U.S. Weather Extremes for
Thursday, December 13, 2018

High Temperature


86°F at Brownsville/Intl, TX
86°F at Mcallen/Miller Intl, TX

Low Temperature


-23°F at Clayton Lake, ME

High Precipitation


4.05in at Little Rock, AR


Data for lower 48 states and courtesy of
NWS-CPC


Select the NWS Forecast Office you wish to view (Defaults to Atlanta)
NWS Area Forecast Discussion
AFD issued by the Atlanta/Peachtree City, GA NWS forecast office.

000
FXUS62 KFFC 150011
AFDFFC

Area Forecast Discussion
National Weather Service Peachtree City GA
711 PM EST Fri Dec 14 2018

.PREV DISCUSSION... /issued 224 PM EST Fri Dec 14 2018/

SHORT TERM /Tonight through Saturday Night/...

The sprawling cut-off low continues its eastward trek into the mid-
Mississippi Valley this afternoon, bringing rainy and drizzly
weather to the state. As expected, very limited instability has
restricted much thunderstorm development. What little embedded
thunder we are able to muster will continue to be limited primarily
to central Georgia through this evening, though a few rumbles of
thunder cannot be ruled out farther north. Additional rainfall
amounts this afternoon into the overnight hours are expected to be
manageable. Most areas will likely receive an additional half inch
or less in north Georgia while some locations in central Georgia may
approach an additional inch. Given these amounts, further flooding
concerns are rather minimal.

Rainfall coverage will lessen from west to east as the low lifts
northeastward through Saturday morning. By this time, only scattered
showers will remain across the area with shower chances further
retreating to the northern half of the area by Saturday afternoon in
the vicinity of the upper low. Shower chances will then end across
north Georgia by Saturday night into Sunday morning as the upper low
exits toward the mid-Atlantic.

RW

LONG TERM /Sunday through Friday/...

Still some differences in amount of enhanced moisture field between
the Euro and GFS for the Thursday wave/system so continue some
slight to chance pops from Wed PM through Thurs PM to handle.
Otherwise very little change made to mostly dry rest of fcst.
Previous discussion follows...

Baker

PREV DISCUSSION... /Issued 326 AM EST Fri Dec 14 2018/

LONG TERM /Saturday Night through Thursday/...
A few lingering showers across north GA Saturday night as the H5
upper low moves away from the CWA. Dry and stable conditions will
begin Sunday and continue through mid week. The ECMWF has been
consistent with a midweek system bringing a chance of rain back
into the CWA by Thursday. The GFS, while previously being the
drier model, is coming around to more of a ECMWF solution,
although timing and moisture depth differences remain. Will
continue with slight chance pops for the end of the long term.
Temperatures through the long term will be near seasonal norms.

17

&&

.AVIATION...
00Z UPDATE...

We had a brief respite at Atlanta area terminals as a dry slot
moved in but this has since been replaced with a moderate RA
shield that is keeping area LIFR conditions. At least -RA will
continue through 07Z followed by further reduced VSBY but
continued LIFR range. Wind shift for ATL around 14Z and this is
where I put improvement to MVFR although this improvement could be
delayed by a few hours.

//ATL CONFIDENCE...00Z UPDATE...
Medium on VLIFR potential and LIFR duration

High on remaining elements.

&&

.PRELIMINARY POINT TEMPS/POPS...
Athens          49  58  43  58 /  80  40  20   0
Atlanta         48  55  44  55 /  70  30  20   0
Blairsville     46  52  39  51 /  70  40  40  10
Cartersville    48  54  43  53 /  70  30  30   5
Columbus        51  59  47  57 /  60  20  10   0
Gainesville     47  54  42  54 /  80  40  30   5
Macon           53  62  45  59 /  80  30  10   0
Rome            48  53  43  54 /  70  30  30   5
Peachtree City  49  56  44  56 /  70  30  10   0
Vidalia         58  67  47  61 /  90  40  10   0

&&

.FFC WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

$$

SHORT TERM...RW
LONG TERM....17
AVIATION...Deese

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