MESO: Mesoscale Discussion 0749

ACUS11 KWNS 072334
SWOMCD
SPC MCD 072333
NCZ000-VAZ000-SCZ000-080030-

MESOSCALE DISCUSSION 0749
NWS STORM PREDICTION CENTER NORMAN OK
0633 PM CDT THU MAY 07 2009

AREAS AFFECTED...EASTERN NC/NORTHEAST SC INTO FAR SOUTHEAST VA

CONCERNING...SEVERE THUNDERSTORM WATCH 259...

VALID 072333Z - 080030Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 259
CONTINUES.

SEVERE THUNDERSTORM WATCH 259 CONTINUES UNTIL 05Z ACROSS EASTERN
NC/NORTHEAST SC.

PRIMARY SEVERE THREAT CONTINUES WITH PERSISTENT SUPERCELLS ACROSS
COASTAL NC INTO FAR SOUTHEAST VA...WITH CONTINUED SEVERE HAIL AND
ISOLATED/BRIEF TORNADO POTENTIAL. WITH MOIST SOUTHERLY FLOW AT THE
SURFACE...WSR-88D VWP DATA FROM MOREHEAD CITY SUGGESTS AS MUCH AS
150-200 M2/S2 OF 0-1 KM SRH...WHICH WOULD SUPPORT THE POSSIBILITY AN
ADDITIONAL ISOLATED/BRIEF TORNADO MAINLY OVER THE NEXT HOUR OR SO
ACROSS COASTAL NC/PERHAPS FAR SOUTHEAST VA. OTHERWISE...EVEN WITH A
COOLING BOUNDARY LAYER THIS EVENING...SOME ADDITIONAL UPSWING IN
TSTM COVERAGE WITH A SEVERE HAIL/DAMAGING WIND THREAT COULD OCCUR
FARTHER WEST IN ASSOCIATION WITH A FAST MOVING MID LEVEL IMPULSE
CURRENTLY CROSSING THE SOUTH-CENTRAL APPALACHIANS PER WATER VAPOR
IMAGERY.

..GUYER.. 05/07/2009

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...AKQ...MHX...RAH...ILM...CHS...CAE...

LAT...LON 35787814 37097676 36857575 34647550 33207961 34807986
35787814

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