Alert archive / Georgia / Flash Flood Warnings in 2015
Flash Flood Warning 17, NWS Atlanta, GA
NWS Atlanta, GA issued this flash flood warning at Aug 11, 2015, 1:31 AM EDT for 5 counties in 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 11, 2015, 1:31 AM EDT (05:31 UTC)
- Expired
- Aug 11, 2015, 7:30 AM EDT
- In force
- 6 hr
- Issued by
- NWS Atlanta, GA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Barrow County, GA, Clarke County, GA, Jackson County, GA, Madison County, GA, Oconee County, GA
The radar
The Atlanta radar (KFFC), 126 km from the middle of the area, began a volume at 05:32 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 00:00Z, 5.5 hours before the alert went out and 121 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
- 1277 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 1493 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 54 m²/s²
- 0-3 km storm-relative helicity
- 131 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
420
WGUS52 KFFC 110531
FFWFFC
GAC013-059-157-195-219-111130-
/O.NEW.KFFC.FF.W.0017.150811T0531Z-150811T1130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
131 AM EDT TUE AUG 11 2015
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHWESTERN MADISON COUNTY IN NORTHEASTERN GEORGIA...
SOUTHEASTERN JACKSON COUNTY IN NORTHEASTERN GEORGIA...
CLARKE COUNTY IN NORTHEASTERN GEORGIA...
SOUTHEASTERN BARROW COUNTY IN NORTH CENTRAL GEORGIA...
NORTHWESTERN OCONEE COUNTY IN NORTHEASTERN GEORGIA...
* UNTIL 730 AM EDT
* AT 130 AM EDT...DOPPLER RADAR INDICATED A SERIES OF THUNDERSTORMS
PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. FLASH FLOODING IS EXPECTED TO
BEGIN SHORTLY.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
ATHENS...STATHAM...ARCADE...BOGART...BETHLEHEM...HULL...
ATHENS-CLARKE COUNTY (BALANCE)...WHITEHALL...NEESE...BEECHWOOD
HILLS...BEAR CREEK RESERVOIR...WESTGATE PARK...SANDY CREEK
RECREATION AREA...JAMES HOLLAND YOUTH SPORTS CMPX...BARRETTS
MILL...OCONEE HEIGHTS AND DIAMOND HILL.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.
TURN AROUND...DONT 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 WARNING AT
NWSATLANTA.
&&
LAT...LON 3409 8327 3390 8333 3393 8370 3406 8367
$$2 follow-up statements
537 WGUS72 KFFC 110857 FFSFFC FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE PEACHTREE CITY GA 457 AM EDT TUE AUG 11 2015 GAC013-059-157-195-219-111130- /O.CON.KFFC.FF.W.0017.000000T0000Z-150811T1130Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ MADISON GA-JACKSON GA-CLARKE GA-BARROW GA-OCONEE GA- 457 AM EDT TUE AUG 11 2015 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 AM EDT FOR SOUTHWESTERN MADISON...SOUTHEASTERN JACKSON...CLARKE...SOUTHEASTERN BARROW AND NORTHWESTERN OCONEE COUNTIES... AT 453 AM EDT...DOPPLER RADAR INDICATED UP TO 3 OR 4 INCHES OF RAIN HAVING FALLEN FROM A SERIES OF PREVIOUS OVERNIGHT THUNDERSTORMS ACROSS THE WARNED AREA. FLASH FLOODING FROM RUNOFF IS STILL A CONCERN DESPITE THE STORMS HAVING EXITED THE AREA. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... ATHENS...STATHAM...ARCADE...BOGART...BETHLEHEM...HULL...ATHENS-CLARKE COUNTY (BALANCE)...WHITEHALL...NEESE...BEECHWOOD HILLS...BEAR CREEK RESERVOIR...WESTGATE PARK...SANDY CREEK RECREATION AREA...JAMES HOLLAND YOUTH SPORTS CMPX...BARRETTS MILL...OCONEE HEIGHTS AND DIAMOND HILL. PRECAUTIONARY/PREPAREDNESS ACTIONS... MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD DEATHS OCCUR IN VEHICLES. IF YOU SEE SIGNIFICANT FLOODING CALL THE NATIONAL WEATHER SERVICE TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6 OR TWEET US YOUR REPORT AT NWSATLANTA. && LAT...LON 3409 8327 3390 8333 3393 8370 3406 8367 $$
255 WGUS72 KFFC 111123 FFSFFC FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE PEACHTREE CITY GA 723 AM EDT TUE AUG 11 2015 GAC013-059-157-195-219-111132- /O.EXP.KFFC.FF.W.0017.000000T0000Z-150811T1130Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ MADISON GA-JACKSON GA-CLARKE GA-BARROW GA-OCONEE GA- 723 AM EDT TUE AUG 11 2015 ...THE FLASH FLOOD WARNING FOR SOUTHWESTERN MADISON...SOUTHEASTERN JACKSON...CLARKE...SOUTHEASTERN BARROW AND NORTHWESTERN OCONEE COUNTIES WILL EXPIRE AT 730 AM EDT... THE HEAVY RAIN HAS ENDED...AND FLOODING IS NO LONGER EXPECTED TO POSE A THREAT...HOWEVER MOTORISTS SHOULD BE CAUTIOUS IF THERE ARE ANY LINGERING AREAS OF WATER OVER ROADWAYS. LAT...LON 3409 8327 3390 8333 3393 8370 3406 8367 $$
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 10, 8:42 PM EDT | Special Weather Statement | FFC | Baldwin, Hancock, Jones, Putnam | 48 min |
| Aug 10, 9:25 PM EDT | Special Weather Statement | FFC | Pike | 35 min |
| Aug 10, 9:34 PM EDT | Special Weather Statement | FFC | Baldwin, Twiggs, Wilkinson | 41 min |
| Aug 10, 10:31 PM EDT | Special Weather Statement | FFC | Lamar, Monroe, Muscogee, Talbot, Upson | 44 min |
| Aug 10, 11:12 PM EDT | Special Weather Statement | FFC | Crawford, Marion, Muscogee, Taylor, Upson | 48 min |
| Aug 10, 11:47 PM EDT | Special Weather Statement | FFC | Bibb, Crawford, Peach | 43 min |
| Aug 11, 12:05 AM EDT | Special Weather Statement | FFC | Chattahoochee, Marion, Muscogee | 25 min |
| Aug 11, 12:59 AM EDT | Special Weather Statement | FFC | Chattahoochee, Muscogee | 31 min |
| Aug 11, 3:48 PM EDT | Special Weather Statement | FFC | Emanuel | 27 min |
Nearby
Flash Flood Warnings in Georgia, 2015Every flash flood warning in 2015
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.