[MCD] SWOMCD

Fri Dec 9 00:59:38 UTC 2005

ACUS11 KWNS 090057
SWOMCD
SPC MCD 090056 
VAZ000-NCZ000-WVZ000-TNZ000-090700-

MESOSCALE DISCUSSION 2549
NWS STORM PREDICTION CENTER NORMAN OK
0656 PM CST THU DEC 08 2005

AREAS AFFECTED...SERN WV/CENTRAL AND SWRN VA/WRN NC

CONCERNING...FREEZING RAIN 

VALID 090056Z - 090700Z

FREEZING RAIN IS FORECAST TO OVERSPREAD THIS AREA OVER THE NEXT
SEVERAL HOURS...WITH LOCAL RAINFALL RATES OF .05 TO .10"/HR.  SOME
SIGNIFICANT ICE ACCUMULATION IS EXPECTED.

UPPER LOW CONTINUES MOVING ENEWD ACROSS THE MIDWEST/OH VALLEY...WITH
A LARGE SSW-NNE BAND OF PRECIPITATION OCCURRING FROM AL NNEWD INTO
THE MIDDLE OH VALLEY WITHIN WARM ADVECTION ZONE AHEAD OF UPPER LOW. 
STRONGEST WARM ADVECTION IS FORECAST TO SHIFT ACROSS THE
APPALACHIANS AND INTO THE ATLANTIC COAST STATES THROUGH THIS
EVENING...WITH SHARP AXIS OF QG FORCING DEPICTED ALONG AND JUST E OF
THE APPALACHIAN CREST BY 09/06Z.  

WITH 1036 MB SURFACE HIGH ANALYZED ATTM ALONG THE MID-ATLANTIC
COAST...STRONG WEDGE/DAMMING EVIDENT ATTM IN LEE OF THE MOUNTAINS
WILL PERSIST THROUGH THE EVENING BENEATH STRONG SLY LOW-LEVEL JET
/60 TO 70 KT/. THOUGH SURFACE WET-BULB TEMPERATURE ACROSS CENTRAL
AND ERN NC WOULD SUGGEST MAINLY RAIN...ZONE OF BELOW FREEZING
SURFACE TEMPERATURES SHOULD PERSIST WITHIN THE DISCUSSION AREA OVER
CENTRAL AND SWRN VA INTO SERN WV AND SWD ACROSS WRN NC...THUS
SUPPORTING FREEZING RAIN.  NRN EXTENT OF FREEZING RAIN THREAT
APPEARS LIKELY TO SET UP ACROSS CENTRAL VA...WHERE A TRANSITION TO
SLEET SHOULD OCCUR.

..GOSS.. 12/09/2005

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

ATTN...WFO...AKQ...LWX...RAH...RNK...RLX...GSP...MRX...

37738111 38277977 38287860 37887769 37237814 36407922
36018074 35368254 35538297 36668161 

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