MESO: Mesoscale Discussion 1600

ACUS11 KWNS 171942
SWOMCD
SPC MCD 171941
VAZ000-NCZ000-172115-

MESOSCALE DISCUSSION 1600
NWS STORM PREDICTION CENTER NORMAN OK
0241 PM CDT FRI JUL 17 2009

AREAS AFFECTED...SERN VA INTO FAR NERN NC

CONCERNING...TORNADO WATCH 594...

VALID 171941Z - 172115Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 594 CONTINUES.

THE THREAT FOR SEVERE STORMS CAPABLE OF DAMAGING WINDS...HAIL AND
PERHAPS A TORNADO OR TWO CONTINUES OVER CNTRL/ERN PORTIONS OF WW
AREA.

SHORT BOWING MCS WITH EMBEDDED SUPERCELL STRUCTURES CONTINUES EWD
THROUGH SERN VA THIS AFTERNOON AT 30-35 KT. AS OF 1930Z...THE
LEADING EDGE OF THE STRONGEST STORMS EXTENDED FROM SURRY THROUGH
ISLE OF WIGHT INTO SOUTHAMPTON COUNTIES VA. LATEST MESOANALYSIS
INDICATES THAT THIS BOWING COMPLEX REMAINS COLOCATED WITH A MESOLOW
WHICH IS MAINTAINING A CORRIDOR OF PRESSURE FALLS AND BACKED SURFACE
WINDS TO THE IMMEDIATE SE OF TSTM COMPLEX. THIS STRONGER LOW-LEVEL
SHEAR COUPLED WITH MLCAPE OF 1000-2000 J/KG AND 40-45 KT OF
EFFECTIVE BULK SHEAR SHOULD SERVE TO MAINTAIN BOWING SYSTEM AND
EMBEDDED SUPERCELLS WITH THE THREAT FOR DAMAGING WINDS...HAIL AND
ISOLATED TORNADOES.

..MEAD.. 07/17/2009

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

ATTN...WFO...AKQ...

LAT...LON 36527774 37297719 37687617 37807540 36847599 36397655
36187693 36527774

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