Alert archive / Georgia / Flash Flood Warnings in 2008

Flash Flood Warning 12, NWS Atlanta, GA

August 26, 2008Lumpkin County, White County, Georgia

NWS Atlanta, GA issued this flash flood warning at Aug 26, 2008, 12:40 PM EDT for Lumpkin County, White County, Georgia. It was in force for 6 hr. 10 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 26, 2008, 12:40 PM EDT (16:40 UTC)
Expired
Aug 26, 2008, 6:30 PM EDT
In force
6 hr
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Flood severity
None

Counties Lumpkin County, GA, White County, GA

The radar

The Greer radar (KGSP), 150 km from the middle of the area, began a volume at 16:41 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

TimeReportWhereRemark
Aug 26, 1:30 PM EDTFLASH FLOOD4 Nw Cleveland, GATOWNS CREEK CAUSED MINOR FLOODING OF YARDS IN PORTIONS OF PARADISE VALLEY CAMPGROUND.
Aug 26, 1:30 PM EDTFLASH FLOOD5 E Dahlonega, GAMUDSLIDE REPORTED NEAR THE COPPERMINES ROAD BRIDGE OVER THE CHESTATEE RIVER.
Aug 26, 1:30 PM EDTFLASH FLOOD5 Wnw Cleveland, GACULVERT PIPE AND ASPHALT ROAD WASHED OUT AT 277 MILL LANE.
Aug 26, 1:40 PM EDTFLASH FLOOD4 Wnw Cleveland, GATOWNS CREEK OVERFLOWED CONCRETE CULVERT AT ADAIR MILL ROAD WITH AT LEAST ONE FOOT OF WATER. WIDESPREAD MINOR FLOODING OCCURRED OF PASTURE UPSTREAM FROM THE CULVERT.
Aug 26, 1:40 PM EDTFLASH FLOOD7 E Dahlonega, GAWAHOO CREEK WASHED OUT THE ROCK ROAD AROUND THE CULVERT PIPE ON WAHOO CREEK ROAD.
Aug 26, 1:50 PM EDTFLASH FLOOD5 Nw Cleveland, GAMUDSLIDE ON KELLUM VALLEY ROAD. MUDSLIDE WAS 15 FEET WIDE BY 20 FEET TALL AND TEMPORARILY CLOSED THE ROAD.
Aug 26, 1:50 PM EDTFLASH FLOOD6 E Dahlonega, GAA STREAM OVERFLOWED GEORGIA HIGHWAY 115 NEAR GRINDLE BROTHERS ROAD WITH AT LEAST ONE FOOT OF WATER.
Aug 26, 1:50 PM EDTFLASH FLOOD6 Se Dahlonega, GAA STREAM OVERFLOWED MT OLIVE CHURCH ROAD WITH AT LEAST ONE FOOT OF WATER AND CAUSED MINOR FLOODING OF AN AGRICULTURAL FIELD UPSTREAM FROM THE BRIDGE.
Aug 26, 2:00 PM EDTFLASH FLOOD4 E Dahlonega, GAPECKS MILL CREEK OVERFLOWED THE PECKS MILL CREEK ROAD AND CONCRETE SLAP BRIDGE WITH AT LEAST TWO FEET OF WATER. DAMAGE OCCURRED TO THE TWO CULVERT PIPES WITH SIGNIFICANT EROSION.
Aug 26, 2:30 PM EDTFLASH FLOODHelen, GATHE CHATTAHOOCHEE RIVER REACHED FLOOD STAGE OF 6 FEET. REPORTS OF FLOODING IN THE DOWNTOWN DISTRICT IMPACTING SOME STORES...RESTAURANTS AND PARKS. LARGE DEBRIS BLOCKAGE OF TREES AT THE BRIDGE IN HELEN.

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, 4.7 hours before the alert went out and 154 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.

Skew-T log-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 12:00Z on 2008-08-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 825 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 12:00Z on 2008-08-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 348 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
825 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
459 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
348 m²/s²
0-3 km storm-relative helicity
373 m²/s²
Significant tornado parameter
1.3
Supercell composite
13.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS52 KFFC 261640
FFWFFC
GAC187-311-262230-
/O.NEW.KFFC.FF.W.0012.080826T1640Z-080826T2230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1240 PM EDT TUE AUG 26 2008

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN LUMPKIN COUNTY IN NORTH CENTRAL GEORGIA
  WHITE COUNTY IN NORTHEAST GEORGIA

* UNTIL 630 PM EDT

* AT 1230 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR            
  INDICATED 2 TO 3 INCHES OF RAIN HAS FALLEN OVER EASTERN LUMPKIN
  AND WHITE COUNTIES SINCE 630 AM EDT. THE SOILS HAVE BECOME 
  COMPLETELY SATURATED WITH EXCESSIVE RUNOFF.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO UNICOI     
  STATE PARK...HELEN...CLEVELAND AND SAUTEE.

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE IN THE 
WARNED AREA WITHIN THE NEXT HOUR.

FLASH FLOODING OF SMALL STREAMS AND CREEKS ARE IMMINENT. MOST FLOOD 
RELATED DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER 
COVERED BRIDGES...DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS 
A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING 
WATER MOVE UP 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.

LAT...LON 3466 8401 3472 8383 3479 8374 3474 8367
      3451 8366 3453 8379 3446 8392

$$

16
2 follow-up statements
000 
WGUS72 KFFC 261833
FFSFFC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
233 PM EDT TUE AUG 26 2008

GAC187-311-262230-
/O.CON.KFFC.FF.W.0012.000000T0000Z-080826T2230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LUMPKIN GA-WHITE GA-
233 PM EDT TUE AUG 26 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 630 PM EDT FOR WHITE
AND EASTERN LUMPKIN COUNTIES...

AT 212 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
HEAVY RAIN BETWEEN CUMMING AND LAWRENCEVILLE MOVING TO THE 
NORTHEAST AT 30 MPH. THIS HEAVY RAIN IS EXPECTED TO MOVE INTO THE 
WARNED AREA AROUND 330 PM EDT. ADDITIONAL RAINFALL AMOUNTS AROUND
ONE HALF INCH IS POSSIBLE.

THE STAGE HEIGHT ON CHATTAHOOCHEE RIVER IN HELEN HAS RISEN RAPIDLY
TO 5.7 FEET AT 200 PM EDT. FLOOD STAGE IS 6 FEET. THE RIVER MAY RISE
TO 7 FEET BEFORE CRESTING LATER THIS AFTERNOON.

THE LUMPKIN COUNTY EMA DIRECTOR REPORTS A MUDSLIDE NEAR THE 
COPPERMINES ROAD BRIDGE THAT CROSSES THE CHESTATEE RIVER IN
EASTERN LUMPKIN COUNTY.

FLASH FLOODING OF SMALL STREAMS AND CREEKS ARE IMMINENT. MOST FLOOD 
RELATED DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER 
COVERED BRIDGES...DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS 
A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING 
WATER MOVE UP 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.

LAT...LON 3466 8401 3472 8383 3479 8374 3474 8367
      3451 8366 3453 8379 3446 8392

$$

16
000 
WGUS72 KFFC 262036
FFSFFC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
436 PM EDT TUE AUG 26 2008

GAC187-311-262230-
/O.CON.KFFC.FF.W.0012.000000T0000Z-080826T2230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LUMPKIN GA-WHITE GA-
436 PM EDT TUE AUG 26 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 630 PM EDT FOR WHITE
AND EASTERN LUMPKIN COUNTIES...

AT 421 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
HEAVY RAIN BETWEEN GAINESVILLE AND CLEVELAND MOVING TO THE 
NORTHEAST AT 30 MPH. THIS HEAVY RAIN IS EXPECTED TO MOVE THROUGH THE 
WARNED AREA BY 530 PM EDT. ADDITIONAL RAINFALL AMOUNTS AROUND
ONE HALF INCH IS POSSIBLE.

THE STAGE HEIGHT ON CHATTAHOOCHEE RIVER IN HELEN CRESTED AT 6.0  
FEET AT 230 PM EDT. FLOOD STAGE IS 6 FEET. THE RIVER LEVEL WAS 4.6 
FEET AND FALLING AT 400 PM.

EMERGENCY MANAGEMENT AND THE PUBLIC HAS REPORTED FLOODING IN 
DOWNTOWN HELEN.

FLASH FLOODING OF SMALL STREAMS AND CREEKS ARE IMMINENT. MOST FLOOD 
RELATED DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER 
COVERED BRIDGES...DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS 
A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING 
WATER MOVE UP TO HIGHER GROUND.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO UNICOI STATE
PARK AND SAUTEE

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 PM EDT TUESDAY EVENING
FOR EASTERN GEORGIA.

IF YOU SEE SIGNIFICANT FLOODING CALL THE NATIONAL WEATHER SERVICE
TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.

LAT...LON 3466 8401 3472 8383 3479 8374 3474 8367
      3451 8366 3453 8379 3446 8392

$$

The office that day

Everything else NWS Atlanta, GA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 25, 10:45 PM EDTTornado WarningFFCOglethorpe, Wilkes30 min
Aug 25, 11:08 PM EDTTornado WarningFFCWilkes52 min
Aug 25, 11:56 PM EDTTornado WarningFFCBibb, Houston, Twiggs49 min
Aug 26, 12:01 AM EDTTornado WarningFFCBarrow, Gwinnett, Oconee, Walton44 min
Aug 26, 8:09 AM EDTTornado WarningFFCCobb, DeKalb, Fulton36 min
Aug 26, 9:21 AM EDTFlash Flood WarningFFCCobb4 hr
Aug 26, 9:31 AM EDTTornado WarningFFCTalbot, Taylor, Upson44 min
Aug 26, 9:59 AM EDTTornado WarningFFCLamar22 min
Aug 26, 11:34 AM EDTTornado WarningFFCCrawford, Monroe41 min
Aug 26, 12:04 PM EDTTornado WarningFFCJasper, Jones41 min
Aug 26, 12:28 PM EDTTornado WarningFFCCrisp47 min
Aug 26, 12:40 PM EDTTornado WarningFFCJasper, Morgan, Putnam50 min
Aug 26, 1:16 PM EDTTornado WarningFFCOconee, Walton29 min
Aug 26, 1:30 PM EDTSevere Thunderstorm WarningFFCClarke, Jackson, Madison30 min
Aug 26, 1:39 PM EDTFlash Flood WarningFFCTowns6 hr
Aug 26, 2:01 PM EDTTornado WarningFFCClarke, Oconee, Oglethorpe29 min
Aug 26, 2:07 PM EDTFlash Flood WarningFFCBanks, Jackson6 hr
Aug 26, 3:16 PM EDTFlash Flood WarningFFCNewton, Rockdale6 hr
Aug 26, 3:28 PM EDTRiver Flood WarningFFCForsyth, Fulton6 hr
Aug 26, 3:49 PM EDTTornado WarningFFCHall, White41 min
Aug 26, 4:08 PM EDTTornado WarningFFCBarrow, Jackson37 min
Aug 26, 4:10 PM EDTTornado WarningFFCDooly, Houston, Macon, Peach50 min
Aug 26, 4:36 PM EDTTornado WarningFFCBanks, Jackson24 min
Aug 26, 4:55 PM EDTTornado WarningFFCGreene, Oglethorpe50 min
Aug 26, 6:02 PM EDTTornado WarningFFCGreene, Oglethorpe, Taliaferro, Wilkes58 min
Aug 26, 6:08 PM EDTTornado WarningFFCBanks, Hall37 min
Aug 26, 6:24 PM EDTTornado WarningFFCBaldwin, Jones38 min
Aug 26, 6:41 PM EDTFlash Flood WarningFFCLumpkin, White6 hr
Aug 26, 7:00 PM EDTTornado WarningFFCWilkes15 min
Aug 26, 7:15 PM EDTAreal Flood WarningFFCHall6 hr
Aug 26, 7:31 PM EDTTornado WarningFFCHancock, Taliaferro, Warren44 min

Nearby

Flash Flood Warnings in Georgia, 2008Every flash flood warning in 2008

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.