Alert archive / Georgia / Flash Flood Warnings in 2013
Flash Flood Warning 92, NWS Atlanta, GA
NWS Atlanta, GA issued this flash flood warning at Aug 21, 2013, 11:51 AM EDT for DeKalb 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 21, 2013, 11:51 AM EDT (15:51 UTC)
- Expired
- Aug 21, 2013, 5:45 PM EDT
- In force
- 6 hr
- Issued by
- NWS Atlanta, GA
- Area
- Storm-based polygon
- Flood severity
- None
County DeKalb County, GA
The radar
The Atlanta radar (KFFC), 63 km from the middle of the area, began a volume at 15:53 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 21, 12:35 PM EDT | FLASH FLOOD | 2 Nne Stone Mountain, GA | THE STAGE HEIGHT AT A USGS STREAM GAGE ON STONE MOUNTAIN CREEK AT SILVER HILL ROAD REACHED FLOOD STAGE OF 9 FEET. THE CREEK CREST AT 9.1 FEET. MINOR FLOODING OCCURRED IN THE WOODLANDS AND RESIDENTIAL YARDS ALONG THE CREEK. |
| Aug 21, 12:35 PM EDT | FLASH FLOOD | 2 Sse Tucker, GA | A PORTION OF SNAPFINGER CREEK CAME OUT OF ITS BANKS AND FLOODED A HOME OFF ROWLAND ROAD WITH AROUND ONE INCH OF WATER. THE SOUTH FORK PEACHTREE CREEK FLOODED PORTIONS OF MEDLOCK PARK AND ATHLETIC FIELDS WITH UP TO 3 FEET OF WATER. THREE HOMES ON SCOTT CIRCLE N |
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, 3.9 hours before the alert went out and 59 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
- 873 J/kg
- Mixed-layer CIN
- -38 J/kg
- Mixed-layer LCL
- 589 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 116 m²/s²
- 0-3 km storm-relative helicity
- 118 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
556
WGUS52 KFFC 211551
FFWFFC
GAC089-212145-
/O.NEW.KFFC.FF.W.0092.130821T1551Z-130821T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1151 AM EDT WED AUG 21 2013
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
* FLASH FLOOD WARNING FOR...
CENTRAL DEKALB COUNTY IN NORTH CENTRAL GEORGIA
* UNTIL 545 PM EDT
* AT 1141 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR
INDICATED 2 TO 3 INCHES OF RAIN HAS FALLEN IN THE LAST 2 HOURS
OVER PARTS OF EASTCENTRAL DEKALB COUNTY. RIVER GAGE LEVELS
ON SNAPFINGER CREEK AND STONE MOUNTAIN CREEK ARE RISING
RAPIDLY AND WILL BE COMING OUT OF THEIR BANKS BY MIDDAY.
EVEN AFTER THE RAIN ENDS...WATER LEVELS WILL CONTINUE TO RISE
AND WILL PROLONG THE FLOOD THROUGH AT LEAST MID AFTERNOON.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
TUCKER AND CLARKSTON.
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. NEVER DRIVE INTO
WATER COVERING OR RUNNING OVER A ROAD. THE MAJORITY OF FLOODING
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. YOU CAN ALSO TWEET YOUR REPORT
USING HASHTAG GAWX.
&&
LAT...LON 3386 8423 3387 8419 3386 8416 3383 8413
3382 8413 3376 8420 3381 8428
$$1 follow-up statement
969
WGUS72 KFFC 211900
FFSFFC
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
300 PM EDT WED AUG 21 2013
GAC089-211909-
/O.CAN.KFFC.FF.W.0092.000000T0000Z-130821T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DEKALB GA-
300 PM EDT WED AUG 21 2013
...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR CENTRAL DEKALB
COUNTY...
WATER LEVELS HAVE RECEDED ON AFFECTED CREEKS AND STREAMS. ALTHOUGH
LARGER CREEKS AND RIVERS WILL REMAIN AT HIGH LEVELS...FLOODING OR
FLASH FLOODING IS NO LONGER EXPECTED.
IF YOU SAW SIGNIFICANT FLOODING CALL THE NATIONAL WEATHER SERVICE
TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6. YOU CAN ALSO TWEET YOUR REPORT
USING HASHTAG GAWX.
LAT...LON 3386 8423 3387 8419 3386 8417 3383 8413
3382 8413 3376 8420 3381 8428
$$The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 20, 8:13 PM EDT | Special Weather Statement | FFC | Chattahoochee, Macon, Marion, Muscogee, Schley, Talbot and 1 more | 47 min |
| Aug 20, 8:24 PM EDT | Special Weather Statement | FFC | Crisp | 36 min |
| Aug 20, 8:39 PM EDT | Severe Thunderstorm Warning | FFC | Crisp, Wilcox | 51 min |
| Aug 20, 8:55 PM EDT | Severe Thunderstorm Warning | FFC | Dooly, Pulaski, Wilcox | 50 min |
| Aug 20, 9:00 PM EDT | Special Weather Statement | FFC | Macon, Talbot, Taylor | 30 min |
| Aug 20, 9:33 PM EDT | Flash Flood Warning | FFC | Crisp, Dooly, Wilcox | 6 hr |
| Aug 20, 9:52 PM EDT | Special Weather Statement | FFC | Crawford, Houston, Peach, Upson | 53 min |
| Aug 20, 11:03 PM EDT | Special Weather Statement | FFC | Dodge | 42 min |
| Aug 20, 11:37 PM EDT | Special Weather Statement | FFC | Laurens, Wheeler | 38 min |
| Aug 20, 11:51 PM EDT | Special Weather Statement | FFC | Newton, Rockdale | 24 min |
| Aug 21, 12:20 AM EDT | Special Weather Statement | FFC | Laurens | 40 min |
| Aug 21, 4:07 AM EDT | Flash Flood Watch | FFC | Baldwin, Bibb, Bleckley, Chattahoochee, Crawford, Crisp and 29 more | 17 hr |
| Aug 21, 9:26 AM EDT | Special Weather Statement | FFC | Rockdale | 64 min |
| Aug 21, 10:06 AM EDT | Special Weather Statement | FFC | Rockdale | 54 min |
| Aug 21, 11:17 AM EDT | Special Weather Statement | FFC | DeKalb | 58 min |
| Aug 21, 12:10 PM EDT | Flash Flood Warning | FFC | White | 6 hr |
| Aug 21, 1:24 PM EDT | Special Weather Statement | FFC | Polk | 36 min |
| Aug 21, 3:47 PM EDT | Special Weather Statement | FFC | Telfair, Wheeler | 28 min |
| Aug 21, 4:42 PM EDT | Special Weather Statement | FFC | Chattooga, Dade, Walker | 33 min |
| Aug 21, 4:57 PM EDT | Severe Thunderstorm Warning | FFC | Oglethorpe, Wilkes | 48 min |
| Aug 21, 5:58 PM EDT | Special Weather Statement | FFC | Polk | 32 min |
| Aug 21, 6:22 PM EDT | Special Weather Statement | FFC | Haralson | 38 min |
| Aug 21, 6:58 PM EDT | Special Weather Statement | FFC | Monroe | 32 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.