Special Weather Statement, NWS Atlanta, GA

Area Forecast Discussion
National Weather Service Peachtree City GA
350 AM EDT Thu Oct 29 2020

...Remnants of Tropical Storm Zeta currently tracking across
western and north Georgia bringing strong gusty winds to the area
early this morning...

.SHORT TERM /Today through Friday/...

Tropical Storm Zeta currently over central AL will rapidly move
across portions of west and north GA, exiting the forecast area by
mid to late morning and continuing to the northeast. An upper
level short wave will push across portions of north GA late this
evening, helping to push the surface low east of the area. Surface
high pressure will begin building into the area Friday afternoon.

As Zeta moves across the area this morning light to moderate rain
showers will continue across north and much of central Georgia.  1
to 2.5 inches of rainfall is expected through Friday morning across
areas along and north of I-85, with locally heavier rainfall
possible across portions of north GA. A Flash Flood Watch will
remain in effect through 8pm tonight.  Zeta will spread a swath of
up to 50-70 mph wind gusts again mainly along and north of I-85 as
Zeta moves across the area through 8am or so this morning.  Wind
will remain gusty this morning, however maximum wind gusts will drop
into the 20-30 mph range with isolated 15-25 mph gusts possible this
afternoon.

Low to mid clouds this morning will slowly improve through early
afternoon, with clouds scattering by late afternoon across much of
the area, however as the short wave moves across this evening
clouds will linger across portions of north GA into the late
evening hours.

With rapidly changing conditions through much of the forecast
period, guidance temperatures are in general agreement through the
period and stayed with a blend of guidance.

Atwell

&&

.LONG TERM /Friday Night through Wednesday/...

A much more benign and quiet forecast remains in the long term
with mainly dry ridge dominated and abnormally cool airmass in
place. Only main influencing feature to speak of is with a mostly
dry reinforcing cold front on Sunday. There is some potential for
an area of enhanced low level moisture advecting northwestward
off the Atlantic ahead of the front so have included a small zone
of slight pops for light rain in the far northeast CWA late
Saturday into Sunday.

What is more impactful will be the much cooler temps and possibly
coldest of the season so far to be ushered in behind the front
for Monday morning and Tuesday morning. The current forecast looks
to have some low 30s and freeze potential in the far NE higher
elevations early Monday and while other parts of north GA could be
in the mid 30s the enhanced NW gradient winds should limit frost
potential. Tuesday morning on the other hand looks to be even
cooler with lax winds so is a better bet for not just freeze
potential in the NE but also frost across much of the rest of
north GA. Central GA looks to be more in the upper 30s with this
update, but overall guidance has trended cooler than yesterday.

Baker

&&

.AVIATION...
06Z Update...
Rain showers associated will push across the TAF sites through
14-16Z as Tropical Storm Zeta moves across west and north Georgia
quickly this morning. S to SE winds will increase to 20-25kts with
gusts to 50-55kts across the ATL area TAF sites and 15-20 kts with
gusts to 30-40kts over CSG/MCN/AHN through 11-12z before shifting
to the SW and W with speeds of 15-20G30kts through 18-20z and
10-15kts through 06z. IFR/MVFR CIGs will improve to MVFR through
16-20Z with VFR after 20Z and SCT clouds between 21-24Z.

//ATL Confidence...
06Z Update...
Medium to high confidence all elements.

Atwell

&&

.PRELIMINARY POINT TEMPS/POPS...
Athens          79  50  68  45 /  50  20   0   0
Atlanta         76  49  62  46 /  50  10   0   0
Blairsville     73  45  57  38 /  70  30   5   0
Cartersville    76  48  61  44 /  50  20   5   0
Columbus        79  51  68  49 /  40   5   0   0
Gainesville     76  49  63  44 /  70  20   0   0
Macon           83  50  71  47 /  50  20   0   0
Rome            77  49  62  42 /  50  20   5   0
Peachtree City  77  48  64  46 /  50  10   0   0
Vidalia         83  52  72  51 /  60  30   0   0

&&

.FFC WATCHES/WARNINGS/ADVISORIES...
Tornado Watch until 6 AM EDT early this morning for the
following zones: Chattahoochee...Harris...Macon...Marion...
Muscogee...Schley...Stewart...Sumter...Talbot...Taylor...Webster.

Wind Advisory until 4 PM EDT this afternoon for the following
zones: Baldwin...Bibb...Bleckley...Butts...Chattahoochee...
Clarke...Crawford...Crisp...Dodge...Dooly...Glascock...Greene...
Hancock...Houston...Jasper...Jefferson...Johnson...Jones...
Lamar...Laurens...Macon...Madison...Marion...Monroe...Morgan...
Muscogee...Oconee...Oglethorpe...Peach...Pike...Pulaski...
Putnam...Schley...Stewart...Sumter...Talbot...Taliaferro...
Taylor...Twiggs...Upson...Warren...Washington...Webster...
Wilcox...Wilkes...Wilkinson.

Flash Flood Watch through this evening for the following zones:
Banks...Barrow...Bartow...Carroll...Catoosa...Chattooga...
Cherokee...Clarke...Clayton...Cobb...Coweta...Dade...Dawson...
DeKalb...Douglas...Fannin...Fayette...Floyd...Forsyth...Gilmer...
Gordon...Gwinnett...Hall...Haralson...Heard...Henry...Jackson...
Lumpkin...Murray...Newton...North Fulton...Oconee...Paulding...
Pickens...Polk...Rockdale...South Fulton...Spalding...Towns...
Union...Walker...Walton...White...Whitfield.

Tropical Storm Warning for the following zones: Banks...Barrow...
Bartow...Carroll...Catoosa...Chattooga...Cherokee...Clayton...
Cobb...Coweta...Dade...Dawson...DeKalb...Douglas...Fannin...
Fayette...Floyd...Forsyth...Gilmer...Gordon...Gwinnett...Hall...
Haralson...Harris...Heard...Henry...Jackson...Lumpkin...
Meriwether...Murray...Newton...North Fulton...Paulding...
Pickens...Polk...Rockdale...South Fulton...Spalding...Towns...
Troup...Union...Walker...Walton...White...Whitfield.

&&

SHORT TERM...Atwell
LONG TERM....Baker
AVIATION...Atwell

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Special Weather Statement
National Weather Service Peachtree City GA
456 AM EDT Thu Oct 29 2020

GAZ001>004-011-012-019-290945-
Chattooga GA-Whitfield GA-Catoosa GA-Walker GA-Gordon GA-Dade GA-
Floyd GA-
456 AM EDT Thu Oct 29 2020

...SIGNIFICANT WEATHER ADVISORY FOR CHATTOOGA...WHITFIELD...
CATOOSA...WALKER...WESTERN GORDON...DADE AND NORTHERN FLOYD COUNTIES
UNTIL 545 AM EDT...

At 456 AM EDT...A large area of heavy showers was along a line
extending from near Martin Springs to Armuchee...and moving
northeast at 35 mph.

  HAZARD...Heavy rain.

  IMPACT...Heavy rain may cause temporary street flooding especially
           in poor drainage areas.

Some locations in the path of these storms include
Rome, Dalton, Calhoun, Lafayette, Summerville, Ringgold, Trenton,
Fort Oglethorpe, Rossville, Chickamauga, Trion, Varnell, Lookout
Mountain, Tunnel Hill, Cohutta, Resaca, Plainville, Lyerly, Menlo and
Center Post.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should slow down and be prepared for possible loss of
control due to hydroplaning.

LAT...LON 3499 8482 3471 8490 3471 8494 3467 8490
      3468 8493 3468 8494 3463 8491 3440 8490
      3439 8497 3440 8498 3438 8498 3439 8500
      3438 8501 3429 8546 3498 8560
TIME...MOT...LOC 0856Z 246DEG 29KT 3512 8549 3440 8520

Special Weather Statement
National Weather Service Peachtree City GA
511 AM EDT Thu Oct 29 2020

GAZ006>009-014>016-023-291000-
Gilmer GA-Hall GA-Dawson GA-Union GA-Towns GA-White GA-Lumpkin GA-
Fannin GA-
511 AM EDT Thu Oct 29 2020

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN GILMER...NORTHWESTERN
HALL...DAWSON...UNION...TOWNS...WHITE...LUMPKIN AND EASTERN FANNIN
COUNTIES UNTIL 600 AM EDT...

At 510 AM EDT...a large area of heavy showers was moving northeast
at 35 mph.

  HAZARD...Heavy rain.

  IMPACT...Heavy rain may cause temporary street flooding especially
           in poor drainage areas.

Some locations in the path of this storm include
Dahlonega, Cleveland, Dawsonville, Blue Ridge, Hiawassee,
Blairsville, Young Harris, Clermont, Helen, Morganton, Suches, Unicoi
State Park, Amicalola Falls State Park, Robertstown, Blue Mountain
Shelter, Gumlog, Jones Creek, Titus, Pisgah and Mineral Bluff.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should slow down and be prepared for possible loss of
control due to hydroplaning.

LAT...LON 3498 8360 3492 8359 3491 8363 3488 8366
      3482 8365 3480 8368 3476 8363 3469 8364
      3466 8366 3462 8364 3458 8364 3455 8362
      3453 8363 3451 8366 3450 8367 3434 8426
      3447 8426 3447 8427 3499 8433
TIME...MOT...LOC 0910Z 239DEG 61KT 3456 8415

Special Weather Statement
National Weather Service Peachtree City GA
530 AM EDT Thu Oct 29 2020

GAZ004>007-012-291000-
Gilmer GA-Whitfield GA-Gordon GA-Murray GA-Fannin GA-
530 AM EDT Thu Oct 29 2020

...SIGNIFICANT WEATHER ADVISORY FOR GILMER...SOUTHEASTERN
WHITFIELD...NORTHEASTERN GORDON...MURRAY AND NORTHWESTERN FANNIN
COUNTIES UNTIL 600 AM EDT...

At 530 AM EDT...an area of heavy showers was near Cherry Log, or 7
miles north of Ellijay...moving northeast at 40 mph.

  HAZARD...Heavy rain.

  IMPACT...Heavy rain may cause temporary street flooding especially
           in poor drainage areas.

Some locations in the path of this storm include
Dalton, Chatsworth, Ellijay, Blue Ridge, Eton, East Ellijay, Resaca,
Crandall, Sumac, Jones Mill, Higdon, Gregory, Cohutta Wilderness,
Epworth, Conasauga Lake, Cartecay, Cherry Log, Fort Mountain State
Park, Carters and Talona.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should slow down and be prepared for possible loss of
control due to hydroplaning.

LAT...LON 3499 8432 3458 8430 3458 8433 3456 8435
      3459 8493 3499 8481
TIME...MOT...LOC 0930Z 239DEG 49KT 3480 8446