Alert archive / Georgia / Flash Flood Watches in 2021

Flash Flood Watch 2, NWS Atlanta, GA

February 17, 202196 counties in Georgia

NWS Atlanta, GA issued this flash flood watch at Feb 17, 2021, 2:20 PM EST for 96 counties in Georgia. It took effect at Feb 17, 2021, 7:00 PM EST. It was in force for 24 hr.

The area

The counties it named.

The facts

Issued
Feb 17, 2021, 2:20 PM EST (19:20 UTC)
In effect from
Feb 17, 2021, 7:00 PM EST
Expired
Feb 18, 2021, 7:13 PM EST
In force
24 hr
Issued by
NWS Atlanta, GA
Flood severity
None
All 96 counties

Baldwin County, GA, Banks County, GA, Barrow County, GA, Bartow County, GA, Bibb County, GA, Bleckley County, GA, Butts County, GA, Carroll County, GA, Catoosa County, GA, Chattahoochee County, GA, Chattooga County, GA, Cherokee County, GA, Clarke County, GA, Clayton County, GA, Cobb County, GA, Coweta County, GA, Crawford County, GA, Crisp County, GA, Dade County, GA, Dawson County, GA, DeKalb County, GA, Dodge County, GA, Dooly County, GA, Douglas County, GA, Emanuel County, GA, Fannin County, GA, Fayette County, GA, Floyd County, GA, Forsyth County, GA, Fulton County, GA, Gilmer County, GA, Glascock County, GA, Gordon County, GA, Greene County, GA, Gwinnett County, GA, Hall County, GA, Hancock County, GA, Haralson County, GA, Harris County, GA, Heard County, GA, Henry County, GA, Houston County, GA, Jackson County, GA, Jasper County, GA, Jefferson County, GA, Johnson County, GA, Jones County, GA, Lamar County, GA, Laurens County, GA, Lumpkin County, GA, Macon County, GA, Madison County, GA, Marion County, GA, Meriwether County, GA, Monroe County, GA, Montgomery County, GA, Morgan County, GA, Murray County, GA, Muscogee County, GA, Newton County, GA, Oconee County, GA, Oglethorpe County, GA, Paulding County, GA, Peach County, GA, Pickens County, GA, Pike County, GA, Polk County, GA, Pulaski County, GA, Putnam County, GA, Rockdale County, GA, Schley County, GA, Spalding County, GA, Stewart County, GA, Sumter County, GA, Talbot County, GA, Taliaferro County, GA, Taylor County, GA, Telfair County, GA, Toombs County, GA, Towns County, GA, Treutlen County, GA, Troup County, GA, Twiggs County, GA, Union County, GA, Upson County, GA, Walker County, GA, Walton County, GA, Warren County, GA, Washington County, GA, Webster County, GA, Wheeler County, GA, White County, GA, Whitfield County, GA, Wilcox County, GA, Wilkes County, GA, Wilkinson County, GA

The radar

The Atlanta radar (KFFC), 56 km from the middle of the area, began a volume at 19:21 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, 7.3 hours before the alert went out and 50 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 2021-02-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°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 2021-02-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 126 square meters per square second.1939587897117Sfc1 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
1981 m above ground
0-6 km bulk shear
77 kt
0-1 km storm-relative helicity
126 m²/s²
0-3 km storm-relative helicity
146 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

764 
WGUS62 KFFC 171920
FFAFFC

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Peachtree City GA
220 PM EST Wed Feb 17 2021

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-181200-
/O.NEW.KFFC.FF.A.0002.210218T0000Z-210219T1200Z/
/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-Banks-Jackson-Madison-Polk-Paulding-Cobb-North Fulton-
Gwinnett-Barrow-Clarke-Oconee-Oglethorpe-Wilkes-Haralson-Carroll-
Douglas-South Fulton-DeKalb-Rockdale-Walton-Newton-Morgan-Greene-
Taliaferro-Heard-Coweta-Fayette-Clayton-Spalding-Henry-Butts-Jasper-
Putnam-Hancock-Warren-Troup-Meriwether-Pike-Upson-Lamar-Monroe-Jones-
Baldwin-Washington-Glascock-Jefferson-Harris-Talbot-Taylor-Crawford-
Bibb-Twiggs-Wilkinson-Johnson-Emanuel-Muscogee-Chattahoochee-Marion-
Schley-Macon-Peach-Houston-Bleckley-Laurens-Treutlen-Stewart-Webster-
Sumter-Dooly-Crisp-Pulaski-Wilcox-Dodge-Telfair-Wheeler-Montgomery-
Toombs-
Including the cities of , Griffin, Lumpkin, Cordele, Conyers, 
Cartersville, Vidalia, Gainesville, Calhoun, Covington, Americus, 
Swainsboro, Columbus, Newnan, Marietta, Carrollton, Atlanta, 
Decatur, Peachtree City, Dublin, Athens, Rome, Macon, Warner Robins, 
Lawrenceville, Dahlonega, East Point, Douglasville, Cleveland, and 
Milledgeville
220 PM EST Wed Feb 17 2021

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

The National Weather Service in Peachtree City has issued a

* Flash Flood Watch for much of north and central Georgia.

* From 7 PM EST this evening through Friday morning

* Widespread rainfall will spread across the area beginning tonight 
  and will shift southeastward through the day Thursday. Rainfall 
  totals of 1 to 2 inches with locally higher amounts over 2 inches 
  are expected. Previous rounds of rainfall have kept soils wet and 
  saturated which will more easily allow for runoff and potential 
  flash flooding.

* Creeks and streams may rise out of their banks and inundate 
  fields, roads, businesses and other property. Roads may be closed.

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.

&&

$$
3 follow-up statements
192 
WGUS62 KFFC 180902
FFAFFC

Flood Watch
National Weather Service Peachtree City GA
402 AM EST Thu Feb 18 2021


GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-181715-
/O.CON.KFFC.FF.A.0002.000000T0000Z-210219T1200Z/
/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-Banks-Jackson-Madison-Polk-Paulding-Cobb-
North Fulton-Gwinnett-Barrow-Clarke-Oconee-Oglethorpe-Wilkes-
Haralson-Carroll-Douglas-South Fulton-DeKalb-Rockdale-Walton-
Newton-Morgan-Greene-Taliaferro-Heard-Coweta-Fayette-Clayton-
Spalding-Henry-Butts-Jasper-Putnam-Hancock-Warren-Troup-
Meriwether-Pike-Upson-Lamar-Monroe-Jones-Baldwin-Washington-
Glascock-Jefferson-Harris-Talbot-Taylor-Crawford-Bibb-Twiggs-
Wilkinson-Johnson-Emanuel-Muscogee-Chattahoochee-Marion-Schley-
Macon-Peach-Houston-Bleckley-Laurens-Treutlen-Stewart-Webster-
Sumter-Dooly-Crisp-Pulaski-Wilcox-Dodge-Telfair-Wheeler-
Montgomery-Toombs-
Including the cities of Calhoun, Dahlonega, Cleveland, Rome, 
Cartersville, Gainesville, Marietta, Atlanta, Lawrenceville, 
Athens, Carrollton, Douglasville, East Point, Decatur, Conyers, 
Covington, Newnan, Peachtree City, Griffin, Milledgeville, Macon,
Swainsboro, Columbus, Warner Robins, Dublin, Lumpkin, Americus, 
Cordele, and Vidalia
402 AM EST Thu Feb 18 2021

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH FRIDAY MORNING...

The Flash Flood Watch continues for

* North and Central Georgia.

* Through Friday morning

* Widespread rainfall will continue across much of Georgia through
  today. An additional one to two inches of rain can be expected 
  with some locally higher amounts. 

* Creeks and streams may rise out of their banks and inundate 
  fields, roads, businesses and other property. Roads may be 
  closed. 

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.

&&

$$
043 
WGUS62 KFFC 181442
FFAFFC

Flood Watch
National Weather Service Peachtree City GA
942 AM EST Thu Feb 18 2021

GAZ001>009-011>016-019>025-027-030>039-041>060-066>071-078-079-089-
090-102-181545-
/O.CAN.KFFC.FF.A.0002.000000T0000Z-210219T1200Z/
Dade-Walker-Catoosa-Whitfield-Murray-Fannin-Gilmer-Union-Towns-
Chattooga-Gordon-Pickens-Dawson-Lumpkin-White-Floyd-Bartow-Cherokee-
Forsyth-Hall-Banks-Jackson-Madison-Polk-Paulding-Cobb-North Fulton-
Gwinnett-Barrow-Clarke-Oconee-Oglethorpe-Wilkes-Haralson-Carroll-
Douglas-South Fulton-DeKalb-Rockdale-Walton-Newton-Morgan-Greene-
Taliaferro-Heard-Coweta-Fayette-Clayton-Spalding-Henry-Butts-Jasper-
Putnam-Troup-Meriwether-Pike-Upson-Lamar-Monroe-Harris-Talbot-
Muscogee-Chattahoochee-Stewart-
Including the cities of , Griffin, Newnan, Conyers, Cartersville, 
Gainesville, Calhoun, Covington, Columbus, Lumpkin, Marietta, 
Carrollton, Atlanta, Decatur, Peachtree City, Athens, Rome, 
Lawrenceville, Dahlonega, East Point, Douglasville, and Cleveland
942 AM EST Thu Feb 18 2021

...FLASH FLOOD WATCH IS CANCELLED...

The Flash Flood Watch for all of north Georgia and portions of 
central Georgia, has been cancelled.

The Flood Watch is cancelled.

$$

GAZ061-062-072>076-080>086-091>098-103>113-191200-
/O.CON.KFFC.FF.A.0002.000000T0000Z-210219T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hancock-Warren-Jones-Baldwin-Washington-Glascock-Jefferson-Taylor-
Crawford-Bibb-Twiggs-Wilkinson-Johnson-Emanuel-Marion-Schley-Macon-
Peach-Houston-Bleckley-Laurens-Treutlen-Webster-Sumter-Dooly-Crisp-
Pulaski-Wilcox-Dodge-Telfair-Wheeler-Montgomery-Toombs-
Including the cities of , Warner Robins, Americus, Cordele, Vidalia, 
Dublin, Swainsboro, Milledgeville, and Macon
942 AM EST Thu Feb 18 2021

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH FRIDAY MORNING...

The Flash Flood Watch continues for

* Portions of eastern and central Georgia, generally along and 
  southeast of a line from Warrenton to Macon to Buena Vista.

* Through Friday morning

* Additional rainfall totals over an inch with localized additional 
  amounts approaching two inches are possible.

* Creeks and streams may rise out of their banks and inundate 
  fields, roads, and property. A few roads may be closed.

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.

&&

$$
546 
WGUS62 KFFC 190013
FFAFFC

Flood Watch
National Weather Service Peachtree City GA
713 PM EST Thu Feb 18 2021

GAZ061-062-072>076-080>086-091>098-103>113-190115-
/O.CAN.KFFC.FF.A.0002.000000T0000Z-210219T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hancock-Warren-Jones-Baldwin-Washington-Glascock-Jefferson-Taylor-
Crawford-Bibb-Twiggs-Wilkinson-Johnson-Emanuel-Marion-Schley-Macon-
Peach-Houston-Bleckley-Laurens-Treutlen-Webster-Sumter-Dooly-Crisp-
Pulaski-Wilcox-Dodge-Telfair-Wheeler-Montgomery-Toombs-
Including the cities of , Warner Robins, Americus, Cordele, Vidalia, 
Dublin, Swainsboro, Milledgeville, and Macon
713 PM EST Thu Feb 18 2021

...FLASH FLOOD WATCH IS CANCELLED...

The Flash Flood Watch for portions of central Georgia...east central 
Georgia...southeast Georgia and west central Georgia, including the 
following areas, in central Georgia, Baldwin, Bibb, Bleckley, 
Crawford, Crisp, Dodge, Dooly, Houston, Jones, Laurens, Montgomery, 
Peach, Pulaski, Telfair, Twiggs, Wheeler, Wilcox and Wilkinson. In 
east central Georgia, Emanuel, Glascock, Hancock, Jefferson, 
Johnson, Treutlen, Warren and Washington. In southeast Georgia, 
Toombs. In west central Georgia, Macon, Marion, Schley, Sumter, 
Taylor and Webster has been cancelled.

The Flood Watch is cancelled. Flooding is no longer expected to pose 
a threat.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 16, 9:02 PM ESTRiver Flood WarningFFCJohnson, Washington, Wilkinson56 hr
Feb 17, 3:55 AM ESTWinter Weather AdvisoryFFCCatoosa, Dade, Fannin, Lumpkin, Towns, Union and 2 more24 hr

Nearby

Flash Flood Watches in Georgia, 2021Every flash flood watch in 2021

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.