Alert archive / Georgia / Flash Flood Warnings in 2013
Flash Flood Warning 81, NWS Atlanta, GA
NWS Atlanta, GA issued this flash flood warning at Aug 14, 2013, 6:22 PM EDT for 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 14, 2013, 6:22 PM EDT (22:22 UTC)
- Expired
- Aug 15, 2013, 12:15 AM EDT
- In force
- 6 hr
- Issued by
- NWS Atlanta, GA
- Area
- Storm-based polygon
- Flood severity
- None
County Henry County, GA
The radar
The Atlanta radar (KFFC), 32 km from the middle of the area, began a volume at 22:24 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.
The nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 10.4 hours before the alert went out and 26 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
- 307 J/kg
- Mixed-layer CIN
- -47 J/kg
- Mixed-layer LCL
- 775 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- -19 m²/s²
- 0-3 km storm-relative helicity
- 25 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
990
WGUS52 KFFC 142222
FFWFFC
GAC151-150415-
/O.NEW.KFFC.FF.W.0081.130814T2222Z-130815T0415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
622 PM EDT WED AUG 14 2013
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHWESTERN HENRY COUNTY IN NORTH CENTRAL GEORGIA
* UNTIL 1215 AM EDT
* AT 615 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
FLASH FLOODING FROM HEAVY RAIN OVER THE WARNED AREA. 2 TO 3 INCHES
OF RAIN HAS ALREADY FALLEN WITH THE POTENTIAL FOR AN ADDITIONAL
INCH.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO MCDONOUGH.
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.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY...THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.
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 3348 8429 3349 8411 3333 8411 3333 8415
3334 8415 3334 8424 3335 8425 3336 8429
3339 8430
$$1 follow-up statement
422
WGUS72 KFFC 142331
FFSFFC
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
731 PM EDT WED AUG 14 2013
GAC151-150415-
/O.CON.KFFC.FF.W.0081.000000T0000Z-130815T0415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HENRY GA-
731 PM EDT WED AUG 14 2013
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1215 AM EDT FOR
SOUTHWESTERN HENRY COUNTY...
AT 725 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE MODERATE TO HEAVY RAIN PRODUCING FLASH FLOODING OVER THE
WARNED AREA. RADAR ESTIMATES ARE ON THE ORDER OF 3 TO 5 INCHES OVER
THE WARNED AREA.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO MCDONOUGH AND
HAMPTON
PRECAUTIONARY/PREPAREDNESS ACTIONS...
ADDITIONAL RAINFALL AMOUNTS OF CLOSE TO AN INCH ARE POSSIBLE IN THE
WARNED AREA.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY...THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.
IF YOU SEE SIGNIFICANT FLOODING CALL THE NATIONAL WEATHER SERVICE
TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6. YOU CAN ALSO TWEET YOUR REPORT
USING HASHTAG GAWX.
&&
LAT...LON 3348 8429 3349 8411 3333 8411 3333 8415
3334 8415 3335 8423 3335 8425 3336 8429
3339 8430
$$The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 14, 3:47 PM EDT | Special Weather Statement | FFC | Muscogee | 58 min |
| Aug 14, 4:14 PM EDT | Flash Flood Warning | FFC | Muscogee | 6 hr |
| Aug 14, 4:51 PM EDT | Special Weather Statement | FFC | Dodge | 54 min |
| Aug 14, 5:47 PM EDT | Special Weather Statement | FFC | Dodge, Wilcox | 58 min |
| Aug 14, 5:51 PM EDT | Special Weather Statement | FFC | Macon | 54 min |
| Aug 14, 6:02 PM EDT | Special Weather Statement | FFC | Henry | 43 min |
| Aug 14, 6:33 PM EDT | Special Weather Statement | FFC | Telfair | 57 min |
| Aug 14, 6:47 PM EDT | Special Weather Statement | FFC | DeKalb | 43 min |
| Aug 14, 6:59 PM EDT | Special Weather Statement | FFC | Wheeler | 31 min |
| Aug 14, 7:46 PM EDT | Special Weather Statement | FFC | Laurens | 59 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.