Alert archive / Georgia / Flash Flood Watches in 2021
Flash Flood Watch 8, NWS Atlanta, GA
NWS Atlanta, GA issued this flash flood watch at Jun 21, 2021, 4:14 AM EDT for 19 counties in Georgia. It took effect at Jun 22, 2021, 2:00 AM EDT. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Jun 21, 2021, 4:14 AM EDT (08:14 UTC)
- In effect from
- Jun 22, 2021, 2:00 AM EDT
- Expired
- Jun 22, 2021, 9:48 AM EDT
- In force
- 8 hr
- Issued by
- NWS Atlanta, GA
- Flood severity
- None
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, Gilmer County, GA, Gordon 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 Northeast Alabama radar (KHTX), 136 km from the middle of the area, began a volume at 08:18 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 00:00Z, 8.2 hours before the alert went out and 137 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
- 619 J/kg
- Mixed-layer CIN
- -33 J/kg
- Mixed-layer LCL
- 1078 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 83 m²/s²
- 0-3 km storm-relative helicity
- 116 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 2.7
The text
As transmitted.
661 WGUS62 KFFC 210814 FFAFFC URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Peachtree City GA 414 AM EDT Mon Jun 21 2021 GAZ001>009-011>016-019>021-030-211615- /O.NEW.KFFC.FF.A.0008.210622T0600Z-210623T0000Z/ /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- Including the cities of , Dahlonega, Calhoun, Rome, Cleveland, and Cartersville 414 AM EDT Mon Jun 21 2021 ...FLASH FLOOD WATCH IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY EVENING... The National Weather Service in Peachtree City has issued a * Flash Flood Watch for portions of north Georgia, generally north of the metro Atlanta area. * From late tonight through Tuesday evening. * A cold front will bring periods of moderate to heavy rainfall across portions of north Georgia late tonight through Tuesday. This area has recently received between 1.5 and 2.0 inches of rain, with locally higher amounts of 3.0 to 6.0 inches. With already saturated soils, quickly accumulating rainfall will easily allow for efficient runoff and increase flash flooding potential. * Creeks and streams may rise out of their banks and inundate fields, roads, businesses and other property. Street flooding could also lead to road closures. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
5 follow-up statements
482 WGUS62 KFFC 211524 FFAFFC Flood Watch National Weather Service Peachtree City GA 1124 AM EDT Mon Jun 21 2021 GAZ001>009-011>016-019>021-030-212330- /O.CON.KFFC.FF.A.0008.210622T0600Z-210623T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Dade-Walker-Catoosa-Whitfield-Murray-Fannin-Gilmer-Union-Towns- Chattooga-Gordon-Pickens-Dawson-Lumpkin-White-Floyd-Bartow-Cherokee- Polk- Including the cities of , Dahlonega, Calhoun, Rome, Cleveland, and Cartersville 1124 AM EDT Mon Jun 21 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY EVENING... The Flash Flood Watch continues for * Flash Flood Watch for portions of north Georgia, generally north of the metro Atlanta area. * From late tonight through Tuesday evening. * A cold front will bring periods of moderate to heavy rainfall across portions of north Georgia late tonight through Tuesday. New rainfall amounts of 1 to 2.5 inches are possible. This area has recently received between 1.5 and 2.0 inches of rain, with locally higher amounts of 3.0 to 6.0 inches. With already saturated soils, quickly accumulating rainfall will easily allow for efficient runoff and increase flash flooding potential. * Creeks and streams may rise out of their banks and inundate fields, roads, businesses and other property. Street flooding could also lead to road closures. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
579 WGUS62 KFFC 211920 FFAFFC URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Peachtree City GA 320 PM EDT Mon Jun 21 2021 GAZ001>009-011>016-019>021-030-220330- /O.EXT.KFFC.FF.A.0008.210622T0600Z-210622T1800Z/ /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- Including the cities of , Dahlonega, Calhoun, Rome, Cleveland, and Cartersville 320 PM EDT Mon Jun 21 2021 ...FLASH FLOOD WATCH NOW IN EFFECT FROM 2 AM EDT TUESDAY THROUGH TUESDAY AFTERNOON... The Flash Flood Watch is now in effect for * Flash Flood Watch for portions of north Georgia, generally north of the metro Atlanta area. * From 2 AM EDT Tuesday through Tuesday afternoon. * A cold front will bring periods of moderate to heavy rainfall across portions of north Georgia late tonight through Tuesday. New rainfall amounts of 1 to 2.5 inches are possible. This area has recently received between 1.5 and 2.0 inches of rain, with locally higher amounts of 3.0 to 6.0 inches. With already saturated soils, quickly accumulating rainfall will easily allow for efficient runoff and increase flash flooding potential. * Creeks and streams may rise out of their banks and inundate fields, roads, businesses and other property. Street flooding could also lead to road closures. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
455 WGUS62 KFFC 220209 FFAFFC Flood Watch National Weather Service Peachtree City GA 1009 PM EDT Mon Jun 21 2021 GAZ001>009-011>016-019>021-030-221015- /O.CON.KFFC.FF.A.0008.210622T0600Z-210622T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Dade-Walker-Catoosa-Whitfield-Murray-Fannin-Gilmer-Union-Towns- Chattooga-Gordon-Pickens-Dawson-Lumpkin-White-Floyd-Bartow-Cherokee- Polk- Including the cities of , Dahlonega, Calhoun, Rome, Cleveland, and Cartersville 1009 PM EDT Mon Jun 21 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 2 AM EDT TONIGHT THROUGH TUESDAY AFTERNOON... The Flash Flood Watch continues for * Portions of north Georgia, generally north of the metro Atlanta area. * From 2 AM EDT Tuesday through Tuesday afternoon. * A cold front will bring periods of moderate to heavy rainfall across portions of north Georgia late tonight through Tuesday. New rainfall amounts of 1 to 2.5 inches are possible. This area has recently received between 1.5 and 2.0 inches of rain, with locally higher amounts of 3.0 to 6.0 inches. With already saturated soils, quickly accumulating rainfall will easily allow for efficient runoff and increase flash flooding potential. * Creeks and streams may rise out of their banks and inundate fields, roads, businesses and other property. Street flooding could also lead to road closures. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
340 WGUS62 KFFC 220843 FFAFFC Flood Watch National Weather Service Peachtree City GA 443 AM EDT Tue Jun 22 2021 GAZ001>009-011>016-019>021-030-221800- /O.CON.KFFC.FF.A.0008.000000T0000Z-210622T1800Z/ /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- Including the cities of , Dahlonega, Calhoun, Rome, Cleveland, and Cartersville 443 AM EDT Tue Jun 22 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... The Flash Flood Watch continues for * Portions of north Georgia, generally north of the metro Atlanta area. * Until 2 PM EDT this afternoon. * A cold front will bring periods of moderate to heavy rainfall across portions of north Georgia through this morning. New rainfall amounts of 1 to 2.5 inches are possible. This area has recently received between 1.5 and 2.0 inches of rain, with locally higher amounts of 3.0 to 6.0 inches. With already saturated soils, quickly accumulating rainfall will easily allow for efficient runoff and increase flash flooding potential. * Creeks and streams may rise out of their banks and inundate fields, roads, businesses and other property. Street flooding could also lead to road closures. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
523 WGUS62 KFFC 221348 FFAFFC Flood Watch National Weather Service Peachtree City GA 948 AM EDT Tue Jun 22 2021 GAZ001>009-011>016-019>021-030-221500- /O.CAN.KFFC.FF.A.0008.000000T0000Z-210622T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Dade-Walker-Catoosa-Whitfield-Murray-Fannin-Gilmer-Union-Towns- Chattooga-Gordon-Pickens-Dawson-Lumpkin-White-Floyd-Bartow-Cherokee- Polk- Including the cities of , Dahlonega, Calhoun, Rome, Cleveland, and Cartersville 948 AM EDT Tue Jun 22 2021 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for portions of north central Georgia, northeast Georgia and northwest Georgia, including the following areas, in north central Georgia, Cherokee, Dawson, Fannin, Gilmer, Lumpkin, Pickens and Union. In northeast Georgia, Towns and White. In northwest Georgia, Bartow, Catoosa, Chattooga, Dade, Floyd, Gordon, Murray, Polk, Walker and Whitfield has been cancelled. Flooding is no longer expected to pose a threat. Please continue to heed remaining road closures. $$
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 4:28 PM EDT | Special Weather Statement | FFC | Haralson, Polk | 32 min |
| Jun 21, 4:34 PM EDT | Special Weather Statement | FFC | Chattooga, Floyd | 26 min |
| Jun 21, 5:10 PM EDT | Special Weather Statement | FFC | Chattooga, Gordon | 35 min |
| Jun 21, 5:33 PM EDT | Special Weather Statement | FFC | Catoosa, Whitfield | 27 min |
| Jun 21, 5:42 PM EDT | Special Weather Statement | FFC | Bartow, Cherokee, Pickens | 33 min |
| Jun 21, 5:47 PM EDT | Special Weather Statement | FFC | Gilmer, Gordon, Murray | 28 min |
| Jun 21, 5:56 PM EDT | Special Weather Statement | FFC | Forsyth, Hall | 34 min |
| Jun 21, 6:22 PM EDT | Special Weather Statement | FFC | Dawson, Fannin, Gilmer, Lumpkin, Pickens | 23 min |
| Jun 21, 6:31 PM EDT | Special Weather Statement | FFC | Banks, Forsyth, Hall | 44 min |
| Jun 21, 6:47 PM EDT | Special Weather Statement | FFC | Dawson, Lumpkin, Union | 28 min |
| Jun 21, 7:19 PM EDT | Special Weather Statement | FFC | Banks, Jackson | 26 min |
| Jun 21, 7:50 PM EDT | Special Weather Statement | FFC | Towns | 25 min |
| Jun 21, 7:58 PM EDT | Special Weather Statement | FFC | Carroll | 47 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.