – 300600Z


URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 203
NWS STORM PREDICTION CENTER NORMAN OK
510 PM CDT SUN APR 29 2012

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

       SOUTHWEST KANSAS
       FAR NORTHEAST NEW MEXICO
       FAR NORTHWEST OKLAHOMA AND THE OKLAHOMA PANHANDLE
       NORTHERN TEXAS PANHANDLE

EFFECTIVE THIS SUNDAY AFTERNOON AND MONDAY MORNING FROM 510 PM
UNTIL 100 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 95
STATUTE MILES EAST AND WEST OF A LINE FROM 30 MILES NORTH
NORTHEAST OF DODGE CITY KANSAS TO 50 MILES EAST SOUTHEAST OF
CLAYTON NEW MEXICO.  FOR A COMPLETE DEPICTION OF THE WATCH SEE
THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).

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...BAND OF TSTMS IN SE CO/NE NM APPEARS TO BE ASSOCIATED
WITH WSW-ENE MID LVL MOISTURE AXIS ROUNDING BASE OF NRN HI PLNS UPR
TROUGH.  AS THE MOIST AXIS CONTINUES EWD AND ASSOCIATED STORMS
DEVELOP STRONGER COLD POOLS...STORMS MAY SUFFICIENTLY STRENGTHEN TO
POSE A THREAT FOR LOCALLY DMGG WIND AND SVR HAIL GIVEN STEEP LOW LVL
LAPSE RATES AND INCREASING SLY LOW LVL INFLOW WITH EWD EXTENT.

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 450. MEAN STORM
MOTION VECTOR 26025.


...CORFIDI

via SPC Forecast Products http://www.spc.noaa.gov/products/watch/ww0203.html