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MESOSCALE DISCUSSION 0352
NWS STORM PREDICTION CENTER NORMAN OK
1033 AM CDT SUN MAR 31 2013
AREAS AFFECTED...ARKLATEX
CONCERNING...SEVERE THUNDERSTORM WATCH 70...71...
VALID 311533Z - 311630Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
70...71...CONTINUES.
SUMMARY...GUSTY WINDS AND HAIL WILL BE NOTED ALONG SQUALL LINE AS IT
SPREADS SEWD ACROSS THE ARKLATEX.
DISCUSSION...ONGOING SQUALL LINE THAT STRETCHES FROM SRN AR...SWWD
INTO NERN TX IS PROPAGATING SEWD AT ROUGHLY 30-35KT. GIVEN THE SLOW
AIRMASS RECOVERY ACROSS NRN LA IT APPEARS THIS CONVECTION SHOULD BE
MAINTAINED AS IT SPREADS ACROSS INSTABILITY AXIS CHARACTERIZED BY
MUCAPE OF 1000-1500 J/KG. LATEST WDSS MESH DATA SUGGESTS EMBEDDED
HAIL CORES ARE MOSTLY LESS THAN ONE INCH ALTHOUGH OCCASIONALLY
SPIKING TO SEVERE LEVELS AT TIMES. OTHERWISE...ISOLATED SEVERE WIND
GUSTS CAN BE EXPECTED WITH THIS LINEAR MCS AS IT MOVES SEWD.
..DARROW.. 03/31/2013
ATTN...WFO...LZK...SHV...HGX...FWD...
LAT...LON 32029647 32689417 33719243 32389206 31209473 32029647
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