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Area forecast discussion
National Weather Service Peachtree City Georgia
629 am EST Sat Jan 20 2018




Previous discussion... /issued 254 am EST Sat Jan 20 2018/

Short term /today through Sunday/...
through the short term, low pressure will traverse the area from the
west. At this time, this system appears to have limited moisture,
and the short term forecast remains precip free. Increasing clouds
this morning will diminish somewhat this afternoon, then increase
again Sunday as the low positions itself over the state. A warming
temperature trend is expected, with most areas seeing mid 50s to low
60 temperatures today, then mid to upper 60s Sunday. Lows will be in
the 30s and 40s Sunday morning.

31

Long term /Sunday night through Friday/...
models in very good agreement through the long term. The long term
begins with an 500 mb low over the Midwest with an associated cold
front moving across the southeast. This front will move across the
County Warning Area Monday night, however moisture will spread across the County Warning Area
Monday. Both GFS/ECMWF/Canadian keep the deepest moisture across
north Georgia and have therefore kept the highest pops across
north Georgia. Dry air will quickly spread across the region Monday
night ending the precip. There is low instability with the front,
but enough to bring a slight chance of thunder across north Georgia
Monday. The dry air will remain over the County Warning Area through Friday as a
500 mb ridge slowly builds over the eastern US. Temperatures will be
near normal for the long term.

17

&&

Aviation...
12z update...
VFR conditions expected through the period. Very patchy MVFR is
possible through 16z. Expect cigs to improve/scatter 16-18z. Will
stay west at 5-7kt through the day, then become light overnight.
Models indicate that winds could shift to the east mid morning
Sunday.

//Atl confidence...12z update...
high on all elements.

31

&&

Preliminary point temps/pops...
Athens 60 38 65 42 / 0 0 0 5
Atlanta 57 40 64 45 / 0 0 0 0
Blairsville 53 34 61 40 / 5 0 0 5
Cartersville 55 36 64 43 / 0 0 0 5
Columbus 62 40 68 47 / 0 0 0 0
Gainesville 55 40 62 43 / 0 0 0 5
Macon 61 36 67 44 / 0 0 0 5
Rome 56 35 64 43 / 0 0 0 0
Peachtree City 58 35 65 44 / 0 0 0 0
Vidalia 62 42 67 46 / 0 0 0 0

&&

Ffc watches/warnings/advisories...
none.
&&

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