SWOMCD
SPC MCD 062259
SDZ000-NEZ000-070030-
MESOSCALE DISCUSSION 1218
NWS STORM PREDICTION CENTER NORMAN OK
0559 PM CDT TUE JUL 06 2010
AREAS AFFECTED...SCNTRL/SERN SD
CONCERNING...TORNADO WATCH 444...
VALID 062259Z - 070030Z
THE SEVERE WEATHER THREAT FOR TORNADO WATCH 444 CONTINUES.
SUPERCELL OVER SRN BRULE COUNTY SD CONTINUES TO REMAIN ISOLATED WITH
PREFERENTIAL DEVELOPMENT ALONG SWRN FLANK WITH SLOW OVERALL MOTION
TO THE SSE. THIS CELL APPEARS TO HAVE THE HIGHEST TORNADO POTENTIAL
THROUGH 01Z AS IT MOVES TOWARD CHARLES MIX AND DOUGLAS COUNTIES AMID
40 KTS OF 0-6KM SHEAR...2000 J/KG MLCAPE AND A NARROW ZONE OF
200-300 M2/S2 0-1KM SRH.
OTHERWISE...MORE STORMS WERE BEGINNING TO DEVELOP N OF THE COLD
FRONT OVER CNTRL SD AND WILL PROBABLY CONTINUE TO EVOLVE TO THE SSW
INTO SCNTRL SD AS THE PRIMARY SYNOPTIC UPPER WAVE APPROACHES. THESE
STORMS MAY PRODUCE LARGE HAIL...ALONG WITH VERY HEAVY RAINFALL.
..RACY.. 07/06/2010
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...FSD...ABR...LBF...UNR...
LAT...LON 43530116 44520061 45139964 44939829 44639742 43619718
42939789 43030070 43330128 43530116
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