Alert archive / Georgia / Flash Flood Warnings in 2017

Flash Flood Warning 19, NWS Atlanta, GA

June 4, 2017Gordon County, Murray County, Georgia

NWS Atlanta, GA issued this flash flood warning at Jun 4, 2017, 7:37 PM EDT for Gordon County, Murray County, Georgia. It was in force for 6 hr. 1 report 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
Jun 4, 2017, 7:37 PM EDT (23:37 UTC)
Expired
Jun 5, 2017, 1:30 AM EDT
In force
6 hr
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Flood severity
None

Counties Gordon County, GA, Murray County, GA

The radar

The Northeast Alabama radar (KHTX), 118 km from the middle of the area, began a volume at 23:40 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
Jun 4, 11:20 PM EDTFLASH FLOOD1 S Ramhurst, GAROCK CREED DRIVE WAS REPORTED CLOSED DUE TO FLOODING.

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, 11.6 hours before the alert went out and 151 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 2017-06-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 205 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 2017-06-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 21 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
205 J/kg
Mixed-layer CIN
-88 J/kg
Mixed-layer LCL
1216 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
21 m²/s²
0-3 km storm-relative helicity
1 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

461 
WGUS52 KFFC 042337
FFWFFC
GAC129-213-050530-
/O.NEW.KFFC.FF.W.0019.170604T2337Z-170605T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Peachtree City GA
737 PM EDT SUN JUN 4 2017

The National Weather Service in Peachtree City has issued a

* Flash Flood Warning for...
  Southern Murray County in northwestern Georgia...
  Northeastern Gordon County in northwestern Georgia...

* Until 130 AM EDT

* At 735 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Two to three inches of rain 
  have already fallen. Flash flooding is expected to begin shortly.

* Some locations that will experience flooding include...
  Chatsworth, Carters, Fort Mountain State Park, Ramhurst, 
  Nickelsville and North Georgia Speedway. Creeks and rivers that 
  may see flash flooding include Rock Creek, Holly Creek and Sugar 
  Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, country roads, farmland, and other low lying
spots.

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 3459 8466 3457 8489 3466 8490 3467 8489
      3471 8489 3471 8487 3472 8486 3473 8487
      3474 8485 3477 8488 3479 8486 3481 8466

$$
1 follow-up statement
514 
WGUS72 KFFC 050126
FFSFFC

Flash Flood Statement
National Weather Service Peachtree City GA
926 PM EDT SUN JUN 4 2017

GAC129-213-050530-
/O.CON.KFFC.FF.W.0019.000000T0000Z-170605T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Murray GA-Gordon GA-
926 PM EDT SUN JUN 4 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 130 AM EDT FOR
SOUTHERN MURRAY AND NORTHEASTERN GORDON COUNTIES...

At 923 PM EDT, Doppler radar indicated an additional area of showers 
and thunderstorms moving over northern Gordon and southern Murray 
counties.  Three to four inches of rain has already fallen across 
the area and an additional one to two inches of rain is possible.  

Some locations that will experience flooding include...
Chatsworth, Carters, Fort Mountain State Park, Ramhurst, Nickelsville
and North Georgia Speedway.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, country roads, farmland, and other low lying
spots.

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 3459 8466 3457 8489 3466 8490 3467 8489
      3471 8489 3471 8487 3472 8486 3473 8487
      3474 8485 3477 8488 3479 8486 3481 8466

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 3, 10:35 PM EDTSpecial Weather StatementFFCPolk25 min
Jun 4, 6:03 AM EDTSpecial Weather StatementFFCTowns27 min
Jun 4, 7:30 AM EDTSpecial Weather StatementFFCForsyth30 min
Jun 4, 12:44 PM EDTSpecial Weather StatementFFCDeKalb, Fulton46 min
Jun 4, 1:25 PM EDTSpecial Weather StatementFFCHenry, Rockdale65 min
Jun 4, 1:49 PM EDTSpecial Weather StatementFFCCrawford41 min
Jun 4, 1:58 PM EDTSpecial Weather StatementFFCGreene, Morgan, Putnam47 min
Jun 4, 2:32 PM EDTSpecial Weather StatementFFCHenry, Spalding43 min
Jun 4, 2:50 PM EDTSpecial Weather StatementFFCPutnam40 min
Jun 4, 3:28 PM EDTFlash Flood WarningFFCJasper, Jones, Putnam6 hr
Jun 4, 3:49 PM EDTRiver Flood WarningFFCForsyth, Fulton5 hr
Jun 4, 3:57 PM EDTSpecial Weather StatementFFCButts, Lamar48 min
Jun 4, 4:12 PM EDTSpecial Weather StatementFFCHarris48 min
Jun 4, 4:17 PM EDTSpecial Weather StatementFFCBaldwin, Jones43 min
Jun 4, 4:41 PM EDTSpecial Weather StatementFFCHouston49 min
Jun 4, 4:46 PM EDTSpecial Weather StatementFFCCoweta44 min
Jun 4, 4:59 PM EDTSpecial Weather StatementFFCCatoosa, Murray, Walker, Whitfield46 min
Jun 4, 5:04 PM EDTSpecial Weather StatementFFCLamar, Monroe, Upson41 min
Jun 4, 5:22 PM EDTSpecial Weather StatementFFCBibb, Crawford, Peach, Twiggs, Wilkinson53 min
Jun 4, 5:48 PM EDTSpecial Weather StatementFFCJones, Monroe, Wilkinson57 min
Jun 4, 6:10 PM EDTSpecial Weather StatementFFCFannin, Gilmer, Murray, Whitfield50 min
Jun 4, 6:55 PM EDTSpecial Weather StatementFFCTalbot50 min
Jun 4, 7:07 PM EDTSpecial Weather StatementFFCGilmer, Murray, Walker, Whitfield53 min
Jun 4, 7:45 PM EDTSpecial Weather StatementFFCTelfair45 min
Jun 4, 7:52 PM EDTSpecial Weather StatementFFCCherokee38 min

Nearby

Flash Flood Warnings in Georgia, 2017Every flash flood warning in 2017

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.