Alert archive / Georgia / Flash Flood Warnings in 2016
Flash Flood Warning 10, NWS Atlanta, GA
NWS Atlanta, GA issued this flash flood warning at Aug 24, 2016, 2:02 PM EDT for Clayton County, DeKalb County, Henry 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 24, 2016, 2:02 PM EDT (18:02 UTC)
- Expired
- Aug 24, 2016, 8:00 PM EDT
- In force
- 6 hr
- Issued by
- NWS Atlanta, GA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Clayton County, GA, DeKalb County, GA, Henry County, GA
The radar
The Atlanta radar (KFFC), 50 km from the middle of the area, began a volume at 18:04 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, 6.0 hours before the alert went out and 46 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
- 137 J/kg
- Mixed-layer CIN
- -39 J/kg
- Mixed-layer LCL
- 731 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- -22 m²/s²
- 0-3 km storm-relative helicity
- 51 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
641
WGUS52 KFFC 241802
FFWFFC
GAC063-089-151-250000-
/O.NEW.KFFC.FF.W.0010.160824T1802Z-160825T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
202 PM EDT WED AUG 24 2016
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHEASTERN CLAYTON COUNTY IN NORTH CENTRAL GEORGIA...
NORTH CENTRAL HENRY COUNTY IN NORTH CENTRAL GEORGIA...
DEKALB COUNTY IN NORTH CENTRAL GEORGIA...
* UNTIL 800 PM EDT
* AT 201 PM EDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA. UP TO TWO INCHES OF RAIN HAVE
ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
ATLANTA...DECATUR...FOREST PARK...CLARKSTON...MORROW...
STONE MOUNTAIN...AVONDALE ESTATES...LAKE CITY...LITHONIA...
PINE LAKE...DRUID HILLS...NORTH DECATUR...CANDLER-MCAFEE...
BELVEDERE PARK...NORTH DRUID HILLS...TUCKER...SNAPFINGER...
ARABIA MOUNTAIN...BELMONT AND GRESHAM PARK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
IF YOU SEE SIGNIFICANT FLOODING CALL THE NATIONAL WEATHER SERVICE
TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6 OR TWEET US YOUR REPORT AT
NWSATLANTA.
&&
LAT...LON 3384 8423 3383 8414 3375 8406 3362 8412
3364 8415 3364 8418 3363 8418 3359 8415
3358 8414 3357 8414 3359 8434 3380 8435
$$2 follow-up statements
409
WGUS72 KFFC 242022
FFSFFC
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
422 PM EDT WED AUG 24 2016
GAC063-089-151-250000-
/O.CON.KFFC.FF.W.0010.000000T0000Z-160825T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CLAYTON GA-HENRY GA-DEKALB GA-
422 PM EDT WED AUG 24 2016
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 800 PM EDT FOR
NORTHEASTERN CLAYTON...NORTH CENTRAL HENRY AND DEKALB COUNTIES...
AT 417 PM EDT...RAIN HAD TAPERED OFF ACROSS THE WARNED AREA.
HOWEVER...RUNOFF FROM EARLIER HEAVY RAINFALL WILL CONTINUE TO AFFECT
LOCAL CREEKS AND STREAMS. FLASH FLOODING OF SMALL CREEKS AND STREAMS
REMAINS POSSIBLE.
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
ATLANTA...DECATUR...FOREST PARK...CLARKSTON...MORROW...
STONE MOUNTAIN...AVONDALE ESTATES...LAKE CITY...LITHONIA...
PINE LAKE...DRUID HILLS...NORTH DECATUR...CANDLER-MCAFEE...
BELVEDERE PARK...NORTH DRUID HILLS...TUCKER...SNAPFINGER...
ARABIA MOUNTAIN...BELMONT AND GRESHAM PARK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU SEE SIGNIFICANT FLOODING CALL THE NATIONAL WEATHER SERVICE
TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6 OR TWEET US YOUR REPORT AT
NWSATLANTA.
&&
LAT...LON 3384 8423 3383 8414 3375 8406 3362 8412
3364 8415 3364 8418 3363 8418 3359 8415
3358 8414 3357 8414 3359 8434 3380 8435
$$860
WGUS72 KFFC 242058
FFSFFC
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
458 PM EDT WED AUG 24 2016
GAC063-089-151-242108-
/O.CAN.KFFC.FF.W.0010.000000T0000Z-160825T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CLAYTON GA-HENRY GA-DEKALB GA-
458 PM EDT WED AUG 24 2016
...THE FLASH FLOOD WARNING FOR NORTHEASTERN CLAYTON...NORTH CENTRAL
HENRY AND DEKALB COUNTIES IS CANCELLED...
THE HEAVY RAIN HAS ENDED. FLOODING IS NO LONGER EXPECTED TO POSE A
THREAT. PLEASE CONTINUE TO HEED ANY REMAINING ROAD CLOSURES.
LAT...LON 3384 8423 3383 8414 3375 8406 3362 8412
3364 8415 3364 8418 3363 8418 3359 8415
3358 8414 3357 8414 3359 8434 3380 8435
$$The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 24, 12:50 PM EDT | Special Weather Statement | FFC | Madison | 40 min |
| Aug 24, 1:26 PM EDT | Special Weather Statement | FFC | DeKalb | 64 min |
| Aug 24, 2:25 PM EDT | Special Weather Statement | FFC | Cobb, Fulton | 65 min |
| Aug 24, 3:23 PM EDT | Flash Flood Warning | FFC | Clayton, Fayette, Fulton | 6 hr |
| Aug 24, 3:50 PM EDT | Special Weather Statement | FFC | Fayette | 55 min |
| Aug 24, 3:53 PM EDT | Special Weather Statement | FFC | Douglas | 67 min |
| Aug 24, 4:13 PM EDT | Flash Flood Warning | FFC | Coweta, Fayette, Meriwether, Spalding | 6 hr |
| Aug 24, 4:26 PM EDT | Special Weather Statement | FFC | Coweta | 64 min |
| Aug 24, 4:54 PM EDT | Special Weather Statement | FFC | Meriwether | 66 min |
Nearby
Flash Flood Warnings in Georgia, 2016Every flash flood warning in 2016
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.