Friday, August 26, 2011

MESO: Mesoscale Discussion 2063

ACUS11 KWNS 270307
SWOMCD
SPC MCD 270306
VAZ000-NCZ000-SCZ000-270430-

MESOSCALE DISCUSSION 2063
NWS STORM PREDICTION CENTER NORMAN OK
1006 PM CDT FRI AUG 26 2011

AREAS AFFECTED...SE VA...ERN NC

CONCERNING...TORNADO WATCH 809...

VALID 270306Z - 270430Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 809 CONTINUES.

THE TORNADO THREAT WILL LIKELY SPREAD NWD INTO NE NC AND SE VA LATE
THIS EVENING. A TORNADO WATCH IS BEING CONSIDERED AND SHOULD BECOME
NECESSARY.

THE CENTER OF HURRICANE IRENE IS LOCATED ABOUT 180 STATUTE MILES
SOUTH OF CAPE HATTERAS. THE OUTERMOST RAINSHIELD IS CURRENTLY NEAR
THE NE NC-SE VA STATE-LINE AND WILL CONTINUE TO MOVE NWD INTO SERN
VA OVER THE NEXT FEW HOURS. SEVERAL ROTATING CELLS ARE LOCATED
WITHIN THE BAND OVER NERN NC WHERE FORECAST SOUNDINGS LATE THIS
EVENING SHOW 0-1 KM SHEAR VALUES INCREASING TO ABOVE 40 KT WITH
PRECIPITABLE WATER IN THE 2.20 TO 2.40 INCH RANGE. IN ADDITION...A
POCKET OF MODERATE INSTABILITY EXISTS ACROSS SERN VA WHERE MLCAPE
VALUES ARE IN THE 1000 TO 1500 J/KG RANGE. THIS ENVIRONMENT SHOULD
SUPPORT A THREAT OF TORNADOES WITH ROTATING STORMS THAT MOVE INLAND
LATE THIS EVENING. THE THREAT SHOULD CONTINUE THROUGH THE OVERNIGHT
PERIOD AS THE CENTER OF IRENE APPROACHES THE COAST.

..BROYLES.. 08/27/2011

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

ATTN...WFO...AKQ...MHX...RAH...ILM...

LAT...LON 37487554 37797664 37767724 37527773 37177802 36537836
35937877 35487888 34507882 33927866 33517819 33397778
33607678 34197598 34617560 35067509 35627494 36567506
37067526 37487554

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