National Weather Service Raw Text Product

000 
WWUS20 KWNS 021955
SEL0  
SPC WW 021955
ARZ000-LAZ000-MSZ000-030200-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 210 
NWS STORM PREDICTION CENTER NORMAN OK 
255 PM CDT FRI MAY 2 2003

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

       SOUTHERN ARKANSAS
       NORTHERN LOUISIANA
       NORTHWEST AND NORTH CENTRAL MISSISSIPPI

EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 255 PM UNTIL 900
PM CDT.

HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 75 STATUTE MILES
NORTH AND SOUTH OF A LINE FROM 25 MILES EAST SOUTHEAST OF OXFORD
MISSISSIPPI TO 15 MILES WEST NORTHWEST OF SHREVEPORT LOUISIANA.

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 207...WW 208...WW 209...


DISCUSSION...AIR MASS IS VERY UNSTABLE AHEAD OF COLD FRONT NOW
MOVING INTO SRN AR/NRN MS.  18Z SOUNDING FROM SHV INDICATED SOME
CAPPING WHICH HAS INHIBITED DEVELOPMENT THUS FAR.  HOWEVER...FURTHER
HEATING AND CONVERGENCE INVOF FRONT IS EXPECTED TO OVERCOME CAP AND
SUPPORT VIGOROUS DEEP MOIST CONVECTION ALONG AND SOUTH OF THE FRONT
THROUGH THE EARLY EVENING.  PRIMARY THREATS WILL BE FROM DAMAGING
WINDS AND LARGE HAIL.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 28020.


...EVANS

330,0890 312,0940 333,0940 351,0890