Alert archive / Georgia / Flash Flood Warnings in 2018
Flash Flood Warning 43, NWS Atlanta, GA
NWS Atlanta, GA issued this flash flood warning at Sep 24, 2018, 1:58 PM EDT for Catoosa County, Whitfield County, Georgia. It was in force for 6 hr. 3 reports 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
- Sep 24, 2018, 1:58 PM EDT (17:58 UTC)
- Expired
- Sep 24, 2018, 8:00 PM EDT
- In force
- 6 hr
- Issued by
- NWS Atlanta, GA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Catoosa County, GA, Whitfield County, GA
The radar
The Northeast Alabama radar (KHTX), 91 km from the middle of the area, began a volume at 17:59 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 |
|---|---|---|---|
| Sep 24, 3:00 PM EDT | FLASH FLOOD | 2 E Graysville, GA | ROAD CLOSED DUE TO FLOODING ON SWANSON RD AT INTERSECTION WITH HWY 151. |
| Sep 24, 3:00 PM EDT | FLASH FLOOD | 2 Ese Boynton, GA | HOLCOMB RD CLOSED IN TWO DIFFERENT LOCATIONS DUE TO FLOODING. |
| Sep 24, 3:00 PM EDT | FLASH FLOOD | 2 Wsw Ringgold, GA | ROAD CLOSED DUE TO FLOODING ON POPLAR SPRINGS RD AT INTERSRCTION WITH BONNER RD. |
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 12:00Z, 6.0 hours before the alert went out and 169 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
- 209 J/kg
- Mixed-layer CIN
- -33 J/kg
- Mixed-layer LCL
- 663 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 52 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
429
WGUS52 KFFC 241758
FFWFFC
GAC047-313-250000-
/O.NEW.KFFC.FF.W.0043.180924T1758Z-180925T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Peachtree City GA
158 PM EDT MON SEP 24 2018
The National Weather Service in Peachtree City has issued a
* Flash Flood Warning for...
Catoosa County in northwestern Georgia...
Central Whitfield County in northwestern Georgia...
* Until 800 PM EDT Monday.
* At 156 PM EDT, Doppler radar indicated heavy rain across the warned
area. Up to three inches of rain have already fallen. Flash
flooding is expected to begin shortly.
* Some locations that will experience flooding include...
Dalton, Ringgold, Varnell, Tunnel Hill, Cohutta, Mill Creek, Wood
Station, Rocky Face, Graysville, Red Clay State Park, Indian
Springs and Apison.
Additional rainfall amounts up to two inches are possible in the
warned area.
This includes the following streams and drainages...Little
Chickamauga Creek...Tiger Creek...Haig Mill Creek...Little Tiger
Creek...East Chickamauga Creek...Kenyon Creek...Hopkins Branch...
Hurricane Creek...Mill Creek...Drowning Bear Creek...Pitner Branch...
Dry Creek...Coahulla Creek...Tar Creek...Stone Branch...Johnson
Branch...Tanyard Creek...Peavine Creek...Peters Branch and Cat Creek.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, country roads, farmland, and other low lying
spots.
&&
LAT...LON 3478 8496 3473 8502 3473 8516 3476 8515
3477 8515 3477 8516 3478 8516 3477 8520
3480 8520 3499 8515 3499 8495
$$1 follow-up statement
518
WGUS72 KFFC 242351
FFSFFC
Flash Flood Statement
National Weather Service Peachtree City GA
751 PM EDT MON SEP 24 2018
GAC047-313-250000-
/O.EXP.KFFC.FF.W.0043.000000T0000Z-180925T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Catoosa GA-Whitfield GA-
751 PM EDT MON SEP 24 2018
...THE FLASH FLOOD WARNING FOR CATOOSA AND CENTRAL WHITFIELD COUNTIES
WILL EXPIRE AT 800 PM EDT...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed any remaining road closures.
LAT...LON 3478 8496 3473 8502 3473 8516 3476 8515
3477 8515 3477 8516 3478 8516 3477 8520
3480 8520 3499 8515 3499 8495
$$The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 24, 10:52 AM EDT | Special Weather Statement | FFC | Catoosa, Chattooga, Dade, Floyd, Walker, Whitfield | 53 min |
| Sep 24, 11:33 AM EDT | Flash Flood Warning | FFC | Chattooga, Floyd, Gordon, Walker | 6 hr |
| Sep 24, 1:06 PM EDT | Special Weather Statement | FFC | Catoosa, Whitfield | 54 min |
Nearby
Flash Flood Warnings in Georgia, 2018Every flash flood warning in 2018
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.