Alert archive / Georgia / Flash Flood Warnings in 2014

Flash Flood Warning 13, NWS Atlanta, GA

June 27, 2014Dawson County, Lumpkin County, Georgia

NWS Atlanta, GA issued this flash flood warning at Jun 27, 2014, 3:25 PM EDT for Dawson County, Lumpkin 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
Jun 27, 2014, 3:25 PM EDT (19:25 UTC)
Expired
Jun 27, 2014, 9:15 PM EDT
In force
6 hr
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Flood severity
None

Counties Dawson County, GA, Lumpkin County, GA

The radar

The Atlanta radar (KFFC), 134 km from the middle of the area, began a volume at 19:28 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, 7.4 hours before the alert went out and 132 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 2014-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 186 joules per kilogram.LCLLFCEL10008507005003002001001 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 2014-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -27 square meters per square second.1939Sfc1 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
186 J/kg
Mixed-layer CIN
-72 J/kg
Mixed-layer LCL
659 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-27 m²/s²
0-3 km storm-relative helicity
-7 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

408 
WGUS52 KFFC 271925
FFWFFC
GAC085-187-280115-
/O.NEW.KFFC.FF.W.0013.140627T1925Z-140628T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
325 PM EDT FRI JUN 27 2014

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN DAWSON COUNTY IN NORTH CENTRAL GEORGIA
  SOUTHWESTERN LUMPKIN COUNTY IN NORTH CENTRAL GEORGIA

* UNTIL 915 PM EDT

* AT 319 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  THAT HEAVY RAINFALL FROM A THUNDERSTORM WAS LEADING TO FLASH       
  FLOODING.  DOPPLER RADAR HAS INDICATED THAT 2.5 TO 3 INCHES OF     
  RAIN HAS FALLEN OVER THE WARNED AREA AND ANOTHER 1 TO 1.5 INCHES   
  OF RAIN IS POSSIBLE.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  NIMBLEWILL...AMICALOLA FALLS STATE PARK AND LEN FOOTE HIKE INN

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...COCHRANS 
CREEK...AMICALOLA CREEK..LITTLE AMICALOLA CREEK...ETOWAH 
RIVER...MILL CREEK AND POVERTY CREEK.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS...STREAMS AND COUNTRY ROADS...AS WELL AS FARMLANDS AND
WOODLANDS ALONG THE BANKS OF CREEKS AND STREAMS.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DO NOT DROWN.

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 3457 8400 3443 8405 3443 8423 3447 8426
      3447 8431 3449 8433 3458 8431 3457 8426
      3460 8425 3461 8419

$$
2 follow-up statements
696 
WGUS72 KFFC 272147
FFSFFC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
547 PM EDT FRI JUN 27 2014

GAC085-187-280115-
/O.CON.KFFC.FF.W.0013.000000T0000Z-140628T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LUMPKIN GA-DAWSON GA-
547 PM EDT FRI JUN 27 2014

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 915 PM EDT FOR
NORTHERN DAWSON AND SOUTHWESTERN LUMPKIN COUNTIES...

AT 539 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THAT OVER 3.5 INCHES OF RAIN HAS FALLEN BETWEEN AMICALOLA FALLS 
STATE PARK AND JUNO.  ANOTHER ROUND OF THUNDERSTORMS IS MOVING INTO 
THE AREA.  THESE STORMS COULD DROP AN ADDITIONAL 1 TO 1.5 INCHES OF 
RAIN.  THIS ADDITIONAL RAINFALL COULD LEAD TO FLASH FLOODING.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO NIMBLEWILL...
FAUSETT LAKE...AMICALOLA FALLS STATE PARK AND LEN FOOTE HIKE INN

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DO NOT DROWN.

IN HILLY TERRAIN THERE ARE LOW WATER CROSSINGS WHICH ARE POTENTIALLY
DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS FLOODED
ROADS. FIND ALTERNATE ROUTES. IT TAKES ONLY A FEW INCHES OF SWIFTLY
FLOWING WATER TO CARRY VEHICLES AWAY.

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 3457 8400 3443 8405 3443 8423 3447 8426
      3447 8431 3449 8433 3458 8431 3457 8426
      3460 8425 3461 8419

$$
783 
WGUS72 KFFC 272316
FFSFFC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
716 PM EDT FRI JUN 27 2014

GAC085-187-272326-
/O.CAN.KFFC.FF.W.0013.000000T0000Z-140628T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LUMPKIN GA-DAWSON GA-
716 PM EDT FRI JUN 27 2014

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR NORTHERN DAWSON AND
SOUTHWESTERN LUMPKIN COUNTIES...

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 3457 8400 3443 8405 3443 8423 3447 8426
      3447 8431 3449 8433 3458 8431 3457 8426
      3460 8425 3461 8419

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 27, 2:26 PM EDTSpecial Weather StatementFFCUnion79 min
Jun 27, 2:58 PM EDTSpecial Weather StatementFFCTowns77 min
Jun 27, 3:09 PM EDTSpecial Weather StatementFFCLumpkin81 min
Jun 27, 4:04 PM EDTSpecial Weather StatementFFCGreene26 min
Jun 27, 4:45 PM EDTSpecial Weather StatementFFCMurray30 min
Jun 27, 6:00 PM EDTSpecial Weather StatementFFCGilmer30 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.