Alert archive / Georgia / Flash Flood Warnings in 2021

Flash Flood Warning 41, NWS Atlanta, GA

October 6, 20214 counties in Georgia

NWS Atlanta, GA issued this flash flood warning at Oct 6, 2021, 6:14 AM EDT for 4 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
Oct 6, 2021, 6:14 AM EDT (10:14 UTC)
Expired
Oct 6, 2021, 12:15 PM EDT
In force
6 hr
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Flood severity
None

Counties Bibb County, GA, Houston County, GA, Peach County, GA, Twiggs County, GA

The radar

The Robins AFB radar (KJGX), 28 km from the middle of the area, began a volume at 10:18 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, 10.2 hours before the alert went out and 120 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 00:00Z on 2021-10-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 155 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 00:00Z on 2021-10-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 square meters per square second.193958Sfc1 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
155 J/kg
Mixed-layer CIN
-34 J/kg
Mixed-layer LCL
709 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
108 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

864 
WGUS52 KFFC 061014
FFWFFC
GAC021-153-225-289-061615-
/O.NEW.KFFC.FF.W.0041.211006T1014Z-211006T1615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Peachtree City GA
614 AM EDT Wed Oct 6 2021

The National Weather Service in Peachtree City has issued a

* Flash Flood Warning for...
  Central Bibb County in central Georgia...
  Eastern Houston County in central Georgia...
  Northeastern Peach County in central Georgia...
  Southwestern Twiggs County in central Georgia...

* Until 1215 PM EDT Wednesday.

* At 614 AM EDT, National Weather Service radar indicated 2 to 3 
  inches of rain have fallen in the last two hours. Additional 
  rainfall amounts of 1 to 3 inches are possible in the warned area. 
  Flash flooding is ongoing or expected to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Macon, Warner Robins, Centerville, Byron, Payne, Robins Air Force 
  Base, Payne City, Middle Georgia Regional Airport, Elberta, 
  Rutland, Skipperton, Lakewood, Bonaire, Wesleyan and Klondike.

This includes the following streams and drainages...
  Horse Creek, Ocmulgee River, Bay Creek, Savage Creek, Mossy Creek, 
  Thompson Mill Creek, Rocky Creek, Dry Creek, Cainey Branch, Amason 
  Branch, Juniper Creek, Redding Branch, Wolf Creek, Bowman Branch, 
  Buck Creek, Beulah Branch, Echeconnee Creek, Tobesofkee Creek, 
  Sandy Run Creek, Flat Creek, Big Indian Creek, Crooked Creek, 
  Sauls Branch, Bay Gall Creek, Beaverdam Creek, Sabbath Creek and 
  Big Grocery Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 3273 8377 3291 8379 3291 8369 3282 8362
      3256 8353 3249 8349 3246 8349 3245 8350
      3240 8349 3239 8350 3240 8352 3234 8358
      3250 8357 3255 8361 3256 8369 3252 8372
      3251 8376 3267 8376 3269 8372

FLASH FLOOD...RADAR INDICATED

$$
1 follow-up statement
290 
WGUS72 KFFC 061130
FFSFFC

Flash Flood Statement
National Weather Service Peachtree City GA
730 AM EDT Wed Oct 6 2021

GAC021-153-225-289-061615-
/O.CON.KFFC.FF.W.0041.000000T0000Z-211006T1615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Bibb GA-Houston GA-Peach GA-Twiggs GA-
730 AM EDT Wed Oct 6 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1215 PM EDT THIS 
AFTERNOON FOR CENTRAL BIBB, EASTERN HOUSTON, NORTHEASTERN PEACH AND 
SOUTHWESTERN TWIGGS COUNTIES...

At 730 AM EDT, National Weather Service radar and automated rain 
gauges indicated up to 4 inches of rain has fallen. Additional 
rainfall amounts up to 2 inches are possible in the warned area. 
Even if the rain tapers off, runoff  can lead to additional flash 
flooding.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar and automated gauges.

IMPACT...Flash flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other poor
         drainage and low-lying areas.

Some locations that will experience flash flooding include...
  Macon, Warner Robins, Centerville, Byron, Payne, Robins Air Force 
  Base, Payne City, Middle Georgia Regional Airport, Elberta, 
  Rutland, Skipperton, Lakewood, Bonaire, Wesleyan and Klondike.

This includes the following streams and drainages...
  Horse Creek, Ocmulgee River, Bay Creek, Savage Creek, Mossy Creek, 
  Thompson Mill Creek, Rocky Creek, Dry Creek, Cainey Branch, Amason 
  Branch, Juniper Creek, Redding Branch, Wolf Creek, Bowman Branch, 
  Buck Creek, Beulah Branch, Echeconnee Creek, Tobesofkee Creek, 
  Sandy Run Creek, Flat Creek, Big Indian Creek, Crooked Creek, 
  Sauls Branch, Bay Gall Creek, Beaverdam Creek, Sabbath Creek and 
  Big Grocery Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 3273 8377 3291 8379 3291 8369 3282 8362
      3256 8353 3249 8349 3246 8349 3245 8350
      3240 8349 3239 8350 3240 8352 3234 8358
      3250 8357 3255 8361 3256 8369 3252 8372
      3251 8376 3267 8376 3269 8372

FLASH FLOOD...RADAR AND GAUGE INDICATED

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 5, 10:30 PM EDTRiver Flood WarningFFCBarrow, Jackson16 hr
Oct 5, 10:37 PM EDTRiver Flood WarningFFCDeKalb, Rockdale16 hr
Oct 5, 10:45 PM EDTRiver Flood WarningFFCNewton, Rockdale16 hr
Oct 5, 10:57 PM EDTSpecial Weather StatementFFCBleckley, Dodge, Pulaski33 min
Oct 5, 11:33 PM EDTSpecial Weather StatementFFCBleckley27 min
Oct 6, 12:01 AM EDTSpecial Weather StatementFFCBleckley29 min
Oct 6, 3:27 AM EDTSpecial Weather StatementFFCCrisp63 min
Oct 6, 4:20 AM EDTSpecial Weather StatementFFCCrisp, Dooly, Houston55 min
Oct 6, 5:00 AM EDTFlash Flood WarningFFCDooly, Houston6 hr
Oct 6, 5:30 AM EDTSpecial Weather StatementFFCBibb, Houston60 min
Oct 6, 7:06 AM EDTSpecial Weather StatementFFCBibb, Jones54 min
Oct 6, 7:55 AM EDTSpecial Weather StatementFFCJones65 min
Oct 6, 8:55 AM EDTFlash Flood WarningFFCBibb, Jasper, Jones, Twiggs9 hr
Oct 6, 10:19 AM EDTSpecial Weather StatementFFCUpson56 min
Oct 6, 10:22 AM EDTSpecial Weather StatementFFCPutnam53 min
Oct 6, 10:31 AM EDTFlash Flood WarningFFCCrawford, Lamar, Monroe, Upson6 hr
Oct 6, 10:42 AM EDTFlash Flood WarningFFCJasper, Jones, Putnam7 hr
Oct 6, 11:42 AM EDTSpecial Weather StatementFFCPike63 min
Oct 6, 12:18 PM EDTFlash Flood WarningFFCPike, Talbot, Upson6 hr
Oct 6, 12:56 PM EDTSpecial Weather StatementFFCUpson34 min
Oct 6, 1:23 PM EDTFlash Flood WarningFFCCrawford, Lamar, Pike, Taylor, Upson4 hr
Oct 6, 1:30 PM EDTFlash Flood WarningFFCMorgan, Putnam5 hr
Oct 6, 1:59 PM EDTRiver Flood WarningFFCPutnam5 hr
Oct 6, 2:19 PM EDTTornado WarningFFCMonroe26 min
Oct 6, 2:45 PM EDTSpecial Weather StatementFFCTreutlen30 min
Oct 6, 2:57 PM EDTFlash Flood WarningFFCBibb, Crawford, Monroe, Peach5 hr
Oct 6, 3:38 PM EDTSpecial Weather StatementFFCLaurens37 min
Oct 6, 6:13 PM EDTFlash Flood WarningFFCJasper, Putnam3 hr

Nearby

Flash Flood Warnings in Georgia, 2021Every flash flood warning in 2021

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.