MESO: Mesoscale Discussion 1395

ACUS11 KWNS 011649
SWOMCD
SPC MCD 011648
VAZ000-MDZ000-DCZ000-WVZ000-011745-

MESOSCALE DISCUSSION 1395
NWS STORM PREDICTION CENTER NORMAN OK
1148 AM CDT WED JUL 01 2009

AREAS AFFECTED...MUCH OF VA AND SRN MD

CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE

VALID 011648Z - 011745Z

CONVECTION WAS DEVELOPING OVER THE HIGHER TERRAIN OF SERN WV AND
SHOULD SPREAD ENEWD ACROSS MUCH OF VA AND EVENTUALLY INTO SRN MD
LATER THIS AFTERNOON. WW IS POSSIBLE WITH THE NEXT COUPLE OF HOURS
AS STORMS INTENSIFY AND INCREASE IN COVERAGE.

AN UPPER IMPULSE WAS LOCATED OVER WV AT 16Z AND IS FORECAST TO SHIFT
RAPIDLY ENEWD THROUGH THE DAY. AT THE SURFACE...A COLD FRONT WAS
MOVING EWD FROM WV/ERN KY AND WILL MOVE INTO VA THIS AFTERNOON.
ALTHOUGH THE AIR MASS IS NOT PARTICULARLY MOIST...STRONG SOLAR
INSOLATION WILL RAISE TEMPERATURES INTO THE MID AND UPPER 80S BY MID
LATE AFTERNOON. ALTHOUGH INSTABILITY WILL BE WEAK...DEEP LAYER SHEAR
AT 30 TO 40 KT SHOULD BE SUPPORTIVE OF ORGANIZED STORMS. GIVEN STEEP
LAPSE RATES IN THE LOWER 3 KM AND MODERATELY STRONG WLY WINDS ABOVE
THE BOUNDARY LAYER...WIND DAMAGE WOULD BE THE PRIMARY
THREAT...ESPECIALLY IF STORMS CAN ORGANIZE INTO SHORT LINES.

..IMY.. 07/01/2009

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

ATTN...WFO...PHI...AKQ...LWX...RNK...

LAT...LON 38777904 38847598 38217569 37747570 37437591 36957708
36747778 36557873 36637969 36938012 37368013 38097991
38777904

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
To unsubscribe from WX-STORM send e-mail to LISTSERV@LISTSERV.ILLINOIS.EDU with
"unsub wx-storm" in the body of your message. For more information write cnovy@cox.net.