Alert archive / Georgia / Flash Flood Warnings in 2014
Flash Flood Warning 24, NWS Atlanta, GA
NWS Atlanta, GA issued this flash flood warning at Aug 9, 2014, 8:20 PM EDT for DeKalb County, Fulton County, Gwinnett County, Georgia. It was in force for 6 hr. 2 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
- Aug 9, 2014, 8:20 PM EDT (00:20 UTC)
- Expired
- Aug 10, 2014, 2:15 AM EDT
- In force
- 6 hr
- Issued by
- NWS Atlanta, GA
- Area
- Storm-based polygon
- Flood severity
- None
Counties DeKalb County, GA, Fulton County, GA, Gwinnett County, GA
The radar
The Atlanta radar (KFFC), 58 km from the middle of the area, began a volume at 00:24 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 |
|---|---|---|---|
| Aug 9, 9:30 PM EDT | FLASH FLOOD | 1 N Glen Haven, GA | MINOR FLOODING OF RESIDENTIAL YARDS OCCURRED ALONG PORTIONS OF SNAPFINGER COBB SHOAL INTRENCHMENT AND STONE MOUNTAIN CREEKS IN THE COUNTY. THE OVERFLOW OF WATER FROM SNAPFINGER CREEK FLOODED A FEW CARS ON REDAN ROAD. |
| Aug 9, 10:43 PM EDT | FLASH FLOOD | 2 Nw Glen Haven, GA | CARS UNDERWATER IN THE REDAN VILLAGE APARTMENT COMPLEX WITH ROAD IMPASSABLE. |
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, 0.3 hours before the alert went out and 55 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
- 321 J/kg
- Mixed-layer CIN
- -45 J/kg
- Mixed-layer LCL
- 1237 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- -68 m²/s²
- 0-3 km storm-relative helicity
- -3 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
546
WGUS52 KFFC 100020
FFWFFC
GAC089-121-135-100615-
/O.NEW.KFFC.FF.W.0024.140810T0020Z-140810T0615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
820 PM EDT SAT AUG 9 2014
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
* FLASH FLOOD WARNING FOR...
DEKALB COUNTY IN NORTH CENTRAL GEORGIA
NORTHEASTERN FULTON COUNTY IN NORTH CENTRAL GEORGIA
SOUTHWESTERN GWINNETT COUNTY IN NORTH CENTRAL GEORGIA
* UNTIL 215 AM EDT
* AT 813 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO LILBURN...
CHAMBLEE...NORCROSS...LAWRENCEVILLE...DULUTH...BERKELEY LAKE...
DORAVILLE...DUNWOODY...JOHNS CREEK...MILTON...SANDY SPRINGS...
ROSWELL AND ALPHARETTA
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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 OR TWEET US YOUR REPORT AT
NWSATLANTA.
&&
LAT...LON 3376 8456 3383 8445 3391 8445 3398 8437
3401 8440 3405 8441 3414 8432 3396 8397
3383 8395 3372 8406 3363 8412 3365 8418
3367 8454 3374 8458
$$2 follow-up statements
672
WGUS72 KFFC 100123
FFSFFC
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
923 PM EDT SAT AUG 9 2014
GAC089-121-135-100615-
/O.CON.KFFC.FF.W.0024.000000T0000Z-140810T0615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DEKALB GA-GWINNETT GA-FULTON GA-
923 PM EDT SAT AUG 9 2014
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 215 AM EDT FOR
NORTHEASTERN FULTON...SOUTHWESTERN GWINNETT AND DEKALB COUNTIES...
AT 918 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A THUNDERSTORM PRODUCING FLASH FLOODING OVER THE WARNED
AREA. IN ADDITION...RIVER AND STREAM SITES ACROSS THE AREA ARE
BEGINNING TO SHOW SIGNIFICANT RISES INCLUDING SNAPFINGER CREEK AT
GLEN HAVEN IN DEKALB COUNTY WHICH WILL SURPASS FLOOD STAGE SOON.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SNELLVILLE...
NORCROSS...LILBURN...LAWRENCEVILLE...DULUTH...BERKELEY LAKE...
TUCKER...DORAVILLE...CHAMBLEE...DUNWOODY...JOHNS CREEK...SANDY
SPRINGS...ROSWELL AND ALPHARETTA
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
IF YOU SEE SIGNIFICANT FLOODING CALL THE NATIONAL WEATHER SERVICE
TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6 OR TWEET US YOUR REPORT AT
NWSATLANTA.
&&
LAT...LON 3376 8456 3383 8445 3391 8445 3398 8437
3401 8440 3405 8441 3414 8432 3396 8397
3383 8395 3372 8406 3363 8412 3365 8418
3367 8454 3374 8458
$$915
WGUS72 KFFC 100316
FFSFFC
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1116 PM EDT SAT AUG 9 2014
GAC089-121-135-100615-
/O.CON.KFFC.FF.W.0024.000000T0000Z-140810T0615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DEKALB GA-GWINNETT GA-FULTON GA-
1116 PM EDT SAT AUG 9 2014
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 215 AM EDT FOR
NORTHEASTERN FULTON...SOUTHWESTERN GWINNETT AND DEKALB COUNTIES...
AT 1108 PM EDT...THE PUBLIC REPORTED A EXTENSIVE FLOODING INCLUDING
WATER OVER CARS OVER PORTIONS OF CENTRAL AND SOUTHERN DEKALB.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SNELLVILLE...
NORCROSS...LILBURN...LAWRENCEVILLE...DULUTH...BERKELEY LAKE...
TUCKER...DORAVILLE...CHAMBLEE...DUNWOODY...JOHNS CREEK...SANDY
SPRINGS...ROSWELL AND ALPHARETTA
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
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 3376 8456 3383 8445 3391 8445 3398 8437
3401 8440 3405 8441 3414 8432 3396 8397
3383 8395 3372 8406 3363 8412 3365 8418
3367 8454 3374 8458
$$The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 8:00 PM EDT | Special Weather Statement | FFC | DeKalb | 30 min |
| Aug 9, 8:27 PM EDT | Special Weather Statement | FFC | DeKalb, Gwinnett | 63 min |
| Aug 9, 8:58 PM EDT | Special Weather Statement | FFC | Forsyth, Hall | 62 min |
| Aug 9, 9:49 PM EDT | Flash Flood Warning | FFC | Dawson, Forsyth, Hall, Lumpkin | 6 hr |
| Aug 9, 9:56 PM EDT | Special Weather Statement | FFC | Baldwin | 64 min |
| Aug 9, 9:59 PM EDT | Special Weather Statement | FFC | White | 61 min |
| Aug 9, 10:25 PM EDT | Special Weather Statement | FFC | Washington | 65 min |
| Aug 10, 3:37 PM EDT | Special Weather Statement | FFC | DeKalb, Rockdale | 23 min |
| Aug 10, 3:53 PM EDT | Flash Flood Warning | FFC | DeKalb, Henry, Rockdale | 6 hr |
| Aug 10, 7:05 PM EDT | Special Weather Statement | FFC | Houston, Peach | 55 min |
| Aug 10, 7:29 PM EDT | Special Weather Statement | FFC | Crawford | 61 min |
Nearby
Flash Flood Warnings in Georgia, 2014Every flash flood warning in 2014
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.