Alert archive / Georgia / Flood Watches in 2019

Flood Watch 2, NWS Atlanta, GA

February 21, 201921 counties in Georgia

NWS Atlanta, GA issued this flood watch at Feb 21, 2019, 2:14 PM EST for 21 counties in Georgia. It took effect at Feb 21, 2019, 7:00 PM EST. It was in force for 59 hr.

The area

The counties it named.

The facts

Issued
Feb 21, 2019, 2:14 PM EST (19:14 UTC)
In effect from
Feb 21, 2019, 7:00 PM EST
Expired
Feb 24, 2019, 6:10 AM EST
In force
59 hr
Issued by
NWS Atlanta, GA
Flood severity
None
All 21 counties

Bartow County, GA, Catoosa County, GA, Chattooga County, GA, Cherokee County, GA, Dade County, GA, Dawson County, GA, Fannin County, GA, Floyd County, GA, Forsyth County, GA, Gilmer County, GA, Gordon County, GA, Hall County, GA, Lumpkin County, GA, Murray County, GA, Pickens County, GA, Polk County, GA, Towns County, GA, Union County, GA, Walker County, GA, White County, GA, Whitfield County, GA

The radar

The Atlanta radar (KFFC), 133 km from the middle of the area, began a volume at 19:18 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 7.2 hours before the alert went out and 133 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 12:00Z on 2019-02-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 12:00Z on 2019-02-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 199 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
411 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
199 m²/s²
0-3 km storm-relative helicity
183 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

As transmitted.

258 
WGUS62 KFFC 211914
FFAFFC

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Peachtree City GA
214 PM EST Thu Feb 21 2019


GAZ001>009-011>016-019>021-220200-
/O.NEW.KFFC.FA.A.0002.190222T0000Z-190223T0000Z/
/O.CON.KFFC.FF.A.0003.000000T0000Z-190222T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Dade-Walker-Catoosa-Whitfield-Murray-Fannin-Gilmer-Union-Towns-
Chattooga-Gordon-Pickens-Dawson-Lumpkin-White-Floyd-Bartow-
Cherokee-
Including the cities of Calhoun, Dahlonega, Cleveland, Rome, 
and Cartersville
214 PM EST Thu Feb 21 2019

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...
...FLOOD WATCH IN EFFECT FROM 7 PM EST THIS EVENING THROUGH
FRIDAY EVENING...

The Flash Flood Watch continues for

* North Georgia and portions of central GA, mainly along and 
  north of the Interstate 85 corridor.

* Until 7 PM EST this evening

* Soil conditions remain very saturated and river levels remain 
  high across the area. The potential for locally heavy rainfall 
  will continue through this evening. Rainfall totals up to an 
  1", with locally higher amounts possible in any stronger 
  storms. This amount of rainfall will produce significant 
  runoff and flooding of creeks and rivers. 

* Periods of heavy rain can overwhelm or clog storm drains and 
  ditches with debris and cause extensive street flooding and 
  road ponding. This is especially true this time of year as 
  fallen leaves block or impede drainage systems. Take time 
  ahead of the rain to clear leaves and debris from these 
  drainage systems. Due to the extremely saturated soils, downed 
  trees will be likely, even with sub severe winds. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

The National Weather Service in Peachtree City has issued a

* Flood Watch for portions of north Georgia, mainly along and
  north of a line from Rome to Canton to Cleveland.

* From 7 PM EST this evening through Friday evening

* Soil conditions remain very saturated and river levels remain
  high across the area. The potential for prolonged rainfall will
  continue through Friday evening. Additional rainfall totals up
  to 2", with locally higher amounts are possible. This amount of
  rainfall could produce significant runoff and flooding of 
  creeks and rivers. 

* Prolonged rain can overwhelm or clog storm drains and ditches
  with debris and cause extensive street flooding and road
  ponding. This is especially true this time of year as fallen
  leaves block or impede drainage systems. Take time ahead of the
  rain to clear leaves and debris from these drainage systems. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flood Watch means there is a potential for flooding based on
current forecasts.

You should monitor later forecasts and be alert for possible
Flood Warnings. Those living in areas prone to flooding should be
prepared to take action should flooding develop.

&&

$$

GAZ022>025-030>035-041>045-052>055-220000-
/O.CON.KFFC.FF.A.0003.000000T0000Z-190222T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Forsyth-Hall-Banks-Jackson-Polk-Paulding-Cobb-North Fulton-
Gwinnett-Barrow-Haralson-Carroll-Douglas-South Fulton-DeKalb-
Heard-Coweta-Fayette-Clayton-
Including the cities of Gainesville, Marietta, Atlanta, 
Lawrenceville, Carrollton, Douglasville, East Point, Decatur, 
Newnan, and Peachtree City
214 PM EST Thu Feb 21 2019

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...

The Flash Flood Watch continues for

* North Georgia and portions of central GA, mainly along and 
  north of the Interstate 85 corridor.

* Until 7 PM EST this evening

* Soil conditions remain very saturated and river levels remain 
  high across the area. The potential for locally heavy rainfall 
  will continue through this evening. Rainfall totals up to an 
  1", with locally higher amounts possible in any stronger 
  storms. This amount of rainfall will produce significant 
  runoff and flooding of creeks and rivers. 

* Periods of heavy rain can overwhelm or clog storm drains and 
  ditches with debris and cause extensive street flooding and 
  road ponding. This is especially true this time of year as 
  fallen leaves block or impede drainage systems. Take time 
  ahead of the rain to clear leaves and debris from these 
  drainage systems. Due to the extremely saturated soils, downed 
  trees will be likely, even with sub severe winds. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$
7 follow-up statements
037 
WGUS62 KFFC 220007
FFAFFC

Flood Watch
National Weather Service Peachtree City GA
707 PM EST Thu Feb 21 2019


GAZ001>009-011>016-019>021-220815-
/O.EXP.KFFC.FF.A.0003.000000T0000Z-190222T0000Z/
/O.CON.KFFC.FA.A.0002.000000T0000Z-190223T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Dade-Walker-Catoosa-Whitfield-Murray-Fannin-Gilmer-Union-Towns-
Chattooga-Gordon-Pickens-Dawson-Lumpkin-White-Floyd-Bartow-
Cherokee-
Including the cities of Calhoun, Dahlonega, Cleveland, Rome, 
and Cartersville
707 PM EST Thu Feb 21 2019

...FLOOD WATCH REMAINS IN EFFECT THROUGH FRIDAY EVENING...
...FLASH FLOOD WATCH HAS EXPIRED...

The Flood Watch continues for

* Portions of north central Georgia...northeast Georgia and 
  northwest Georgia...including the following areas...in north 
  central Georgia...Cherokee...Dawson...Fannin...Gilmer... 
  Lumpkin...Pickens and Union. In northeast Georgia...Towns and 
  White. In northwest Georgia...Bartow...Catoosa...Chattooga... 
  Dade...Floyd...Gordon...Murray...Walker and Whitfield. 

* Through Friday evening

* Soil conditions remain very saturated and river levels remain
  high across the area. The potential for locally heavy rainfall
  will continue through Friday. Rainfall totals up to 2 inches, 
  with locally higher amounts possible in any stronger storms. 
  This amount of rainfall will produce significant runoff and 
  flooding of creeks and rivers.

* Periods of heavy rain can overwhelm or clog storm drains and
  ditches with debris and cause extensive street flooding and road
  ponding. Take time ahead of the rain to clear leaves and debris
  from drainage systems. Due to the extremely saturated soils, 
  downed trees will be likely, even with sub severe winds. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flood Watch means there is a potential for flooding based on
current forecasts.

You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be
prepared to take action should flooding develop.

&&

The Flash Flood Watch for portions of north central Georgia...
northeast Georgia and northwest Georgia has expired.

$$

GAZ022>025-030>035-041>045-052>055-220115-
/O.EXP.KFFC.FF.A.0003.000000T0000Z-190222T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Forsyth-Hall-Banks-Jackson-Polk-Paulding-Cobb-North Fulton-
Gwinnett-Barrow-Haralson-Carroll-Douglas-South Fulton-DeKalb-
Heard-Coweta-Fayette-Clayton-
Including the cities of Gainesville, Marietta, Atlanta, 
Lawrenceville, Carrollton, Douglasville, East Point, Decatur, 
Newnan, and Peachtree City
707 PM EST Thu Feb 21 2019

...FLASH FLOOD WATCH HAS EXPIRED...

The Flash Flood Watch for portions of north central Georgia...
northeast Georgia...northwest Georgia and west central Georgia
has expired. Although rain is still expected to impact the area
Friday, rainfall amounts are low enough that the risk of flash
flooding has diminished.

$$
813 
WGUS62 KFFC 220810
FFAFFC

Flood Watch
National Weather Service Peachtree City GA
310 AM EST Fri Feb 22 2019


GAZ001>009-011>016-019>021-221800-
/O.CON.KFFC.FA.A.0002.000000T0000Z-190223T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Dade-Walker-Catoosa-Whitfield-Murray-Fannin-Gilmer-Union-Towns-
Chattooga-Gordon-Pickens-Dawson-Lumpkin-White-Floyd-Bartow-
Cherokee-
Including the cities of Calhoun, Dahlonega, Cleveland, Rome, 
and Cartersville
310 AM EST Fri Feb 22 2019

...FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING...

The Flood Watch continues for

* Portions of north central Georgia...northeast Georgia and 
  northwest Georgia...including the following areas...in north 
  central Georgia...Cherokee...Dawson...Fannin...Gilmer... 
  Lumpkin...Pickens and Union. In northeast Georgia...Towns and 
  White. In northwest Georgia...Bartow...Catoosa...Chattooga... 
  Dade...Floyd...Gordon...Murray...Walker and Whitfield. 

* Through this evening

* Soil conditions remain very saturated and river levels remain
  high across the area. The potential for locally heavy rainfall
  will continue through Friday. Rainfall totals up to 1 inch, 
  with locally higher amounts possible in any stronger storms. 
  This amount of rainfall will produce significant runoff and 
  flooding of creeks and rivers. 

* Periods of heavy rain can overwhelm or clog storm drains and 
  ditches with debris and cause extensive street flooding and 
  road ponding. Take time ahead of the rain to clear leaves and 
  debris from drainage systems. Due to the extremely saturated 
  soils, downed trees will be likely, even with sub severe 
  winds. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flood Watch means there is a potential for flooding based on
current forecasts.

You should monitor later forecasts and be alert for possible
Flood Warnings. Those living in areas prone to flooding should be
prepared to take action should flooding develop.

&&

The Flash Flood Watch for portions of north central Georgia...
northeast Georgia and northwest Georgia has expired.

$$
462 
WGUS62 KFFC 221623
FFAFFC

Flood Watch
National Weather Service Peachtree City GA
1123 AM EST Fri Feb 22 2019

GAZ001>009-011>016-019>021-230000-
/O.CON.KFFC.FA.A.0002.000000T0000Z-190223T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Dade-Walker-Catoosa-Whitfield-Murray-Fannin-Gilmer-Union-Towns-
Chattooga-Gordon-Pickens-Dawson-Lumpkin-White-Floyd-Bartow-
Cherokee-
Including the cities of Calhoun, Dahlonega, Cleveland, Rome, 
and Cartersville
1123 AM EST Fri Feb 22 2019

...FLOOD WATCH REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING...

The Flood Watch continues for

* Portions of portions of north Georgia along and north of a line
  from Rome to Canton to Cleveland.
  

* Until 7 PM EST this evening.

* Soil conditions remain saturated and river levels remain high
  across the area. The potential for locally heavy rainfall will
  continue through this evening. Rainfall totals up to 1 inch, 
  with locally higher amounts possible in any stronger storms. 
  This amount of rainfall will produce significant runoff and 
  flooding of creeks and rivers. 

* Periods of heavy rain can overwhelm or clog storm drains and 
  ditches with debris and cause extensive street flooding and 
  road ponding. Take time ahead of the rain to clear leaves and 
  debris from drainage systems. Due to the extremely saturated 
  soils, downed trees will be likely, even with sub severe 
  winds. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flood Watch means there is a potential for flooding based on
current forecasts.

You should monitor later forecasts and be alert for possible
Flood Warnings. Those living in areas prone to flooding should be
prepared to take action should flooding develop.

&&

The Flash Flood Watch for portions of north central Georgia...
northeast Georgia and northwest Georgia has expired.

$$
298 
WGUS62 KFFC 221938
FFAFFC

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Peachtree City GA
238 PM EST Fri Feb 22 2019


GAZ001>009-011>016-019>021-230345-
/O.EXT.KFFC.FA.A.0002.000000T0000Z-190223T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Dade-Walker-Catoosa-Whitfield-Murray-Fannin-Gilmer-Union-Towns-
Chattooga-Gordon-Pickens-Dawson-Lumpkin-White-Floyd-Bartow-
Cherokee-
Including the cities of Calhoun, Dahlonega, Cleveland, Rome, 
and Cartersville
238 PM EST Fri Feb 22 2019

...FLOOD WATCH NOW IN EFFECT THROUGH SATURDAY MORNING...

The Flood Watch is now in effect for

* Portions of portions of north Georgia along and north of a line
  from Rome to Canton to Cleveland.

* Through 7 AM EST Saturday morning.

* Soil conditions remain saturated and river levels remain high
  across the area. The potential for locally heavy rainfall will
  continue through tonight. Rainfall totals up to 1 inch, with 
  locally higher amounts possible in any stronger storms. This 
  amount of rainfall will produce significant runoff and flooding 
  of creeks and rivers. 

* Periods of heavy rain can overwhelm or clog storm drains and 
  ditches with debris and cause extensive street flooding and 
  road ponding. Take time ahead of the rain to clear leaves and 
  debris from drainage systems. Due to the extremely saturated 
  soils, downed trees will be likely, even with sub severe 
  winds. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flood Watch means there is a potential for flooding based on
current forecasts.

You should monitor later forecasts and be alert for possible
Flood Warnings. Those living in areas prone to flooding should be
prepared to take action should flooding develop.

&&


$$
972 
WGUS62 KFFC 230751
FFAFFC

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Peachtree City GA
251 AM EST Sat Feb 23 2019


GAZ022-023-030-231600-
/O.EXB.KFFC.FA.A.0002.000000T0000Z-190224T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Forsyth-Hall-Polk-
Including the city of Gainesville
251 AM EST Sat Feb 23 2019

...FLOOD WATCH IN EFFECT THROUGH SUNDAY MORNING...

The National Weather Service in Peachtree City has expanded the

* Flood Watch to include portions of north central Georgia and 
  northwest Georgia...including the following areas...in north 
  central Georgia...Forsyth and Hall. In northwest Georgia... 
  Polk. 

* Through Sunday morning

* Soil conditions remain saturated and river levels remain high 
  across the area. The potential for locally heavy rainfall will 
  continue through tonight. Rainfall totals up to 1 inch, with 
  locally higher amounts possible in any stronger storms. This 
  amount of rainfall will produce significant runoff and 
  flooding of creeks and rivers. 

* Periods of heavy rain can overwhelm or clog storm drains and 
  ditches with debris and cause extensive street flooding and 
  road ponding. Take time ahead of the rain to clear leaves and 
  debris from drainage systems. Due to the extremely saturated 
  soils, downed trees will be likely, even with sub severe 
  winds. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flood Watch means there is a potential for flooding based on
current forecasts.

You should monitor later forecasts and be alert for possible
Flood Warnings. Those living in areas prone to flooding should be
prepared to take action should flooding develop.

&&

$$

GAZ001>009-011>016-019>021-231600-
/O.EXT.KFFC.FA.A.0002.000000T0000Z-190224T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Dade-Walker-Catoosa-Whitfield-Murray-Fannin-Gilmer-Union-Towns-
Chattooga-Gordon-Pickens-Dawson-Lumpkin-White-Floyd-Bartow-
Cherokee-
Including the cities of Calhoun, Dahlonega, Cleveland, Rome, 
and Cartersville
251 AM EST Sat Feb 23 2019

...FLOOD WATCH NOW IN EFFECT THROUGH SUNDAY MORNING...

The Flood Watch has been extended for

* Portions of north central Georgia...northeast Georgia and 
  northwest Georgia...including the following areas...in north 
  central Georgia...Cherokee...Dawson...Fannin...Gilmer... 
  Lumpkin...Pickens and Union. In northeast Georgia...Towns and 
  White. In northwest Georgia...Bartow...Catoosa...Chattooga... 
  Dade...Floyd...Gordon...Murray...Walker and Whitfield. 

* Through Sunday morning

* Soil conditions remain saturated and river levels remain high 
  across the area. The potential for locally heavy rainfall will 
  continue through tonight. Rainfall totals up to 1 inch, with 
  locally higher amounts possible in any stronger storms. This 
  amount of rainfall will produce significant runoff and 
  flooding of creeks and rivers. 

* Periods of heavy rain can overwhelm or clog storm drains and 
  ditches with debris and cause extensive street flooding and 
  road ponding. Take time ahead of the rain to clear leaves and 
  debris from drainage systems. Due to the extremely saturated 
  soils, downed trees will be likely, even with sub severe 
  winds. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flood Watch means there is a potential for flooding based on
current forecasts.

You should monitor later forecasts and be alert for possible
Flood Warnings. Those living in areas prone to flooding should be
prepared to take action should flooding develop.

&&

$$
443 
WGUS62 KFFC 231605
FFAFFC

Flood Watch
National Weather Service Peachtree City GA
1105 AM EST Sat Feb 23 2019

GAZ001>009-011>016-019>023-030-241200-
/O.CON.KFFC.FA.A.0002.000000T0000Z-190224T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Dade-Walker-Catoosa-Whitfield-Murray-Fannin-Gilmer-Union-Towns-
Chattooga-Gordon-Pickens-Dawson-Lumpkin-White-Floyd-Bartow-
Cherokee-Forsyth-Hall-Polk-
Including the cities of Calhoun, Dahlonega, Cleveland, Rome, 
Cartersville, and Gainesville
1105 AM EST Sat Feb 23 2019

...FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY MORNING...

The Flood Watch continues for

* Portions of north central Georgia...northeast Georgia and 
  northwest Georgia...including the following areas...in north 
  central Georgia...Cherokee...Dawson...Fannin...Forsyth... 
  Gilmer...Hall...Lumpkin...Pickens and Union. In northeast 
  Georgia...Towns and White. In northwest Georgia...Bartow... 
  Catoosa...Chattooga...Dade...Floyd...Gordon...Murray...Polk... 
  Walker and Whitfield. 

* Through Sunday morning

* Soil conditions remain saturated and river levels remain high 
  across the area. The potential for locally heavy rainfall will 
  continue through tonight. Rainfall totals up to 1 inch, with 
  locally higher amounts possible in any stronger storms. This 
  amount of rainfall will produce significant runoff and 
  flooding of creeks and rivers. 

* Periods of heavy rain can overwhelm or clog storm drains and 
  ditches with debris and cause extensive street flooding and 
  road ponding. Take time ahead of the rain to clear leaves and 
  debris from drainage systems. Due to the extremely saturated 
  soils, downed trees will be likely, even with sub severe 
  winds. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flood Watch means there is a potential for flooding based on
current forecasts.

You should monitor later forecasts and be alert for possible
Flood Warnings. Those living in areas prone to flooding should be
prepared to take action should flooding develop.

&&

$$
659 
WGUS62 KFFC 241110
FFAFFC

Flood Watch
National Weather Service Peachtree City GA
610 AM EST Sun Feb 24 2019


GAZ001>009-011>016-019>023-030-241215-
/O.CAN.KFFC.FA.A.0002.000000T0000Z-190224T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Dade-Walker-Catoosa-Whitfield-Murray-Fannin-Gilmer-Union-Towns-
Chattooga-Gordon-Pickens-Dawson-Lumpkin-White-Floyd-Bartow-
Cherokee-Forsyth-Hall-Polk-
Including the cities of Calhoun, Dahlonega, Cleveland, Rome, 
Cartersville, and Gainesville
610 AM EST Sun Feb 24 2019

...FLOOD WATCH IS CANCELLED...

The Flood Watch for portions of north central Georgia...northeast
Georgia and northwest Georgia has been cancelled. 

The rain has moved out of the area and therefore the Flood Watch
has been cancelled. 

$$

What forecasters said that day

The local office's own words before this flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Atlanta, GA wrote its last area forecast discussion before this flood watch went out at Feb 21, 1:15 PM EST, 59 minutes earlier.

Area forecast discussion, Feb 21, 1:15 PM EST, 59 minutes before
Area Forecast Discussion
National Weather Service Peachtree City GA
115 PM EST Thu Feb 21 2019

.UPDATE...

18z Aviation update below.

Baker

&&

.PREV DISCUSSION... /Issued 928 AM EST Thu Feb 21 2019/

UPDATE...

Have some lingering quarter mile vsbys with fog this morning so
covered with a Special Weather Statement on patchy dense through
11 AM. Also given the cloud/precip trends in parts of the north
have kept afternoon temps a bit lower and slowed morning warm up
trends as well. Still expecting some increased shower/isolated TS
development this afternoon in parts of central GA then propagating
northeastward into portions of north GA. For now will continue to
hold onto Flash Flood Watch through this evening so that we can
monitor afternoon trends in coverage. Previous discussion
follows...

Baker

&&

.SHORT TERM /Today through Friday/...

Band of showers and isolated tstorms has becoming stationary. This
area of showers will begin moving northward as the next short wave
approaches from the west. This next short wave will bring an
increase in moisture across west central GA this afternoon and then
lift into north GA tonight before exiting. The stationary front
across central GA will hold into this evening, then as the surface
high builds into the northeast U.S. tonight, a backdoor front will
move across the CWA Friday wedging the CWA. There will still be
plenty of isentropic lift over the wedge and this will keep chances
of rain continuing, although amounts on Friday will be a half inch
or less.

Dense fog has developed across parts of central GA and this will
continue into mid morning. Will therefore continue the Dense Fog
Advisory for this morning.

Rainfall amounts today should remain below 1 inch across the CWA,
however with the ground already saturated, it will not take much
rainfall to push a creek or river into flood, especially with a
thunderstorm that could produce higher amounts. Will therefore
continue the Flash Flood Watch for today.

17

&&

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

The long term period begins with a wedge setting in to NE Georgia in
addition to a stalled front just north of the area. With
southwesterly flow pushing moisture into the area, chances for
showers will continue through Saturday, with the highest chances
across northern Georgia. High PWs and instability will continue the
potential for periods of heavy rain and isolated thunderstorms
across the area. With multiple rivers across northern Georgia
already in flood, concerns for river flooding and flash flooding
will continue as these rounds of precipitation impact the area,
especially across portions of northern Georgia.

Chances for showers and thunderstorms increase across the entire
area for late Saturday/Sunday as a cold front pushes through the
area on Sunday. QPF totals are currently around half and inch to
an inch with the highest totals across northern GA. With already
saturated soils across much of northern Georgia concerns for river
flooding and flash flooding will continue. After this system
clears the area late Sunday, we should see some drier weather on
Monday and for some areas part of Tuesday as high pressure pushes
into the area. Models then show a wave moving north from the gulf
into the area on late Tuesday into Wednesday, but models differ
on northward extent as well timing of the moisture across the
area. At this point have only included slight chance pops across
the area.

Temperatures through the weekend are expected to be just above
average in the 60s and 70s, aside from those within the wedge on
Saturday where highs are expected to be in the 50s. After the
weekend system, high temperatures are expected to be closer to
seasonal norms.

Reaves

&&

.AVIATION...
18Z Update...
Mainly LIFR cigs lingering across the sites (scattered higher near
KCSG), and KATL has been holding close to 300 ft. LIFR/VLIFR
vsbys with fog in the north should improve to MVFR or VFR this
afternoon as a warm front lifts northward. Shower and TS chances
increase after 19/20z this afternoon then focus shifting to the
northern sites later. There is a good chance some dense fog will
return to the sites early Friday morning so have 1/4SM with again
LIFR cigs from 09z to 15z. Winds initially light VRB for most
sites (could stay light east for KATL) then light NE to SE
overnight.

//ATL Confidence...18Z Update...
Medium on TS and SHRA coverage/timing this afternoon/evening.
Medium on extent of possible dense fog Friday AM.
High on all else.

Baker

&&

.PRELIMINARY POINT TEMPS/POPS...
Athens          64  54  58  47 /  60  70  60  50
Atlanta         64  56  63  50 /  60  70  50  50
Blairsville     61  52  56  47 /  90  80  80  70
Cartersville    61  52  62  50 /  90  60  60  60
Columbus        75  63  76  59 /  70  50  30  30
Gainesville     62  54  56  46 /  60  70  70  60
Macon           75  60  74  56 /  60  40  30  40
Rome            59  51  60  51 /  90  60  80  70
Peachtree City  68  56  67  52 /  70  70  40  40
Vidalia         80  62  79  60 /  30  40  30  40

&&

.FFC WATCHES/WARNINGS/ADVISORIES...
Flash Flood Watch until 7 PM EST this evening 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...Heard...Jackson...Lumpkin...
Murray...North Fulton...Paulding...Pickens...Polk...South
Fulton...Towns...Union...Walker...White...Whitfield.

&&

SHORT TERM...17/Baker
LONG TERM....Reaves
AVIATION...Baker
Hazardous weather outlook, Feb 21, 6:52 AM EST, 7 hours 22 minutes before
Hazardous Weather Outlook
National Weather Service Peachtree City GA
652 AM EST Thu Feb 21 2019

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-221200-
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-
652 AM EST Thu Feb 21 2019

This Hazardous Weather Outlook is for portions of North and Central Georgia.

.DAY ONE...Today and Tonight...

Areas of patchy dense fog will linger across the area through
late morning.

Showers and isolated thunderstorms are expected to continue to impact
the area through this afternoon and evening. The main hazards
with any storm will be gusty winds and heavy rainfall.

The Flash Flood Watch continues until this evening for most of
North Georgia including the Atlanta metro, where 1 to 2 with
locally higher amounts are possible. As a result of multiple
periods with heavy rainfall, nearly all the rain that will fall
will be converted to runoff and some localized flooding of creeks
and streams may be possible across portions of northern Georgia.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday...

An increased threat for river and stream flooding will continue
through the week and weekend as rain falls over saturated
grounds. Localized flash flooding will also be possible,
especially over the complex terrain of north Georgia. Make sure to
stay tuned to the latest forecasts and updates each day for any
changes to the forecast.

In addition, there is a chance of thunderstorms on Saturday and
Sunday

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed through tonight.

The office that day

Everything else NWS Atlanta, GA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 20, 8:05 PM ESTSpecial Weather StatementFFCBarrow, Walton25 min
Feb 20, 9:20 PM ESTRiver Flood WarningFFCChattooga15 hr
Feb 20, 9:42 PM ESTSpecial Weather StatementFFCForsyth, Hall33 min
Feb 20, 10:10 PM ESTSpecial Weather StatementFFCRockdale35 min
Feb 20, 10:38 PM ESTSpecial Weather StatementFFCHeard52 min
Feb 20, 11:31 PM ESTSpecial Weather StatementFFCClayton, Fayette29 min
Feb 20, 11:56 PM ESTRiver Flood WarningFFCCobb51 min
Feb 21, 12:30 AM ESTSpecial Weather StatementFFCCherokee, Dawson30 min
Feb 21, 12:54 AM ESTSpecial Weather StatementFFCClayton, Rockdale36 min
Feb 21, 1:06 AM ESTDense Fog AdvisoryFFCBaldwin, Bibb, Bleckley, Butts, Crawford, Crisp and 34 more6 hr
Feb 21, 1:19 AM ESTRiver Flood WarningFFCDawson, Forsyth17 hr
Feb 21, 1:24 AM ESTSpecial Weather StatementFFCRockdale, Walton21 min
Feb 21, 3:06 AM ESTRiver Flood WarningFFCForsyth19 hr
Feb 21, 4:02 AM ESTRiver Flood WarningFFCCherokee65 hr
Feb 21, 5:38 AM ESTRiver Flood WarningFFCFloyd6 days
Feb 21, 6:02 AM ESTRiver Flood WarningFFCCobb3 hr
Feb 21, 6:19 AM ESTRiver Flood WarningFFCCherokee35 hr
Feb 21, 6:48 AM ESTRiver Flood WarningFFCCherokee, Cobb5 hr
Feb 21, 7:33 AM ESTRiver Flood WarningFFCCherokee12 hr
Feb 21, 8:07 AM ESTRiver Flood WarningFFCGwinnett46 min
Feb 21, 10:02 AM ESTRiver Flood WarningFFCCherokee, Forsyth10 hr
Feb 21, 10:12 AM ESTRiver Flood WarningFFCCobb10 hr
Feb 21, 12:19 PM ESTRiver Flood WarningFFCGwinnett9 hr
Feb 21, 12:24 PM ESTRiver Flood WarningFFCMurray, Whitfield4 days
Feb 21, 1:11 PM ESTRiver Flood WarningFFCGordon4 days
Feb 21, 2:44 PM ESTRiver Flood WarningFFCClarke, Greene, Oconee59 hr
Feb 21, 5:34 PM ESTRiver Flood WarningFFCCoweta, Fayette, Spalding7 hr
Feb 21, 5:56 PM ESTSpecial Weather StatementFFCHarris49 min
Feb 21, 6:07 PM ESTTornado WarningFFCHarris, Meriwether, Talbot38 min
Feb 21, 6:39 PM ESTTornado WarningFFCMeriwether17 min

Nearby

Flood Watches in Georgia, 2019Every flood watch in 2019

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.