SWOMCD
SPC MCD 032236
GAZ000-SCZ000-ALZ000-040000-
MESOSCALE DISCUSSION 0691
NWS STORM PREDICTION CENTER NORMAN OK
0536 PM CDT SUN MAY 03 2009
AREAS AFFECTED...GA
CONCERNING...SEVERE THUNDERSTORM WATCH 234...235...
VALID 032236Z - 040000Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
234...235...CONTINUES.
DERECHO WAS BEGINNING TO DIMINISH...BUT LAST VESTIGES OF THE BOW
ECHO CONTINUE TO HAVE THE POTENTIAL FOR DMGG WINDS/ISOLD BRIEF
TORNADOES ACROSS ESPECIALLY CNTRL/NRN GA THROUGH 00Z AT LEAST.
STRONGEST TSTMS HAVE BEEN FAVORING A ZONE ACROSS CNTRL/NRN GA WHERE
AIR MASS HEATED THE MOST TODAY AMIDST COMPARATIVELY RICHER BOUNDARY
LAYER MOISTURE THAN FARTHER TO THE S. LINE IS MOVING ROUGHLY 260/40
AND SHOULD REACH THE ERN END OF WW 235 BY 00Z. BY THEN...BOUNDARY
LAYER SHOULD BEGIN TO STABILIZE AND BECOME MORE HOSTILE AT
SUPPORTING WIDESPREAD SVR WEATHER. THERE WILL BE SOME CONTINUING
THREAT OF DMGG WINDS INTO UPSTATE SC LATER THIS EVENING...GENERALLY
SINCE THE LINE OF STORMS WILL CONTINUE NEWD WITHIN A 60 KT MID-LVL
JET CORE. HOWEVER...IT IS NOT YET CLEAR ON WHETHER ANOTHER WW WILL
BE NEEDED.
MEANWHILE...THROUGH 00Z...THREAT FOR DMGG WINDS WILL ACCOMPANY THE
LINE. FFC VWP SAMPLED AROUND 200 M2/S2 0-1KM SRH JUST BEFORE THE
STORMS MOVED THROUGH THE RADAR SITE...AND EMBEDDED ROTATING
COMMA-HEAD FEATURES WILL KEEP THE THREAT FOR AN ISOLD BRIEF TORNADO
ALIVE AS WELL.
..RACY.. 05/03/2009
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...CAE...GSP...FFC...TAE...BMX...
LAT...LON 31308548 32528471 34158481 34868432 34378338 33618214
32418241 31958336 31298421 31308548
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