Alert archive / Georgia / Flash Flood Watches in 2021
Flash Flood Watch 5, NWS Atlanta, GA
NWS Atlanta, GA issued this flash flood watch at Mar 30, 2021, 3:07 PM EDT for 25 counties in Georgia. It took effect at Mar 30, 2021, 8:00 PM EDT. It was in force for 18 hr.
The area
The counties it named.
The facts
- Issued
- Mar 30, 2021, 3:07 PM EDT (19:07 UTC)
- In effect from
- Mar 30, 2021, 8:00 PM EDT
- Expired
- Mar 31, 2021, 2:02 PM EDT
- In force
- 18 hr
- Issued by
- NWS Atlanta, GA
- Flood severity
- None
All 25 counties
Bartow County, GA, Catoosa County, GA, Chattooga County, GA, Cherokee County, GA, Cobb County, GA, Dade County, GA, Dawson County, GA, Fannin County, GA, Floyd County, GA, Forsyth County, GA, Fulton County, GA, Gilmer County, GA, Gordon County, GA, Hall County, GA, Haralson 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), 121 km from the middle of the area, began a volume at 19:10 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, 7.1 hours before the alert went out and 121 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
- 891 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- 56 m²/s²
- 0-3 km storm-relative helicity
- 139 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
339 WGUS62 KFFC 301907 FFAFFC URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Peachtree City GA 307 PM EDT Tue Mar 30 2021 GAZ001>009-011>016-019>023-030>033-041-310315- /O.NEW.KFFC.FF.A.0005.210331T0000Z-210401T0000Z/ /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-Paulding-Cobb-North Fulton-Haralson- Including the cities of , Dahlonega, Gainesville, Calhoun, Marietta, Rome, Cleveland, Atlanta, and Cartersville 307 PM EDT Tue Mar 30 2021 ...FLASH FLOOD WATCH IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH WEDNESDAY EVENING... 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, Cobb, Dawson, Fannin, Forsyth, Gilmer, Hall, Lumpkin, North Fulton, Pickens and Union. In northeast Georgia, Towns and White. In northwest Georgia, Bartow, Catoosa, Chattooga, Dade, Floyd, Gordon, Haralson, Murray, Paulding, Polk, Walker and Whitfield. * From 8 PM EDT this evening through Wednesday evening * Rain, heavy at times, will return to north Georgia overnight tonight through the day Wednesday. Rainfall totals of 1 to 2 inches are expected with locally higher amounts to 2.5 inches. Persisting saturated soils and high streamflows, combined with these forecast rainfall amounts, will keep the risk of flash flooding high through Wednesday. 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. && $$
4 follow-up statements
015 WGUS62 KFFC 310144 FFAFFC Flood Watch National Weather Service Peachtree City GA 944 PM EDT Tue Mar 30 2021 GAZ001>009-011>016-019>023-030>033-041-311200- /O.CON.KFFC.FF.A.0005.000000T0000Z-210401T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Dade-Walker-Catoosa-Whitfield-Murray-Fannin-Gilmer-Union-Towns- Chattooga-Gordon-Pickens-Dawson-Lumpkin-White-Floyd-Bartow-Cherokee- Forsyth-Hall-Polk-Paulding-Cobb-North Fulton-Haralson- Including the cities of , Dahlonega, Gainesville, Calhoun, Marietta, Rome, Cleveland, Atlanta, and Cartersville 944 PM EDT Tue Mar 30 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH 8 PM EDT WEDNESDAY EVENING... The Flash Flood Watch continues for * Portions of north central Georgia...northeast Georgia and northwest Georgia, including the following areas, in north central Georgia, Cherokee, Cobb, Dawson, Fannin, Forsyth, Gilmer, Hall, Lumpkin, North Fulton, Pickens and Union. In northeast Georgia, Towns and White. In northwest Georgia, Bartow, Catoosa, Chattooga, Dade, Floyd, Gordon, Haralson, Murray, Paulding, Polk, Walker and Whitfield. * Through Wednesday evening * Rain, heavy at times, will return to north Georgia overnight tonight through the day Wednesday. Rainfall totals of 1 to 2 inches are expected with locally higher amounts to 2.5 inches. Persisting saturated soils and high streamflows, combined with these forecast rainfall amounts, will keep the risk of flash flooding high through Wednesday. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to Flash Flooding. Flash Flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
419 WGUS62 KFFC 310736 FFAFFC Flood Watch National Weather Service Peachtree City GA 336 AM EDT Wed Mar 31 2021 GAZ001>009-011>016-019>023-030>033-041-311545- /O.CON.KFFC.FF.A.0005.000000T0000Z-210401T0000Z/ /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-Paulding-Cobb-North Fulton-Haralson- Including the cities of , Dahlonega, Gainesville, Calhoun, Marietta, Rome, Cleveland, Atlanta, and Cartersville 336 AM EDT Wed Mar 31 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING... The Flash Flood Watch continues for * Portions of north central...northeast and northwest Georgia, including the following areas, in north central Georgia, Cherokee, Cobb, Dawson, Fannin, Forsyth, Gilmer, Hall, Lumpkin, North Fulton, Pickens and Union. In northeast Georgia, Towns and White. In northwest Georgia, Bartow, Catoosa, Chattooga, Dade, Floyd, Gordon, Haralson, Murray, Paulding, Polk, Walker and Whitfield. * Through this evening * Moderate to heavy rainfall today and tonight will produce 1 to 2.5 inches of rain over north Georgia with locally higher amounts. With already saturated soils and high streamflow levels, this expected rainfall will enhance the threat for flash flooding. 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. && $$
114 WGUS62 KFFC 311458 FFAFFC Flood Watch National Weather Service Peachtree City GA 1058 AM EDT Wed Mar 31 2021 GAZ001>009-011>016-019>023-030>033-041-312300- /O.CON.KFFC.FF.A.0005.000000T0000Z-210401T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Dade-Walker-Catoosa-Whitfield-Murray-Fannin-Gilmer-Union-Towns- Chattooga-Gordon-Pickens-Dawson-Lumpkin-White-Floyd-Bartow-Cherokee- Forsyth-Hall-Polk-Paulding-Cobb-North Fulton-Haralson- Including the cities of , Dahlonega, Gainesville, Calhoun, Marietta, Rome, Cleveland, Atlanta, and Cartersville 1058 AM EDT Wed Mar 31 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... The Flash Flood Watch continues for * Portions of north central Georgia...northeast Georgia and northwest Georgia, including the following areas, in north central Georgia, Cherokee, Cobb, Dawson, Fannin, Forsyth, Gilmer, Hall, Lumpkin, North Fulton, Pickens and Union. In northeast Georgia, Towns and White. In northwest Georgia, Bartow, Catoosa, Chattooga, Dade, Floyd, Gordon, Haralson, Murray, Paulding, Polk, Walker and Whitfield. * Until 8 PM EDT this evening * Moderate to heavy rainfall through early this evening will produce an additional inch to inch and a half of rainfall over much of north Georgia. Locally higher amounts will be possible. With already saturated soils and high streamflow levels, this expected rainfall will enhance the threat for flash flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to Flash Flooding. Flash Flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
712 WGUS62 KFFC 311802 FFAFFC Flood Watch National Weather Service Peachtree City GA 202 PM EDT Wed Mar 31 2021 GAZ001>009-011>016-019>023-030>033-041-311915- /O.CAN.KFFC.FF.A.0005.000000T0000Z-210401T0000Z/ /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-Paulding-Cobb-North Fulton-Haralson- Including the cities of , Dahlonega, Gainesville, Calhoun, Marietta, Rome, Cleveland, Atlanta, and Cartersville 202 PM EDT Wed Mar 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, Cherokee, Cobb, Dawson, Fannin, Forsyth, Gilmer, Hall, Lumpkin, North Fulton, Pickens and Union. In northeast Georgia, Towns and White. In northwest Georgia, Bartow, Catoosa, Chattooga, Dade, Floyd, Gordon, Haralson, Murray, Paulding, Polk, Walker and Whitfield has been cancelled. The Flood Watch is cancelled. River Flooding will continue to pose a threat, and given the amount of precipitation that has fallen, these rivers could be very reactive to any additional rainfall. Please continue to heed remaining road closures. $$
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.