Alert archive / Georgia / Flash Flood Warnings in 2013
Flash Flood Warning 62, NWS Atlanta, GA
NWS Atlanta, GA issued this flash flood warning at Jul 21, 2013, 7:01 PM EDT for Cobb County, Douglas County, Fulton 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
- Jul 21, 2013, 7:01 PM EDT (23:01 UTC)
- Expired
- Jul 22, 2013, 1:00 AM EDT
- In force
- 6 hr
- Issued by
- NWS Atlanta, GA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Cobb County, GA, Douglas County, GA, Fulton County, GA
The radar
The Atlanta radar (KFFC), 46 km from the middle of the area, began a volume at 23:01 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, 11.0 hours before the alert went out and 47 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
- 966 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 487 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 48 m²/s²
- 0-3 km storm-relative helicity
- 1 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
252
WGUS52 KFFC 212301
FFWFFC
GAC067-097-121-220500-
/O.NEW.KFFC.FF.W.0062.130721T2301Z-130722T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
701 PM EDT SUN JUL 21 2013
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTH CENTRAL COBB COUNTY IN NORTH CENTRAL GEORGIA
EASTERN DOUGLAS COUNTY IN NORTH CENTRAL GEORGIA
CENTRAL FULTON COUNTY IN NORTH CENTRAL GEORGIA
* UNTIL 100 AM EDT MONDAY
* AT 656 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
2.5 TO 3 INCHES OF RAIN HAD FALLEN OVER PORTIONS OF EASTERN
DOUGLAS COUNTY SINCE 5 PM EDT...WITH LOCALLY HIGHER
AMOUNTS...RESULTING IN FLASH FLOODING.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
DOUGLASVILLE...LITHIA SPRINGS...AUSTELL AND SMYRNA....INCLUDING
AREAS IN THE CHATTAHOOCHEE...SWEETWATER CREEK...SLATER MILL
CREEK...AND LITTLE BEAR CREEK BASINS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
ADDITIONAL RAINFALL AMOUNTS OF 0.5 TO 1.0 INCHES ARE POSSIBLE IN THE
WARNED AREA.
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.
IF YOU SEE SIGNIFICANT FLOODING CALL THE NATIONAL WEATHER SERVICE
TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6. YOU CAN ALSO TWEET YOUR REPORT
USING HASHTAG GAWX.
&&
LAT...LON 3379 8475 3379 8473 3380 8472 3392 8443
3381 8441 3359 8474 3362 8481 3376 8482
$$1 follow-up statement
900
WGUS72 KFFC 220243
FFSFFC
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1043 PM EDT SUN JUL 21 2013
GAC067-097-121-220251-
/O.CAN.KFFC.FF.W.0062.000000T0000Z-130722T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
COBB GA-DOUGLAS GA-FULTON GA-
1043 PM EDT SUN JUL 21 2013
...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR CENTRAL FULTON...
EASTERN DOUGLAS AND SOUTH CENTRAL COBB COUNTIES...
NATIONAL WEATHER SERVICE DOPPLER RADAR ESTIMATES INDICATE 3 TO 4
INCHES OF RAIN FELL ACROSS EASTERN DOUGLAS...WITH SLIGHTLY LOWER
AMOUNTS IN FULTON AND COBB COUNTIES. MANY OF THE RIVERS AND CREEKS
IN THE AREA THAT HAD RISEN AS A RESULT HAVE NOW CREST AND ARE ON
THEIR WAY BACK DOWN. A FEW LIGHT RAIN SHOWERS ARE STILL POSSIBLE
OVERNIGHT...WITH ADDITIONAL RAINFALL AMOUNTS GENERALLY A TENTH OF AN
INCH OR LESS. AT THIS TIME...THE RISK OF FLASH FLOODING HAS
DIMINISHED ACROSS THE AREA.
IF YOU SEE SIGNIFICANT FLOODING CALL THE NATIONAL WEATHER SERVICE
TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6. YOU CAN ALSO TWEET YOUR REPORT
USING HASHTAG GAWX.
LAT...LON 3379 8475 3379 8473 3380 8472 3392 8443
3381 8441 3359 8474 3362 8481 3376 8482
$$The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 20, 8:28 PM EDT | Special Weather Statement | FFC | Oconee, Oglethorpe | 32 min |
| Jul 21, 2:36 PM EDT | Special Weather Statement | FFC | Wheeler | 24 min |
| Jul 21, 2:40 PM EDT | Special Weather Statement | FFC | Macon | 35 min |
| Jul 21, 3:10 PM EDT | Special Weather Statement | FFC | Crisp | 35 min |
| Jul 21, 4:15 PM EDT | Special Weather Statement | FFC | Schley | 30 min |
| Jul 21, 4:26 PM EDT | Special Weather Statement | FFC | Fannin | 34 min |
| Jul 21, 5:27 PM EDT | Special Weather Statement | FFC | Meriwether | 33 min |
| Jul 21, 5:32 PM EDT | Special Weather Statement | FFC | Coweta | 28 min |
| Jul 21, 5:49 PM EDT | Special Weather Statement | FFC | Fayette | 26 min |
| Jul 21, 5:52 PM EDT | Severe Thunderstorm Warning | FFC | Coweta, Fayette | 38 min |
| Jul 21, 6:00 PM EDT | Special Weather Statement | FFC | Clayton, DeKalb, Fulton | 30 min |
| Jul 21, 6:15 PM EDT | Special Weather Statement | FFC | Henry | 30 min |
| Jul 21, 6:19 PM EDT | Severe Thunderstorm Warning | FFC | Butts, Clayton, Henry, Spalding | 41 min |
Nearby
Flash Flood Warnings in Georgia, 2013Every flash flood warning in 2013
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.