SE Snow Possible 4/14-4/15

[White Lighten]

Looking over the latest forecast models it looks like a few snow flurries and snow showers may fall across parts of the SE for Monday-Tuesday. The GFS brings a few snow flurries as far south as Atlanta, GA.

[Ed Mahmoud]

Peachtree City AFD snip

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
415 PM EDT SUN APR 13 2008

.SHORT TERM /TONIGHT THROUGH TUESDAY NIGHT/...
MAIN FOCUS FOR SHORT TERM CONTINUES TO BE DEEP UPPER LOW SINKING
SOUTHWARD THROUGH THE EASTERN U.S. PATTERN STILL IN PLACE TO BRING
AN EXTENDED PERIOD OF UNSEASONABLY COLD CONDITIONS TO THE CWA FOR
MUCH OF THE SHORT TERM FORECAST PERIOD. A DIGGING POLAR JET ON THE
BACK SIDE OF THE UPPER LOW AND A COUPLE OF SHORT WAVES WILL HELP DIG
THE UPPER LOW FURTHER SOUTH AS IT SLOWLY PROGRESSES EASTWARD. THE
UPPER LOW WILL REACH ITS FARTHEST SOUTHWARD EXTENSION EARLY
TUE...THEN BEGIN TO SHIFT EAST OFF THE COAST...MOVING INTO A
FAVORABLE POSITION TO PROVIDE US WITH DEEP-LAYERED NORTHERLY FLOW
ALOFT AND SUBSIDENCE. UNUSUALLY COLD TEMPERATURES ALOFT WILL
ACCOMPANY THE UPPER LOW. 850MB TEMPS ALREADY BELOW 0C ACROSS N
GA...AND WILL DROP BELOW 0C ACROSS THE MAJORITY OF THE CWA BY
00Z...BOTTOMING OUT IN THE -6C RANGE IN THE NORTH MON NIGHT/TUE
MORNING. MEANWHILE...A POCKET OF VERY COLD AIR ALOFT...WITH 500MB
TEMPS IN THE -25C TO -28C RANGE...WILL ACCOMPANY THE UPPER-LOW.
ASSOCIATED MID-LEVEL MOISTURE AND STEEP LAPSE RATES COMBINED WITH
OROGRAPHIC LIFTING WILL PROVIDE AMPLE SUPPORT FOR SCT INSTABILITY
SHRA DURING MAX INSOLATION MON. CLOUD COVER WILL INCREASE
OVERNIGHT...BUT REALLY FEEL...OUTSIDE THE NORTHERN
MOUNTAINS...SHRA THREAT WILL BE CONFINED TO LATE MORNING THROUGH
MID-AFTERNOON MON...SIMILAR TO WHAT WE SAW ON 24 MARCH. LOW-LEVEL
THICKNESS VALUES AND 850MB TEMPS STILL SUPPORT -SNSH IN FAR N GA
LATE TONIGHT/EARLY SUN...ALBEIT AS NOTED ABOVE SHRA ACTIVITY WILL
LIKELY REQUIRE INSOLATION TO GET GOING IN EARNEST. HOWEVER...GIVEN
EXPECTED OROGRAPHIC LIFT AND AN SOME UPPER LEVEL SUPPORT...ISOLD -SNSH
STILL POSSIBLE IN THE FAR NORTH MOUNTAINS LATE TONIGHT/EARLY
MON...SO WILL CONTINUE TO ADVERTISE FOR THOSE AREAS ONLY. NOT
EXPECTING ANY PROBLEMS WITH THIS.