Alert archive / Georgia / Flash Flood Watches in 2020
Flash Flood Watch 3, NWS Atlanta, GA
NWS Atlanta, GA issued this flash flood watch at Feb 10, 2020, 11:41 AM EST for 43 counties in Georgia. It took effect at Feb 10, 2020, 1:00 PM EST. It was in force for 21 hr.
The area
The counties it named.
The facts
- Issued
- Feb 10, 2020, 11:41 AM EST (16:41 UTC)
- In effect from
- Feb 10, 2020, 1:00 PM EST
- Expired
- Feb 11, 2020, 10:23 AM EST
- In force
- 21 hr
- Issued by
- NWS Atlanta, GA
- Flood severity
- None
All 43 counties
Banks County, GA, Barrow County, GA, Bartow County, GA, Carroll County, GA, Catoosa County, GA, Chattooga County, GA, Cherokee County, GA, Clarke County, GA, Clayton County, GA, Cobb County, GA, Coweta County, GA, Dade County, GA, Dawson County, GA, DeKalb County, GA, Douglas County, GA, Fannin County, GA, Fayette County, GA, Floyd County, GA, Forsyth County, GA, Fulton County, GA, Gilmer County, GA, Gordon County, GA, Gwinnett County, GA, Hall County, GA, Haralson County, GA, Heard County, GA, Henry County, GA, Jackson County, GA, Lumpkin County, GA, Madison County, GA, Murray County, GA, Newton County, GA, Oconee County, GA, Paulding County, GA, Pickens County, GA, Polk County, GA, Rockdale County, GA, Towns County, GA, Union County, GA, Walker County, GA, Walton County, GA, White County, GA, Whitfield County, GA
The radar
The Atlanta radar (KFFC), 90 km from the middle of the area, began a volume at 16:44 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, 4.7 hours before the alert went out and 88 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 696 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 389 m²/s²
- 0-3 km storm-relative helicity
- 489 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
542 WGUS62 KFFC 101641 FFAFFC URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Peachtree City GA 1141 AM EST Mon Feb 10 2020 GAZ001>009-011>016-019>025-027-030>037-041>047-055-110045- /O.CAN.KFFC.FA.A.0003.200210T1800Z-200212T0000Z/ /O.NEW.KFFC.FF.A.0003.200210T1800Z-200212T0000Z/ /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-Haralson-Carroll- Douglas-South Fulton-DeKalb-Rockdale-Walton-Clayton- Including the cities of Calhoun, Dahlonega, Cleveland, Rome, Cartersville, Gainesville, Marietta, Atlanta, Lawrenceville, Athens, Carrollton, Douglasville, East Point, Decatur, and Conyers 1141 AM EST Mon Feb 10 2020 ...FLASH FLOOD WATCH IN EFFECT THROUGH TUESDAY EVENING... The National Weather Service in Peachtree City has issued a * Flash Flood Watch for much of north Georgia...generally north of a Franklin to Jonesboro to Athens line. * Through Tuesday evening * The first round of heavy rain will be moving in this afternoon and continue through midday Tuesday. Two to four inches of rain is expected with local amounts approaching six inches. With saturated soil and very high streamflow, runoff from the heavy rain will be enhanced, leading to a greater threat of flash flooding. * Flash flooding and minor to moderate flooding of larger creeks and rivers is expected. This will close some roads and could flood homes and businesses in flood-prone areas. Along larger creeks and rivers, flooding could last for several days. 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. && This Flash Flood Watch replaces the Flood Watch issued for much of north Georgia. $$ GAZ048-052>054-057-110045- /O.NEW.KFFC.FF.A.0003.200210T1800Z-200212T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Newton-Heard-Coweta-Fayette-Henry- Including the cities of Covington, Newnan, and Peachtree City 1141 AM EST Mon Feb 10 2020 ...FLASH FLOOD WATCH IN EFFECT THROUGH TUESDAY EVENING... The National Weather Service in Peachtree City has issued a * Flash Flood Watch for portions of north central Georgia and west central Georgia...including the following areas...in north central Georgia...Fayette...Henry and Newton. In west central Georgia...Coweta and Heard. * Through Tuesday evening * The first round of heavy rain will be moving in this afternoon and continue through midday Tuesday. Two to three inches of rain is expected with locally higher amounts. With saturated soil and very high streamflow, runoff from the heavy rain will be enhanced, leading to a greater threat of flash flooding. * Flash flooding and minor to moderate flooding of larger creeks and rivers is expected. This will close some roads and could flood homes and businesses in flood-prone areas. Along larger creeks and rivers, flooding could last for several days. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
3 follow-up statements
897 WGUS62 KFFC 110100 FFAFFC Flood Watch National Weather Service Peachtree City GA 800 PM EST Mon Feb 10 2020 GAZ001>009-011>016-019>025-027-030>037-041>048-052>055-057-111100- /O.CON.KFFC.FF.A.0003.000000T0000Z-200212T0000Z/ /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-Haralson-Carroll- Douglas-South Fulton-DeKalb-Rockdale-Walton-Newton-Heard-Coweta- Fayette-Clayton-Henry- Including the cities of Calhoun, Dahlonega, Cleveland, Rome, Cartersville, Gainesville, Marietta, Atlanta, Lawrenceville, Athens, Carrollton, Douglasville, East Point, Decatur, Conyers, Covington, Newnan, and Peachtree City 800 PM EST Mon Feb 10 2020 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH TUESDAY EVENING... The Flash Flood Watch continues for * Portions of north central Georgia...northeast Georgia... northwest Georgia and west central Georgia...including the following areas...in north central Georgia...Barrow... Cherokee...Clayton...Cobb...Dawson...DeKalb...Douglas... Fannin...Fayette...Forsyth...Gilmer...Gwinnett...Hall... Henry...Lumpkin...Newton...North Fulton...Pickens...Rockdale... South Fulton...Union and Walton. In northeast Georgia... Banks...Clarke...Jackson...Madison...Oconee...Towns and White. In northwest Georgia...Bartow...Carroll...Catoosa... Chattooga...Dade...Floyd...Gordon...Haralson...Murray... Paulding...Polk...Walker and Whitfield. In west central Georgia...Coweta and Heard. * Through Tuesday evening * The first round of moderate to heavy rain began moving across the region Monday afternoon and will continue through midday Tuesday. Two to three inches of total rain is expected with locally higher amounts. With saturated soils and very high streamflows already in place across the region, runoff from the additional rain will be enhanced, leading to a greater threat of flash flooding. * Flash flooding and minor to moderate flooding of larger creeks and rivers is expected. This will close some roads and could flood homes and businesses in flood-prone areas. Along larger creeks and rivers, flooding could last for several days. 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. && $$
818 WGUS62 KFFC 110820 FFAFFC Flood Watch National Weather Service Peachtree City GA 320 AM EST Tue Feb 11 2020 GAZ001>009-011>016-019>025-027-030>037-041>048-052>055-057-111630- /O.CON.KFFC.FF.A.0003.000000T0000Z-200212T0000Z/ /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-Haralson-Carroll- Douglas-South Fulton-DeKalb-Rockdale-Walton-Newton-Heard-Coweta- Fayette-Clayton-Henry- Including the cities of Calhoun, Dahlonega, Cleveland, Rome, Cartersville, Gainesville, Marietta, Atlanta, Lawrenceville, Athens, Carrollton, Douglasville, East Point, Decatur, Conyers, Covington, Newnan, and Peachtree City 320 AM EST Tue Feb 11 2020 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING... The Flash Flood Watch continues for * Portions of north central Georgia...northeast Georgia... northwest Georgia and west central Georgia...including the following areas...in north central Georgia...Barrow... Cherokee...Clayton...Cobb...Dawson...DeKalb...Douglas... Fannin...Fayette...Forsyth...Gilmer...Gwinnett...Hall... Henry...Lumpkin...Newton...North Fulton...Pickens...Rockdale... South Fulton...Union and Walton. In northeast Georgia... Banks...Clarke...Jackson...Madison...Oconee...Towns and White. In northwest Georgia...Bartow...Carroll...Catoosa... Chattooga...Dade...Floyd...Gordon...Haralson...Murray... Paulding...Polk...Walker and Whitfield. In west central Georgia...Coweta and Heard. * Through this evening * Moderate to heavy rain will continue today across portions of north Georgia. An additional one to two inches of rainfall can be expected with some locally higher amounts possible. With saturated soils and very high streamflows already in place across the region, runoff from the additional rain will be enhanced, leading to a greater threat of flash flooding. * Flash flooding and minor to moderate flooding of larger creeks and rivers is expected. This will close some roads and could flood homes and businesses in flood-prone areas. Along larger creeks and rivers, flooding could last for several days. 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. && $$
272 WGUS62 KFFC 111523 FFAFFC Flood Watch National Weather Service Peachtree City GA 1023 AM EST Tue Feb 11 2020 GAZ001>009-011>016-019>025-027-030>037-041>048-052>055-057-111630- /O.CAN.KFFC.FF.A.0003.000000T0000Z-200212T0000Z/ /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-Haralson-Carroll- Douglas-South Fulton-DeKalb-Rockdale-Walton-Newton-Heard-Coweta- Fayette-Clayton-Henry- Including the cities of Calhoun, Dahlonega, Cleveland, Rome, Cartersville, Gainesville, Marietta, Atlanta, Lawrenceville, Athens, Carrollton, Douglasville, East Point, Decatur, Conyers, Covington, Newnan, and Peachtree City 1023 AM EST Tue Feb 11 2020 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for portions of north central Georgia... northeast Georgia...northwest Georgia and west central Georgia has been cancelled. A quarter inch to a half inch of additional rainfall is expected throughout the remainder of the day. Flooding of rivers, streams, and creeks will continue through the remainder of the week. $$
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 10, 10:51 AM EST | River Flood Warning | FFC | Catoosa | 67 hr |
| Feb 10, 10:55 AM EST | River Flood Warning | FFC | Chattooga | 27 hr |
| Feb 10, 11:32 AM EST | River Flood Warning | FFC | Forsyth, Fulton | 56 hr |
| Feb 10, 2:21 PM EST | River Flood Warning | FFC | DeKalb, Rockdale | 51 hr |
| Feb 10, 2:21 PM EST | River Flood Warning | FFC | Newton, Rockdale | 63 hr |
| Feb 10, 5:52 PM EST | Special Weather Statement | FFC | Heard, Troup | 23 min |
Nearby
Flash Flood Watches in Georgia, 2020Every flash flood watch in 2020
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.