FFC Mentions the "S" Word
01/08/2009 17:21
From the Atlanta NWS Forecast Discussion:
OVERALL...THE EXTENDED PERIODS LOOK DRY WITH BROAD CYCLONIC FLOW IN
PLACE ACROSS MUCH OF THE U.S. AN ALBERTA CLIPPER SYSTEM PASSES
THROUGH THE AREA MID-WEEK AND CONTINUES TO REINFORCE THE COLD
AIR...BUT DOES NOT HAVE ENOUGH MOISTURE TO SUPPORT PCPN...EXPECT
POSSIBLY OROGRAPHICALLY INDUCED -SHSN IN THE N GA MOUNTAINS. THEN...
THE MAIN ARCTIC FRONT OF THE WEEK...SUPPORTED BY THE 1059MB ARCTIC
HIGH REFERENCED ABOVE...MOVES INTO THE AREA AT THE VERY END OF THE
EXTENDED. LIMITED MOISTURE RETURN IN ADVANCE OF THIS SYSTEM MAY
PROVIDE SUPPORT FOR LIGHT WINTER TYPE PCPN. THICKNESS AND TEMPS
DICTATE THAT MUCH OF THIS WOULD BE IN THE FORM OF SNOW OR SLEET...SO
FOR NOW AM FORCED TO ADVERTISE SLGHT CHC -SN ACROSS THE N HALF OF
THE CWA AND -RA ACROSS THE SOUTH HALF. IT SHOULD BE
NOTED...HOWEVER...THAT SNOW EVENTS IN THE SOUTH IN ADVANCE OF COLD
FRONTS...OUTSIDE THE MOUNTAINS...ARE VERY RARE...SO CONFIDENCE IN
THIS ACTUALLY OCCURRING IS LOW.
OVERALL...THE EXTENDED PERIODS LOOK DRY WITH BROAD CYCLONIC FLOW IN
PLACE ACROSS MUCH OF THE U.S. AN ALBERTA CLIPPER SYSTEM PASSES
THROUGH THE AREA MID-WEEK AND CONTINUES TO REINFORCE THE COLD
AIR...BUT DOES NOT HAVE ENOUGH MOISTURE TO SUPPORT PCPN...EXPECT
POSSIBLY OROGRAPHICALLY INDUCED -SHSN IN THE N GA MOUNTAINS. THEN...
THE MAIN ARCTIC FRONT OF THE WEEK...SUPPORTED BY THE 1059MB ARCTIC
HIGH REFERENCED ABOVE...MOVES INTO THE AREA AT THE VERY END OF THE
EXTENDED. LIMITED MOISTURE RETURN IN ADVANCE OF THIS SYSTEM MAY
PROVIDE SUPPORT FOR LIGHT WINTER TYPE PCPN. THICKNESS AND TEMPS
DICTATE THAT MUCH OF THIS WOULD BE IN THE FORM OF SNOW OR SLEET...SO
FOR NOW AM FORCED TO ADVERTISE SLGHT CHC -SN ACROSS THE N HALF OF
THE CWA AND -RA ACROSS THE SOUTH HALF. IT SHOULD BE
NOTED...HOWEVER...THAT SNOW EVENTS IN THE SOUTH IN ADVANCE OF COLD
FRONTS...OUTSIDE THE MOUNTAINS...ARE VERY RARE...SO CONFIDENCE IN
THIS ACTUALLY OCCURRING IS LOW.