Severe Thunderstorm Watch #51 for Central and Southern MO

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 51
NWS STORM PREDICTION CENTER NORMAN OK
1230 PM CST THU MAR 9 2006

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

NORTHWESTERN ARKANSAS
SOUTHERN AND CENTRAL MISSOURI
EASTERN OKLAHOMA

EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 1230 PM UNTIL
600 PM CST.

HAIL TO 2.5 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 75
STATUTE MILES EAST AND WEST OF A LINE FROM 35 MILES SOUTH
SOUTHEAST OF POTEAU OKLAHOMA TO 25 MILES NORTHWEST OF VICHY
MISSOURI. 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.

OTHER WATCH INFORMATION...CONTINUE...WW 49...WW 50...

DISCUSSION...VERY STEEP LOW-MIDDLE LEVEL LAPSE RATES DEVELOPING WITH
SFC DIABATIC HEATING...BENEATH PRONOUNCED MIDLEVEL THERMAL TROUGH.
THIS WILL SUPPORT MUCAPES 500-1000 J/KG WITH STRONG
DEEP-TROPOSPHERIC SHEAR...WITH POTENTIAL FOR LARGE HAIL.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 350. MEAN STORM
MOTION VECTOR 24035.

...EDWARDS