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Area forecast discussion
National Weather Service Peachtree City Georgia
1014 am EST Fri Feb 22 2019



Update...

Dense fog remains in place across much of our forecast area this
morning, with visibilities in some locations of 1/4 sm or less.
As such, the dense fog advisory has been extended until 11 am EST.
Rain is ongoing across northern Georgia and is expected to
continue throughout the day today. River flooding is occurring in
multiple locations, mainly across northwest Georgia, and the risk
for flooding continues due to saturated soils and high water
levels.

King



Previous discussion... /issued 632 am EST Fri Feb 22 2019/

Update...
updated for the 12z aviation discussion.

Previous discussion... /issued 240 am EST Fri Feb 22 2019/

Short term /today through Saturday/...
the wet pattern will continue through the short term, mainly for
north Georgia. Some drying is possible early Saturday with pops dropping
below likely category, however this will change Saturday afternoon
as moisture increases ahead of a strong cold front that will be
moving into the Tennessee Valley late Saturday.

All models bring a backdoor front into the County Warning Area this afternoon,
however they differ on the strength. Will lean more toward the
NAM/sref resolution which keeps northeast Georgia much cooler late this
afternoon and Saturday. With plenty of upglide over The Wedge,
clouds, light rain or drizzle can be expected across north Georgia. South
of The Wedge, temperatures will warm well above normal with dry
conditions.

Areas of dense fog will continue early this morning and will
therefore keep the dense fog advisory as is.

17

Long term /Saturday night through Thursday/...
the long term begins with a strong cold front that will move
across the County Warning Area Saturday night/early Sunday morning. This will
finally clear out the rain and bring a few days of dry weather. A
zonal flow will remain over the County Warning Area following the frontal passage. GFS and
European model (ecmwf) differ in the depth of moisture of waves moving through the
flow and across the County Warning Area toward mid week next week. At this time
will continue with chance pops beginning Tuesday night.
Temperatures will remain above normal through the long term.

17

Hydrology...
rainfall amounts across north Georgia will be around 1 inch or less
today, but with the ground saturated, the additional rainfall will
continue to aggravate the ongoing flooding and possibly push more
creeks/rivers into flood. Will therefore continue the current Flood
Watch as is.

17

Aviation...
12z update...
IFR conditions will continue through the forecast. Csg/mcn will
see MVFR conditions later today but should go back to IFR tonight.
Areas of rain will continue north of atl/ahn with both sites
being on the southern end of the rain. Atl/ahn could see showers
intermittently through the forecast. Winds will be light and
variable to near calm, becoming east this afternoon and evening.
Dense fog will keep vsbys around 1/2sm or less through 14z with
improvement into the afternoon.

//Atl confidence...12z update...
medium confidence.

17

&&

Preliminary point temps/pops...
Athens 60 48 53 49 / 50 50 60 80
Atlanta 65 52 59 54 / 50 50 60 80
Blairsville 57 48 54 47 / 90 70 80 90
Cartersville 60 51 60 53 / 70 60 80 80
Columbus 78 61 79 60 / 30 30 50 70
Gainesville 58 48 52 47 / 70 60 70 90
Macon 76 57 72 61 / 20 20 40 60
Rome 58 52 63 54 / 80 60 80 80
Peachtree City 71 53 66 57 / 40 40 50 80
Vidalia 80 60 75 60 / 10 20 40 20

&&

Ffc watches/warnings/advisories...
dense fog advisory until 11 am EST this morning for the
following zones: Baldwin...banks...Barrow...Bartow...Bibb...
Bleckley...Butts...Carroll...Catoosa...Chattahoochee...
Chattooga...Cherokee...Clarke...Clayton...Cobb...Coweta...
Crawford...crisp...Dade...Dawson...DeKalb...Dodge...Dooly...
Douglas...Emanuel...Fannin...Fayette...Floyd...Forsyth...
Gilmer...Glascock...Gordon...Greene...Gwinnett...Hall...
Hancock...Haralson...Harris...heard...Henry...Houston...
Jackson...Jasper...Jefferson...Johnson...Jones...Lamar...
Laurens...Lumpkin...Macon...Madison...Marion...Meriwether...
Monroe...Montgomery...Morgan...Murray...Muscogee...Newton...
north Fulton...Oconee...Oglethorpe...Paulding...Peach...
Pickens...Pike...Polk...Pulaski...Putnam...Rockdale...Schley...
South Fulton...Spalding...Stewart...Sumter...Talbot...
Taliaferro...Taylor...Telfair...Toombs...towns...Treutlen...
Troup...Twiggs...Union...Upson...Walker...Walton...Warren...
Washington...Webster...Wheeler...white...Whitfield...Wilcox...
Wilkes...Wilkinson.

Flood Watch until 7 PM EST this evening for the following zones:
Bartow...Catoosa...Chattooga...Cherokee...Dade...Dawson...
Fannin...Floyd...Gilmer...Gordon...Lumpkin...Murray...Pickens...
towns...Union...Walker...white...Whitfield.

&&

$$

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