Alert archive / Georgia / Flash Flood Watches in 2021
Flash Flood Watch 11, NWS Atlanta, GA
NWS Atlanta, GA issued this flash flood watch at Aug 30, 2021, 4:27 AM EDT for 28 counties in Georgia. It took effect at Aug 31, 2021, 8:00 AM EDT. It was in force for 15 hr.
The area
The counties it named.
The facts
- Issued
- Aug 30, 2021, 4:27 AM EDT (08:27 UTC)
- In effect from
- Aug 31, 2021, 8:00 AM EDT
- Expired
- Aug 31, 2021, 11:19 PM EDT
- In force
- 15 hr
- Issued by
- NWS Atlanta, GA
- Flood severity
- None
All 28 counties
Bartow County, GA, Carroll County, GA, Catoosa County, GA, Chattooga County, GA, Cherokee County, GA, Cobb County, GA, Coweta County, GA, Dade County, GA, Dawson County, GA, Douglas County, GA, Fannin County, GA, Floyd County, GA, Forsyth County, GA, Fulton County, GA, Gilmer County, GA, Gordon County, GA, Haralson County, GA, Heard County, GA, Lumpkin County, GA, Murray County, GA, Paulding 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), 107 km from the middle of the area, began a volume at 08:32 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 00:00Z, 8.5 hours before the alert went out and 107 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
- 857 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 1168 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 49 m²/s²
- 0-3 km storm-relative helicity
- 64 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
976 WGUS62 KFFC 300827 FFAFFC URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Peachtree City GA 427 AM EDT Mon Aug 30 2021 GAZ001>009-011>016-019>021-302100- /O.NEW.KFFC.FF.A.0011.210831T1200Z-210901T1800Z/ /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 , Dahlonega, Calhoun, Rome, Cleveland, and Cartersville 427 AM EDT Mon Aug 30 2021 ...FLASH FLOOD WATCH IN EFFECT FROM TUESDAY MORNING THROUGH WEDNESDAY AFTERNOON... The National Weather Service in Peachtree City has issued a * Flash Flood Watch 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. * From Tuesday morning through Wednesday afternoon. * Rainfall associated with Tropical Storm Ida will being to move into Northwestern Georgia Tuesday morning and expand into Northern Georgia by Tuesday afternoon. 3 to 5 inches of rain is expected through the flash flood watch area with isolated heavier amounts possible. As the remnants of Ida moves through, additional bands of rainfall may cause training of storms through Wednesday that may lead to additional flash flooding concerns. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
6 follow-up statements
134 WGUS62 KFFC 301917 FFAFFC URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Peachtree City GA 317 PM EDT Mon Aug 30 2021 GAZ030>032-041>043-310330- /O.EXA.KFFC.FF.A.0011.210831T1200Z-210901T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Polk-Paulding-Cobb-Haralson-Carroll-Douglas- Including the cities of , Marietta, Carrollton, and Douglasville 317 PM EDT Mon Aug 30 2021 ...FLASH FLOOD WATCH IN EFFECT FROM TUESDAY MORNING THROUGH WEDNESDAY AFTERNOON... The National Weather Service in Peachtree City has expanded the * Flash Flood Watch to include portions of north central Georgia and northwest Georgia, including the following areas, in north central Georgia, Cobb and Douglas. In northwest Georgia, Carroll, Haralson, Paulding and Polk. * From Tuesday morning through Wednesday afternoon. * Rainfall associated with Tropical Storm Ida will begin to move into portions of western Georgia this afternoon and expand across the rest of the area through Tuesday evening. 2 to 3 inches of rain is expected through the flash flood watch area with isolated higher amounts possible. As the remnants of Ida moves through, additional bands of rainfall may cause training of storms through Wednesday that may lead to additional flash flooding concerns. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ GAZ001>009-011>016-019>021-310330- /O.CON.KFFC.FF.A.0011.210831T1200Z-210901T1800Z/ /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 , Dahlonega, Calhoun, Rome, Cleveland, and Cartersville 317 PM EDT Mon Aug 30 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT FROM TUESDAY MORNING THROUGH WEDNESDAY AFTERNOON... The Flash 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. * From Tuesday morning through Wednesday afternoon. * Rainfall associated with Tropical Storm Ida will begin to move into portions of western Georgia this afternoon and expand across the rest of the area through Tuesday evening. 3 to 5 inches of rain is expected through the flash flood watch area with isolated higher amounts possible. As the remnants of Ida moves through, additional bands of rainfall may cause training of storms through Wednesday that may lead to additional flash flooding concerns. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
884 WGUS62 KFFC 310113 FFAFFC Flood Watch National Weather Service Peachtree City GA 913 PM EDT Mon Aug 30 2021 GAZ001>009-011>016-019>021-030>032-041>043-311000- /O.CON.KFFC.FF.A.0011.210831T1200Z-210901T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Dade-Walker-Catoosa-Whitfield-Murray-Fannin-Gilmer-Union-Towns- Chattooga-Gordon-Pickens-Dawson-Lumpkin-White-Floyd-Bartow- Cherokee-Polk-Paulding-Cobb-Haralson-Carroll-Douglas- Including the cities of Calhoun, Dahlonega, Cleveland, Rome, Cartersville, Marietta, Carrollton, and Douglasville 913 PM EDT Mon Aug 30 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 8 AM EDT TUESDAY THROUGH WEDNESDAY AFTERNOON... The Flash Flood Watch continues for * Portions of north central Georgia...northeast Georgia and northwest Georgia...including the following areas...in north central Georgia...Cherokee...Cobb...Dawson...Douglas... Fannin...Gilmer...Lumpkin...Pickens and Union. In northeast Georgia...Towns and White. In northwest Georgia...Bartow... Carroll...Catoosa...Chattooga...Dade...Floyd...Gordon... Haralson...Murray...Paulding...Polk...Walker and Whitfield. * From 8 AM EDT Tuesday through Wednesday afternoon * Rainfall associated with Tropical Depression Ida will overspread much of north and central Georgia tonight through Tuesday. Three to five inches of rain is expected across the flash flood watch area with isolated higher amounts possible. As the remnants of Ida moves through, additional bands of rainfall may cause training of storms through Wednesday that may lead to additional flash flooding concerns. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
051 WGUS62 KFFC 310757 FFAFFC URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Peachtree City GA 357 AM EDT Tue Aug 31 2021 GAZ022-033-044-052-053-312000- /O.EXA.KFFC.FF.A.0011.210831T1200Z-210901T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Forsyth-North Fulton-South Fulton-Heard-Coweta- Including the cities of , Atlanta, Newnan, and East Point 357 AM EDT Tue Aug 31 2021 ...FLASH FLOOD WATCH IN EFFECT FROM 8 AM EDT THIS MORNING THROUGH WEDNESDAY AFTERNOON... The National Weather Service in Peachtree City has expanded the * Flash Flood Watch to include portions of north central Georgia and west central Georgia, including the following areas, in north central Georgia, Forsyth, North Fulton and South Fulton. In west central Georgia, Coweta and Heard. * From 8 AM EDT this morning through Wednesday afternoon. * Rainfall associated with Tropical Depression Ida will overspread much of north and central Georgia today and into Wednesday. Three to five inches of rain is expected across the flash flood watch area with isolated higher amounts possible. As the remnants of Ida moves through, additional bands of rainfall may cause training of storms through Wednesday that may lead to additional flash flooding concerns. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ GAZ001>009-011>016-019>021-030>032-041>043-312000- /O.CON.KFFC.FF.A.0011.210831T1200Z-210901T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Dade-Walker-Catoosa-Whitfield-Murray-Fannin-Gilmer-Union-Towns- Chattooga-Gordon-Pickens-Dawson-Lumpkin-White-Floyd-Bartow-Cherokee- Polk-Paulding-Cobb-Haralson-Carroll-Douglas- Including the cities of , Dahlonega, Calhoun, Marietta, Rome, Carrollton, Cleveland, Douglasville, and Cartersville 357 AM EDT Tue Aug 31 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 8 AM EDT THIS MORNING THROUGH WEDNESDAY AFTERNOON... The Flash Flood Watch continues for * Portions of north central Georgia, northeast Georgia and northwest Georgia, including the following areas, in north central Georgia, Cherokee, Cobb, Dawson, Douglas, Fannin, Gilmer, Lumpkin, Pickens and Union. In northeast Georgia, Towns and White. In northwest Georgia, Bartow, Carroll, Catoosa, Chattooga, Dade, Floyd, Gordon, Haralson, Murray, Paulding, Polk, Walker and Whitfield. * From 8 AM EDT this morning through Wednesday afternoon. * Rainfall associated with Tropical Depression Ida will overspread much of north and central Georgia today and into Wednesday. Three to five inches of rain is expected across the flash flood watch area with isolated higher amounts possible. As the remnants of Ida moves through, additional bands of rainfall may cause training of storms through Wednesday that may lead to additional flash flooding concerns. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
575 WGUS62 KFFC 311901 FFAFFC Flood Watch National Weather Service Peachtree City GA 301 PM EDT Tue Aug 31 2021 GAZ001>009-011>016-019>022-030>033-041>044-052-053-010715- /O.CON.KFFC.FF.A.0011.000000T0000Z-210901T1800Z/ /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-Polk-Paulding-Cobb-North Fulton-Haralson-Carroll-Douglas- South Fulton-Heard-Coweta- Including the cities of , Dahlonega, Newnan, Calhoun, East Point, Marietta, Rome, Carrollton, Cleveland, Atlanta, Douglasville, and Cartersville 301 PM EDT Tue Aug 31 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY AFTERNOON... 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, Cherokee, Cobb, Dawson, Douglas, Fannin, Forsyth, Gilmer, Lumpkin, North Fulton, Pickens, South Fulton and Union. In northeast Georgia, 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 Wednesday afternoon. * Rainfall associated with the remnants of Ida will continue to fall through the evening and into the overnight hours. 1 to 2 inches of rain had fallen over north Georgia with pockets of 3 to 4 inches where heavier rainbands developed. An additional 1 to 2 inches of rain will be possible this evening through tonight with isolated heavier amounts. Additional rainfall could lead to flash flooding of already strained creeks and streams and quick build up of water in low lying areas thanks to saturated soils. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
311 WGUS62 KFFC 010055 FFAFFC Flood Watch National Weather Service Peachtree City GA 855 PM EDT Tue Aug 31 2021 GAZ011>014-019>022-030>033-041>044-052-053-010200- /O.CAN.KFFC.FF.A.0011.000000T0000Z-210901T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Chattooga-Gordon-Pickens-Dawson-Floyd-Bartow-Cherokee-Forsyth-Polk- Paulding-Cobb-North Fulton-Haralson-Carroll-Douglas-South Fulton- Heard-Coweta- Including the cities of , Cartersville, Newnan, Calhoun, East Point, Rome, Marietta, Carrollton, Atlanta, and Douglasville 855 PM EDT Tue Aug 31 2021 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for portions of north central Georgia, northwest Georgia and west central Georgia, including the following areas, in north central Georgia, Cherokee, Cobb, Dawson, Douglas, Forsyth, North Fulton, Pickens and South Fulton. In northwest Georgia, Bartow, Carroll, Chattooga, Floyd, Gordon, Haralson, Paulding and Polk. In west central Georgia, Coweta and Heard has been cancelled. The Flood Watch is cancelled. $$ GAZ001>009-015-016-010900- /O.CON.KFFC.FF.A.0011.000000T0000Z-210901T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Dade-Walker-Catoosa-Whitfield-Murray-Fannin-Gilmer-Union-Towns- Lumpkin-White- Including the cities of , Dahlonega, and Cleveland 855 PM EDT Tue Aug 31 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY AFTERNOON... The Flash Flood Watch continues for * Portions of north central Georgia, northeast Georgia and northwest Georgia, including the following areas, in north central Georgia, Fannin, Gilmer, Lumpkin and Union. In northeast Georgia, Towns and White. In northwest Georgia, Catoosa, Dade, Murray, Walker and Whitfield. * Through Wednesday afternoon. * Rainfall associated with the remnants of Ida will continue to fall through the evening and into the overnight hours. One to two inches of rain have fallen over north Georgia with pockets of three to four inches where heavier rainbands developed. An additional one half to one inch of rain will be possible this evening through tonight with isolated heavier amounts. Additional rainfall could lead to flash flooding of already strained creeks and streams and quick build up of water in low lying areas thanks to saturated soils. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
845 WGUS62 KFFC 010319 FFAFFC Flood Watch National Weather Service Peachtree City GA 1119 PM EDT Tue Aug 31 2021 GAZ001>009-015-016-010430- /O.CAN.KFFC.FF.A.0011.000000T0000Z-210901T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Dade-Walker-Catoosa-Whitfield-Murray-Fannin-Gilmer-Union-Towns- Lumpkin-White- Including the cities of , Dahlonega, and Cleveland 1119 PM EDT Tue Aug 31 2021 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for portions of north central Georgia, northeast Georgia and northwest Georgia, including the following areas, in north central Georgia, Fannin, Gilmer, Lumpkin and Union. In northeast Georgia, Towns and White. In northwest Georgia, Catoosa, Dade, Murray, Walker and Whitfield has been cancelled. The Flood Watch is cancelled. Flash flooding is no longer expected to pose a threat. However, creeks and rivers may continue to rise overnight. Please continue to heed remaining road closures. $$
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 30, 4:19 AM EDT | Flood Watch | FFC | Bartow, Catoosa, Chattooga, Cherokee, Dade, Dawson and 12 more | 1 min |
| Aug 30, 2:29 PM EDT | Special Weather Statement | FFC | Chattooga | 31 min |
| Aug 30, 2:33 PM EDT | Severe Thunderstorm Warning | FFC | Chattooga, Floyd | 30 min |
| Aug 30, 4:09 PM EDT | Special Weather Statement | FFC | Catoosa, Whitfield | 36 min |
| Aug 30, 4:11 PM EDT | Special Weather Statement | FFC | Gordon | 34 min |
| Aug 30, 4:34 PM EDT | Special Weather Statement | FFC | Pickens | 26 min |
| Aug 30, 4:41 PM EDT | Tornado Warning | FFC | Gilmer, Gordon, Pickens | 14 min |
| Aug 30, 4:44 PM EDT | Special Weather Statement | FFC | Gordon | 31 min |
| Aug 30, 5:11 PM EDT | Special Weather Statement | FFC | Gilmer, Murray, Pickens, Whitfield | 34 min |
| Aug 30, 5:29 PM EDT | Severe Thunderstorm Warning | FFC | Dawson, Fannin, Gilmer, Pickens | 31 min |
| Aug 30, 5:46 PM EDT | Special Weather Statement | FFC | Lamar | 29 min |
| Aug 30, 6:56 PM EDT | Special Weather Statement | FFC | Coweta | 34 min |
| Aug 30, 7:23 PM EDT | Special Weather Statement | FFC | Carroll | 22 min |
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.