Thursday, December 11, 2008

MESO: Mesoscale Discussion 2457

ACUS11 KWNS 120002
SWOMCD
SPC MCD 120001
NCZ000-VAZ000-120130-

MESOSCALE DISCUSSION 2457
NWS STORM PREDICTION CENTER NORMAN OK
0601 PM CST THU DEC 11 2008

AREAS AFFECTED...EASTERN NC/SOUTHEAST VA

CONCERNING...TORNADO WATCH 952...953...954...

VALID 120001Z - 120130Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH
952...953...954...CONTINUES.

TORNADO WATCH 952 IS EXPIRING AT 00Z. TORNADO WATCHES 953/954
CONTINUE UNTIL 02Z. WHILE SOME TORNADO POTENTIAL CONTINUES ACROSS
FAR EASTERN NC/FAR SOUTHEAST VA...THE OVERALL THREAT SHOULD CONTINUE
TO STEADILY WANE THIS EVENING. EARLY INDICATIONS ARE THAT TORNADO
WATCH 953/954 WILL BE ALLOWED TO EXPIRE AT/BY 02Z...WITH NO
ADDITIONAL WATCHES ANTICIPATED.

LATEST SURFACE ANALYSIS FEATURES A 997 MB SURFACE LOW CONTINUING TO
LIFT NORTHEASTWARD ALONG THE NC MOUNTAINS...WITH A SHARP LOW LEVEL
BAROCLINIC ZONE EXTENDING EASTWARD ALONG/JUST NORTH OF THE NC/VA
BORDER. WHILE THE SURFACE LOW WILL CONTINUE TO ADVANCE NORTHEASTWARD
THIS EVENING IN ADVANCE OF THE PARENT UPPER LOW OVER THE SOUTHEAST
STATES...THE NORTHWARD PROGRESSION OF THE WARM FRONT WILL CONTINUE
TO BE HINDERED BY PRECIPITATION TO THE NORTH OF THE BOUNDARY.
COUPLED WITH A TENDENCY FOR VEERING LOW LEVEL FLOW IN THE WARM
SECTOR AND A QUICKLY APPROACHING DRYSLOT...THIS WILL KEEP ANY
REMAINING ISOLATED TORNADO THREAT IN THE SHORT TERM CONFINED TO AN
INCREASINGLY SMALL CORRIDOR ACROSS FAR EASTERN NC/FAR SOUTHEAST VA.

..GUYER.. 12/12/2008

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

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

LAT...LON 37037761 37197533 35757528 34827576 34507736 36087762
37037761

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