Alert archive / Georgia / Flash Flood Warnings in 2020
Flash Flood Warning 35, NWS Atlanta, GA
NWS Atlanta, GA issued this flash flood warning at Aug 19, 2020, 2:08 PM EDT for Dade County, Georgia. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 19, 2020, 2:08 PM EDT (18:08 UTC)
- Expired
- Aug 19, 2020, 8:15 PM EDT
- In force
- 6 hr
- Issued by
- NWS Atlanta, GA
- Area
- Storm-based polygon
- Flood severity
- None
County Dade County, GA
The radar
The Northeast Alabama radar (KHTX), 58 km from the middle of the area, began a volume at 18:10 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, 6.1 hours before the alert went out and 175 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
- 691 J/kg
- Mixed-layer CIN
- -94 J/kg
- Mixed-layer LCL
- 1065 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- -24 m²/s²
- 0-3 km storm-relative helicity
- 35 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
344
WGUS52 KFFC 191808
FFWFFC
GAC083-200015-
/O.NEW.KFFC.FF.W.0035.200819T1808Z-200820T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Peachtree City GA
208 PM EDT Wed Aug 19 2020
The National Weather Service in Peachtree City has issued a
* Flash Flood Warning for...
Southwestern Dade County in northwestern Georgia...
* Until 815 PM EDT Wednesday.
* At 208 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 3 inches of rain
have fallen. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Doppler radar.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other
drainage and low lying areas.
* Some locations that will experience flash flooding include...
mainly rural areas of Southwestern Dade County
This includes the following streams and drainages...
Mill Creek, Red River Branch, Long Branch and Lookout Creek.
Additional rainfall amounts of 1 to 2 inches are possible in the
warned area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.
&&
LAT...LON 3470 8549 3469 8549 3467 8551 3467 8554
3469 8555 3470 8555 3471 8555 3472 8554
3473 8553 3473 8552 3472 8551 3473 8549
3472 8547 3471 8548
FLASH FLOOD...RADAR INDICATED
$$The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 9:38 PM EDT | Special Weather Statement | FFC | Clayton | 52 min |
| Aug 18, 9:42 PM EDT | Severe Thunderstorm Warning | FFC | Clayton, Coweta, Douglas, Fayette, Fulton | 36 min |
| Aug 18, 9:51 PM EDT | Special Weather Statement | FFC | Sumter | 24 min |
| Aug 19, 7:44 AM EDT | Special Weather Statement | FFC | Murray | 31 min |
| Aug 19, 12:55 PM EDT | Special Weather Statement | FFC | Dade | 35 min |
| Aug 19, 1:32 PM EDT | Special Weather Statement | FFC | Dade, Walker | 28 min |
| Aug 19, 1:35 PM EDT | Special Weather Statement | FFC | Gilmer, Pickens | 25 min |
| Aug 19, 2:20 PM EDT | Special Weather Statement | FFC | Dawson | 25 min |
| Aug 19, 2:22 PM EDT | Special Weather Statement | FFC | Whitfield | 38 min |
| Aug 19, 2:24 PM EDT | Special Weather Statement | FFC | Gilmer | 36 min |
| Aug 19, 2:37 PM EDT | Severe Thunderstorm Warning | FFC | Catoosa, Whitfield | 23 min |
| Aug 19, 2:43 PM EDT | Special Weather Statement | FFC | White | 32 min |
| Aug 19, 2:50 PM EDT | Severe Thunderstorm Warning | FFC | Murray, Whitfield | 25 min |
| Aug 19, 3:11 PM EDT | Severe Thunderstorm Warning | FFC | Murray, Whitfield | 34 min |
| Aug 19, 3:13 PM EDT | Special Weather Statement | FFC | White | 32 min |
| Aug 19, 3:33 PM EDT | Special Weather Statement | FFC | Bartow | 27 min |
| Aug 19, 3:45 PM EDT | Special Weather Statement | FFC | Murray | 30 min |
| Aug 19, 3:55 PM EDT | Special Weather Statement | FFC | Bartow, Floyd, Gordon | 35 min |
| Aug 19, 4:28 PM EDT | Special Weather Statement | FFC | Chattooga, Floyd, Gordon | 32 min |
| Aug 19, 5:09 PM EDT | Special Weather Statement | FFC | Cherokee | 36 min |
| Aug 19, 5:12 PM EDT | Special Weather Statement | FFC | Carroll, Douglas | 33 min |
| Aug 19, 5:36 PM EDT | Special Weather Statement | FFC | Jackson | 24 min |
| Aug 19, 5:42 PM EDT | Special Weather Statement | FFC | Carroll, Cherokee, Cobb, Douglas, Forsyth, Fulton | 33 min |
| Aug 19, 5:51 PM EDT | Severe Thunderstorm Warning | FFC | Cherokee, Cobb, Fulton | 28 min |
| Aug 19, 5:58 PM EDT | Special Weather Statement | FFC | Jackson | 32 min |
| Aug 19, 6:28 PM EDT | Special Weather Statement | FFC | Clarke | 32 min |
| Aug 19, 6:29 PM EDT | Special Weather Statement | FFC | DeKalb, Fulton, Gwinnett | 31 min |
| Aug 19, 6:36 PM EDT | Special Weather Statement | FFC | Heard | 24 min |
| Aug 19, 6:57 PM EDT | Special Weather Statement | FFC | Clarke | 33 min |
| Aug 19, 7:05 PM EDT | Special Weather Statement | FFC | Oconee | 25 min |
| Aug 19, 7:07 PM EDT | Special Weather Statement | FFC | Coweta | 23 min |
| Aug 19, 7:08 PM EDT | Special Weather Statement | FFC | Gwinnett | 37 min |
| Aug 19, 7:18 PM EDT | Special Weather Statement | FFC | Greene | 27 min |
| Aug 19, 7:22 PM EDT | Special Weather Statement | FFC | Wilkes | 23 min |
| Aug 19, 7:28 PM EDT | Special Weather Statement | FFC | Coweta | 32 min |
| Aug 19, 7:45 PM EDT | Special Weather Statement | FFC | Greene | 30 min |
| Aug 19, 7:47 PM EDT | Special Weather Statement | FFC | Wilkes | 28 min |
| Aug 19, 7:58 PM EDT | Special Weather Statement | FFC | Coweta | 32 min |
Nearby
Flash Flood Warnings in Georgia, 2020Every flash flood warning 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.