Alert archive / Georgia / Flash Flood Warnings in 2021

Flash Flood Warning 43, NWS Atlanta, GA

October 6, 20214 counties in Georgia

NWS Atlanta, GA issued this flash flood warning at Oct 6, 2021, 10:31 AM EDT for 4 counties in Georgia. It was in force for 6 hr. 7 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: Oct 6, 2021, 10:31 AM EDT (14:31 UTC)
Expired: Oct 6, 2021, 4:45 PM EDT
In force: 6 hr
Issued by: NWS Atlanta, GA
Area: Storm-based polygon
Flood severity: None

Counties Crawford County, GA, Lamar County, GA, Monroe County, GA, Upson County, GA

The radar

The Robins AFB radar (KJGX), 74 km from the middle of the area, began a volume at 14:31 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

Time	Report	Where	Remark
Oct 6, 1:05 PM EDT	FLASH FLOOD	5 E Salem, GA	THE BRIDGE ON SR 22 AT ULCOHATCHEE CREEK WAS CLOSED DUE TO FLOODING.
Oct 6, 2:00 PM EDT	FLASH FLOOD	1 E Salem, GA	US80E FLOODED NEAR SALEM BAPTIST CHURCH
Oct 6, 2:00 PM EDT	FLASH FLOOD	2 Ne Logtown, GA	BENTLEY ROAD WAS CLOSED BETWEEN KENDALL ROAD AND LOGTOWN ROAD DUE TO FLASH FLOODING.
Oct 6, 2:00 PM EDT	FLASH FLOOD	3 Se Logtown, GA	MT CARMEL RD IS CLOSED AT WRIGHTS CHURCH CREEK DUE TO FLOODING FROM HEAVY RAIN.
Oct 6, 2:00 PM EDT	FLASH FLOOD	4 Sse Logtown, GA	PLEASANT GROVE RD IS CLOSED BETWEEN KENDALL ROAD AND LOGTOWN ROAD DUE TO 2 CULVERT WASHOUTS CAUSED BY FLASH FLOODING.
Oct 6, 2:00 PM EDT	FLASH FLOOD	4 Sse Logtown, GA	PLEASENT GROVE RD IS CLOSED DUE TO A CULVERT WASHOUT CAUSED BY FLASH FLOODING
Oct 6, 3:00 PM EDT	FLASH FLOOD	Culloden, GA	FLOODING AFFECTING SEVERAL BUILDINGS IN THE CULLODEN AREA.

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, 2.5 hours before the alert went out and 72 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 468 J/kg
Mixed-layer CIN: -39 J/kg
Mixed-layer LCL: 623 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 154 m²/s²
0-3 km storm-relative helicity: 163 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.7

Open this sounding in Storm Lab

The text

As transmitted.

816 
WGUS52 KFFC 061431
FFWFFC
GAC079-171-207-293-062045-
/O.NEW.KFFC.FF.W.0043.211006T1431Z-211006T2045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Peachtree City GA
1031 AM EDT Wed Oct 6 2021

The National Weather Service in Peachtree City has issued a

* Flash Flood Warning for...
  Northwestern Crawford County in central Georgia...
  Southwestern Monroe County in central Georgia...
  Southeastern Lamar County in west central Georgia...
  Eastern Upson County in west central Georgia...

* Until 445 PM EDT Wednesday.

* At 1031 AM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 2 and 3 inches of rain 
  have fallen. Additional rainfall amounts of 1 to 2 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...
  Barnesville, Yatesville, Culloden, Logtown, Redbone and Salem.

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.

Please report observed flooding to local emergency services or law 
enforcement and request they pass this information to the National 
Weather Service when you can do so safely.

&&

LAT...LON 3289 8422 3300 8420 3304 8414 3305 8406
      3301 8402 3285 8402 3268 8406 3268 8410
      3268 8411 3268 8412 3268 8413 3268 8414
      3269 8414 3268 8415 3268 8420 3269 8420

FLASH FLOOD...RADAR INDICATED

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 5, 10:30 PM EDT	River Flood Warning	FFC	Barrow, Jackson	16 hr
Oct 5, 10:37 PM EDT	River Flood Warning	FFC	DeKalb, Rockdale	16 hr
Oct 5, 10:45 PM EDT	River Flood Warning	FFC	Newton, Rockdale	16 hr
Oct 5, 10:57 PM EDT	Special Weather Statement	FFC	Bleckley, Dodge, Pulaski	33 min
Oct 5, 11:33 PM EDT	Special Weather Statement	FFC	Bleckley	27 min
Oct 6, 12:01 AM EDT	Special Weather Statement	FFC	Bleckley	29 min
Oct 6, 3:27 AM EDT	Special Weather Statement	FFC	Crisp	63 min
Oct 6, 4:20 AM EDT	Special Weather Statement	FFC	Crisp, Dooly, Houston	55 min
Oct 6, 5:00 AM EDT	Flash Flood Warning	FFC	Dooly, Houston	6 hr
Oct 6, 5:30 AM EDT	Special Weather Statement	FFC	Bibb, Houston	60 min
Oct 6, 6:14 AM EDT	Flash Flood Warning	FFC	Bibb, Houston, Peach, Twiggs	6 hr
Oct 6, 7:06 AM EDT	Special Weather Statement	FFC	Bibb, Jones	54 min
Oct 6, 7:55 AM EDT	Special Weather Statement	FFC	Jones	65 min
Oct 6, 8:55 AM EDT	Flash Flood Warning	FFC	Bibb, Jasper, Jones, Twiggs	9 hr
Oct 6, 10:19 AM EDT	Special Weather Statement	FFC	Upson	56 min
Oct 6, 10:22 AM EDT	Special Weather Statement	FFC	Putnam	53 min
Oct 6, 10:42 AM EDT	Flash Flood Warning	FFC	Jasper, Jones, Putnam	7 hr
Oct 6, 11:42 AM EDT	Special Weather Statement	FFC	Pike	63 min
Oct 6, 12:18 PM EDT	Flash Flood Warning	FFC	Pike, Talbot, Upson	6 hr
Oct 6, 12:56 PM EDT	Special Weather Statement	FFC	Upson	34 min
Oct 6, 1:23 PM EDT	Flash Flood Warning	FFC	Crawford, Lamar, Pike, Taylor, Upson	4 hr
Oct 6, 1:30 PM EDT	Flash Flood Warning	FFC	Morgan, Putnam	5 hr
Oct 6, 1:59 PM EDT	River Flood Warning	FFC	Putnam	5 hr
Oct 6, 2:19 PM EDT	Tornado Warning	FFC	Monroe	26 min
Oct 6, 2:45 PM EDT	Special Weather Statement	FFC	Treutlen	30 min
Oct 6, 2:57 PM EDT	Flash Flood Warning	FFC	Bibb, Crawford, Monroe, Peach	5 hr
Oct 6, 3:38 PM EDT	Special Weather Statement	FFC	Laurens	37 min
Oct 6, 6:13 PM EDT	Flash Flood Warning	FFC	Jasper, Putnam	3 hr

Nearby

Flash Flood Warnings in Georgia, 2021 Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.