Alert archive / Georgia / Flash Flood Warnings in 2021
Flash Flood Warning 1, NWS Atlanta, GA
NWS Atlanta, GA issued this flash flood warning at Mar 18, 2021, 12:23 AM EDT for 10 counties in Georgia. It was in force for 7 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
- Mar 18, 2021, 12:23 AM EDT (04:23 UTC)
- Expired
- Mar 18, 2021, 7:00 AM EDT
- In force
- 7 hr
- Issued by
- NWS Atlanta, GA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Bartow County, GA, Catoosa County, GA, Chattooga County, GA, Dade County, GA, Floyd County, GA, Gordon County, GA, Murray County, GA, Polk County, GA, Walker County, GA, Whitfield County, GA
The radar
The Northeast Alabama radar (KHTX), 105 km from the middle of the area, began a volume at 04:22 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, 4.4 hours before the alert went out and 147 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
- 11 J/kg
- Mixed-layer CIN
- -161 J/kg
- Mixed-layer LCL
- 466 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 404 m²/s²
- 0-3 km storm-relative helicity
- 444 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.3
The text
As transmitted.
352
WGUS52 KFFC 180423
FFWFFC
GAC015-047-055-083-115-129-213-233-295-313-181015-
/O.NEW.KFFC.FF.W.0001.210318T0423Z-210318T1015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Peachtree City GA
1223 AM EDT Thu Mar 18 2021
The National Weather Service in Peachtree City has issued a
* Flash Flood Warning for...
Bartow County in northwestern Georgia...
Catoosa County in northwestern Georgia...
Chattooga County in northwestern Georgia...
Dade County in northwestern Georgia...
Floyd County in northwestern Georgia...
Gordon County in northwestern Georgia...
Murray County in northwestern Georgia...
Northwestern Polk County in northwestern Georgia...
Walker County in northwestern Georgia...
Whitfield County in northwestern Georgia...
* Until 615 AM EDT.
* At 1223 AM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 1.5 inches of
rain have fallen. With already saturated soils. 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...
Rome, Dalton, Cartersville, Calhoun, Cedartown, Lafayette,
Summerville, Chatsworth, Ringgold, Trenton, Fort Oglethorpe,
Adairsville, Euharlee, Chickamauga, Trion, Varnell, Lookout
Mountain, Aragon, Cave Spring and Eton.
Additional rainfall amounts of 1 to 2 inches are possible in the
warned area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Please report flooding to your local law enforcement agency when you
can do so safely.
&&
LAT...LON 3497 8560 3497 8462 3478 8463 3472 8466
3458 8465 3415 8476 3390 8539
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-2 INCHES IN 3 HOURS
$$3 follow-up statements
918
WGUS52 KFFC 180820
FFWFFC
GAC015-047-055-083-115-129-213-233-295-313-181100-
/O.EXT.KFFC.FF.W.0001.000000T0000Z-210318T1100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Peachtree City GA
420 AM EDT Thu Mar 18 2021
The National Weather Service in Peachtree City has extended the
* Flash Flood Warning for...
Bartow County in northwestern Georgia...
Catoosa County in northwestern Georgia...
Chattooga County in northwestern Georgia...
Dade County in northwestern Georgia...
Floyd County in northwestern Georgia...
Gordon County in northwestern Georgia...
Murray County in northwestern Georgia...
Northwestern Polk County in northwestern Georgia...
Walker County in northwestern Georgia...
Whitfield County in northwestern Georgia...
* Until 700 AM EDT.
* At 420 AM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 2 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...
Rome, Dalton, Cartersville, Calhoun, Cedartown, Lafayette,
Summerville, Chatsworth, Ringgold, Trenton, Fort Oglethorpe,
Adairsville, Euharlee, Chickamauga, Trion, Varnell, Lookout
Mountain, Aragon, Cave Spring and Eton.
Additional rainfall amounts up to 1 inch are possible in the warned
area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Please report flooding to your local law enforcement agency when you
can do so safely.
&&
LAT...LON 3497 8560 3497 8462 3478 8463 3472 8466
3458 8465 3415 8476 3390 8539
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...0.25-1 INCH IN 3 HOURS
$$337
WGUS72 KFFC 181020
FFSFFC
Flash Flood Statement
National Weather Service Peachtree City GA
620 AM EDT Thu Mar 18 2021
GAC047-055-083-295-181030-
/O.CAN.KFFC.FF.W.0001.000000T0000Z-210318T1100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Catoosa GA-Chattooga GA-Dade GA-Walker GA-
620 AM EDT Thu Mar 18 2021
...FLASH FLOOD WARNING IS CANCELLED FOR CATOOSA, CHATTOOGA, DADE AND
WALKER COUNTIES...
Flooding is no longer expected to pose a threat. Please continue to
heed remaining road closures.
A Flash Flood Watch remains in effect until 800 AM EDT for portions
of north central Georgia and northwest Georgia.
LAT...LON 3429 8546 3429 8539 3436 8533 3444 8518
3459 8511 3459 8506 3472 8505 3472 8517
3482 8513 3482 8506 3486 8506 3488 8501
3497 8500 3497 8462 3478 8463 3472 8466
3456 8465 3415 8476 3390 8539
$$
GAC015-115-129-213-233-313-181100-
/O.CON.KFFC.FF.W.0001.000000T0000Z-210318T1100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Bartow GA-Floyd GA-Gordon GA-Murray GA-Polk GA-Whitfield GA-
620 AM EDT Thu Mar 18 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 7 AM EDT THIS MORNING
FOR BARTOW, FLOYD, GORDON, MURRAY, NORTHWESTERN POLK AND WHITFIELD
COUNTIES...
At 620 AM EDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Between 1 and 2 inches of rain have
fallen. Flash flooding is ongoing or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Doppler radar.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other
drainage and low lying areas.
Some locations that will experience flash flooding include...
Rome, Dalton, Cartersville, Calhoun, Cedartown, Chatsworth,
Adairsville, Euharlee, Varnell, Aragon, Cave Spring, Eton, Tunnel
Hill, White, Cohutta, Kingston, Resaca, Plainville, Taylorsville
and Shannon.
Additional rainfall amounts up to 1 inch are possible in the warned
area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Please report flooding to your local law enforcement agency when you
can do so safely.
&&
LAT...LON 3429 8546 3429 8539 3436 8533 3444 8518
3459 8511 3459 8506 3472 8505 3472 8517
3482 8513 3482 8506 3486 8506 3488 8501
3497 8500 3497 8462 3478 8463 3472 8466
3456 8465 3415 8476 3390 8539
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...0.25-1 INCH IN 3 HOURS
$$740
WGUS72 KFFC 181100
FFSFFC
Flash Flood Statement
National Weather Service Peachtree City GA
700 AM EDT Thu Mar 18 2021
GAC015-115-129-213-233-313-181110-
/O.EXP.KFFC.FF.W.0001.000000T0000Z-210318T1100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Bartow GA-Floyd GA-Gordon GA-Murray GA-Polk GA-Whitfield GA-
700 AM EDT Thu Mar 18 2021
...FLASH FLOOD WARNING HAS EXPIRED FOR BARTOW, FLOYD, GORDON,
MURRAY, NORTHWESTERN POLK AND WHITFIELD COUNTIES...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
A Flash Flood Watch remains in effect until 800 AM EDT for portions
of north central Georgia and northwest Georgia.
LAT...LON 3429 8546 3429 8539 3436 8533 3444 8518
3459 8511 3459 8506 3472 8505 3472 8517
3482 8513 3482 8506 3486 8506 3488 8501
3497 8500 3497 8462 3478 8463 3472 8466
3456 8465 3415 8476 3390 8539
$$The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 17, 8:01 PM EDT | Severe Thunderstorm Warning | FFC | Houston, Twiggs | 29 min |
| Mar 17, 11:32 PM EDT | River Flood Warning | FFC | Walker | 12 hr |
| Mar 18, 12:12 AM EDT | Severe Thunderstorm Warning | FFC | Bartow, Chattooga, Floyd, Gordon, Haralson, Paulding and 1 more | 48 min |
| Mar 18, 12:44 AM EDT | Special Weather Statement | FFC | Chattahoochee, Harris, Muscogee, Stewart | 31 min |
| Mar 18, 1:01 AM EDT | Special Weather Statement | FFC | Bartow, Cherokee, Haralson, Paulding, Polk | 29 min |
| Mar 18, 2:12 AM EDT | River Flood Warning | FFC | Catoosa | 22 hr |
| Mar 18, 3:21 AM EDT | River Flood Warning | FFC | Murray, Whitfield | 47 hr |
| Mar 18, 4:09 AM EDT | Wind Advisory | FFC | Baldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 90 more | 16 hr |
| Mar 18, 9:34 AM EDT | Special Weather Statement | FFC | Crisp, Dooly | 26 min |
| Mar 18, 9:57 AM EDT | Special Weather Statement | FFC | Pulaski | 33 min |
| Mar 18, 10:32 AM EDT | Special Weather Statement | FFC | Dodge | 28 min |
| Mar 18, 10:58 AM EDT | Special Weather Statement | FFC | Johnson, Laurens | 32 min |
| Mar 18, 11:07 AM EDT | Special Weather Statement | FFC | Dodge | 23 min |
| Mar 18, 2:38 PM EDT | River Flood Warning | FFC | Gwinnett | 3 hr |
| Mar 18, 7:13 PM EDT | River Flood Warning | FFC | Floyd | 20 hr |
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.