Alert archive / Georgia / Flash Flood Warnings in 2021
Flash Flood Warning 7, NWS Atlanta, GA
NWS Atlanta, GA issued this flash flood warning at Mar 31, 2021, 7:46 AM EDT for Catoosa County, Dade County, Walker County, Georgia. It was in force for 5 hr. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Mar 31, 2021, 7:46 AM EDT (11:46 UTC)
- Expired
- Mar 31, 2021, 1:03 PM EDT
- In force
- 5 hr
- Issued by
- NWS Atlanta, GA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Catoosa County, GA, Dade County, GA, Walker County, GA
The radar
The Northeast Alabama radar (KHTX), 86 km from the middle of the area, began a volume at 11:46 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 31, 7:58 AM EDT | FLASH FLOOD | 3 Wnw Morganville, GA | MURPHY ROAD WAS REPORTED CLOSED DUE TO FLOODING NEAR THE GA/TN BORDER. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 11.8 hours before the alert went out and 174 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
- 17 J/kg
- Mixed-layer CIN
- -79 J/kg
- Mixed-layer LCL
- 998 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 55 m²/s²
- 0-3 km storm-relative helicity
- 120 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
590
WGUS52 KFFC 311146
FFWFFC
GAC047-083-295-311745-
/O.NEW.KFFC.FF.W.0007.210331T1146Z-210331T1745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Peachtree City GA
746 AM EDT Wed Mar 31 2021
The National Weather Service in Peachtree City has issued a
* Flash Flood Warning for...
Catoosa County in northwestern Georgia...
Dade County in northwestern Georgia...
Walker County in northwestern Georgia...
* Until 145 PM EDT.
* At 746 AM EDT, local law enforcement reported thunderstorms
producing heavy rain across the warned area. Up to 1 inch of rain
has fallen. Flash flooding is ongoing or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Law enforcement.
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...
Lafayette, Ringgold, Trenton, Fort Oglethorpe, Rossville,
Chickamauga, Lookout Mountain, Tunnel Hill, Noble, Rock Spring,
Cooper Heights, Linwood, Blue Spring, Beaumont, Chattanooga
Valley, Fairview, Naomi, Wood Station, Cloudland Canyon State Park
and Boynton.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3497 8560 3499 8498 3497 8498 3497 8500
3490 8501 3490 8502 3488 8501 3486 8503
3486 8506 3482 8506 3482 8513 3472 8517
3472 8505 3459 8506 3459 8553
FLASH FLOOD...OBSERVED
$$1 follow-up statement
619
WGUS72 KFFC 311703
FFSFFC
Flash Flood Statement
National Weather Service Peachtree City GA
103 PM EDT Wed Mar 31 2021
GAC047-083-295-311713-
/O.CAN.KFFC.FF.W.0007.000000T0000Z-210331T1745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Catoosa GA-Dade GA-Walker GA-
103 PM EDT Wed Mar 31 2021
...FLASH FLOOD WARNING IS CANCELLED FOR CATOOSA, DADE AND WALKER
COUNTIES...
The heavy rain has ended. Due to recent heavy rainfall, multiple
rivers remain in flood and may continue to respond to additional
precipitation. Please continue to heed remaining road closures.
A Flash Flood Watch remains in effect until 800 PM EDT Wednesday for
portions of north central Georgia...northeast Georgia and northwest
Georgia.
LAT...LON 3497 8560 3499 8498 3497 8498 3497 8500
3490 8501 3490 8502 3488 8501 3486 8503
3486 8506 3482 8506 3482 8513 3472 8517
3472 8505 3459 8506 3459 8553
$$The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 31, 7:04 AM EDT | Special Weather Statement | FFC | Catoosa, Chattooga, Dade, Walker | 41 min |
| Mar 31, 8:16 AM EDT | Flash Flood Warning | FFC | Bartow, Chattooga, Fannin, Floyd, Gilmer, Gordon and 7 more | 6 hr |
| Mar 31, 8:19 AM EDT | Special Weather Statement | FFC | Paulding | 26 min |
| Mar 31, 9:07 AM EDT | River Flood Warning | FFC | Dade | 29 hr |
| Mar 31, 9:08 AM EDT | River Flood Warning | FFC | Whitfield | 5 hr |
| Mar 31, 9:09 AM EDT | Special Weather Statement | FFC | Cobb, Douglas, Fulton | 36 min |
| Mar 31, 9:15 AM EDT | River Flood Warning | FFC | Chattooga | 27 hr |
| Mar 31, 9:15 AM EDT | River Flood Warning | FFC | Floyd | 45 hr |
| Mar 31, 9:15 AM EDT | River Flood Warning | FFC | Gordon, Murray, Whitfield | 4 days |
| Mar 31, 9:15 AM EDT | River Flood Warning | FFC | Floyd, Gordon | 4 days |
| Mar 31, 9:23 AM EDT | River Flood Warning | FFC | Catoosa | 49 hr |
| Mar 31, 9:38 AM EDT | Special Weather Statement | FFC | Gwinnett | 37 min |
| Mar 31, 9:44 AM EDT | River Flood Warning | FFC | Whitfield | 71 hr |
| Mar 31, 9:53 AM EDT | Special Weather Statement | FFC | Douglas, Fulton | 22 min |
| Mar 31, 9:54 AM EDT | River Flood Warning | FFC | Murray, Whitfield | 44 hr |
| Mar 31, 11:26 AM EDT | Special Weather Statement | FFC | Haralson, Paulding | 34 min |
| Mar 31, 11:58 AM EDT | Special Weather Statement | FFC | Carroll, Cobb, Douglas | 32 min |
| Mar 31, 1:12 PM EDT | Special Weather Statement | FFC | Fayette | 33 min |
| Mar 31, 1:31 PM EDT | River Flood Warning | FFC | Cobb | 21 days |
| Mar 31, 2:00 PM EDT | River Flood Warning | FFC | Catoosa | 19 hr |
| Mar 31, 2:21 PM EDT | River Flood Warning | FFC | Forsyth, Fulton | 21 hr |
| Mar 31, 3:00 PM EDT | Special Weather Statement | FFC | Oglethorpe | 30 min |
| Mar 31, 3:03 PM EDT | Special Weather Statement | FFC | Greene | 27 min |
| Mar 31, 3:44 PM EDT | Special Weather Statement | FFC | Chattahoochee, Marion, Stewart | 31 min |
| Mar 31, 3:59 PM EDT | Special Weather Statement | FFC | Wilkes | 31 min |
| Mar 31, 4:22 PM EDT | Freeze Watch | FFC | Banks, Barrow, Bartow, Butts, Carroll, Catoosa and 44 more | 11 hr |
| Mar 31, 4:22 PM EDT | Wind Advisory | FFC | Banks, Barrow, Bartow, Bibb, Butts, Carroll and 64 more | 27 hr |
| Mar 31, 5:08 PM EDT | Special Weather Statement | FFC | Bleckley, Dooly, Houston, Pulaski, Twiggs, Wilkinson | 37 min |
| Mar 31, 5:23 PM EDT | Special Weather Statement | FFC | Glascock, Washington | 37 min |
| Mar 31, 5:35 PM EDT | Special Weather Statement | FFC | Bleckley, Dodge, Pulaski, Wilcox | 25 min |
| Mar 31, 5:44 PM EDT | Severe Thunderstorm Warning | FFC | Laurens | 31 min |
| Mar 31, 6:05 PM EDT | Special Weather Statement | FFC | Emanuel, Treutlen, Wheeler | 25 min |
| Mar 31, 6:22 PM EDT | River Flood Warning | FFC | Murray | 7 hr |
| Mar 31, 6:30 PM EDT | Special Weather Statement | FFC | Emanuel, Montgomery, Telfair, Treutlen, Wheeler | 30 min |
| Mar 31, 7:00 PM EDT | Special Weather Statement | FFC | Emanuel, Montgomery, Telfair, Toombs | 30 min |
Nearby
Flash Flood Warnings in Georgia, 2021Every flash flood warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.