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WWUS20 KWNS 302253

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SPC WW 302253

KSZ000-OKZ000-TXZ000-010700-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 212

NWS STORM PREDICTION CENTER NORMAN OK

545 PM CDT MON APR 30 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTHWEST KANSAS

       NORTHERN AND WESTERN OKLAHOMA

       THE EASTERN TEXAS PANHANDLE AND NORTHWEST TEXAS



EFFECTIVE THIS MONDAY AFTERNOON AND TUESDAY MORNING FROM 545 PM

UNTIL 200 AM CDT.



TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 75 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 65 STATUTE

MILES EAST AND WEST OF A LINE FROM 60 MILES NORTH NORTHEAST OF

DODGE CITY KANSAS TO 10 MILES SOUTH SOUTHWEST OF CHILDRESS TEXAS.

 FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU2).



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.



OTHER WATCH INFORMATION...CONTINUE...WW 208...WW 209...WW

210...WW 211...



DISCUSSION...WIND PROFILES INVOF TSTMS FORMING ALONG ARCED NW-SE

OUTFLOW BOUNDARY/WARM FRONTAL SEGMENT IN SW KS/NW OK APPEAR

FAVORABLE FOR LOW LVL MESOS/TORNADOES GIVEN RELATIVELY STEEP LOW LVL

LAPSE RATES/MOISTURE AVAILABILITY.  THESE STORMS SHOULD MOVE/DEVELOP

PREFERENTIALLY ESE TO SE ALONG BOUNDARY INTO OK...WHERE OTHER STORMS

MAY FORM IN THE NEXT SEVERAL HOURS.  TORNADO THREAT ALSO MAY

INCREASE A BIT LATER THIS EVE THROUGH MID/LATE EVE IN THE ERN TX

PANHANDLE/NW TX...AS LOW LVL SLY FLOW INCREASES IN RESPONSE TO

DIURNAL CYCLE AND TO CONTINUED EWD MOTION OF NM UPR IMPULSE/BELT OF

30-40 KT WLY 700 MB FLOW.



AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL

SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 65 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

600. MEAN STORM MOTION VECTOR 30020.





...CORFIDI

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