Alert archive / Georgia / Flash Flood Warnings in 2020

Flash Flood Warning 53, NWS Atlanta, GA

September 17, 20206 counties in Georgia

NWS Atlanta, GA issued this flash flood warning at Sep 17, 2020, 12:45 AM EDT for 6 counties in Georgia. It was in force for 7 hr. 4 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: Sep 17, 2020, 12:45 AM EDT (04:45 UTC)
Expired: Sep 17, 2020, 7:45 AM EDT
In force: 7 hr
Issued by: NWS Atlanta, GA
Area: Storm-based polygon
Flood severity: None

Counties Harris County, GA, Lamar County, GA, Monroe County, GA, Pike County, GA, Talbot County, GA, Upson County, GA

The radar

The Atlanta radar (KFFC), 63 km from the middle of the area, began a volume at 04:49 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
Sep 17, 4:00 AM EDT	FLASH FLOOD	2 Ssw The Rock, GA	ROCK HILL SCHOOL ROAD NEAR BICKLEY LAKE AND LITTLE SWIFT CREEK HAD DEBRIS AND GRAVEL OVER THE ROAD LIKELY FROM HIGH WATER. TIME ESTIMATED.
Sep 17, 5:15 AM EDT	FLASH FLOOD	2 Nne Hilltop, GA	SEVERAL ROADS CLOSED DUE TO HIGH WATER ACROSS RURAL NORTH PIKE COUNTY.
Sep 17, 5:15 AM EDT	FLASH FLOOD	3 Ssw Hollonville, GA	FRIENDSHIP CIRCLE IS CLOSED DUE TO HIGH WATER BETWEEN HOOD ROAD AND PEDENVILL ROAD.
Sep 17, 5:15 AM EDT	FLASH FLOOD	Zebulon, GA	SEVERAL ROAD CLOSURES DUE TO HIGH WATER NEAR ZEBULON.

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 00:00Z, 4.8 hours before the alert went out and 63 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 540 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 263 m²/s²
0-3 km storm-relative helicity: 345 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

463 
WGUS52 KFFC 170445
FFWFFC
GAC145-171-207-231-263-293-171045-
/O.NEW.KFFC.FF.W.0053.200917T0445Z-200917T1045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Peachtree City GA
1245 AM EDT Thu Sep 17 2020

The National Weather Service in Peachtree City has issued a

* Flash Flood Warning for...
  Monroe County in central Georgia...
  Harris County in west central Georgia...
  Lamar County in west central Georgia...
  Pike County in west central Georgia...
  Talbot County in west central Georgia...
  Upson County in west central Georgia...

* Until 645 AM EDT.

* At 1245 AM EDT, Doppler radar indicated heavy rain across the 
  warned area. Between 1 and 3 inches of rain have fallen. Flash 
  flooding is ongoing or expected to begin shortly.

  HAZARD...Flash flooding caused by heavy rain.

  SOURCE...Doppler radar.

  IMPACT...Flooding of small creeks and streams, urban areas,
           highways, streets and underpasses as well as other
           drainage and low lying areas.

* Some locations that will experience flash flooding include...
  Griffin, Thomaston, Barnesville, Forsyth, Zebulon, Hamilton, 
  Talbotton, Manchester, Pine Mountain, Waverly Hall, Milner, 
  Woodland, Molena, Yatesville, Williamson, Orchard Hill, 
  Meansville, Junction City, Culloden and Geneva.

Additional rainfall amounts of 1 to 3 inches with localized heavier 
amounts are possible in the warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

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 3285 8457 3288 8451 3310 8453 3318 8451
      3321 8445 3320 8384 3296 8371 3285 8389
      3285 8412 3269 8420 3270 8420 3275 8429
      3272 8434 3256 8441 3252 8458 3252 8469
      3256 8467 3258 8469 3261 8508 3286 8518

FLASH FLOOD...RADAR INDICATED

$$

3 follow-up statements

717 
WGUS52 KFFC 171009
FFWFFC
GAC171-207-231-293-171145-
/O.EXT.KFFC.FF.W.0053.000000T0000Z-200917T1145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Peachtree City GA
609 AM EDT Thu Sep 17 2020

The National Weather Service in Peachtree City has extended the

* Flash Flood Warning for...
  Monroe County in central Georgia...
  Lamar County in west central Georgia...
  Pike County in west central Georgia...
  Upson County in west central Georgia...

* Until 745 AM EDT.

* At 609 AM EDT, Doppler radar indicated heavy rain in the warned 
  area. Between 2 and 4 inches of rain have fallen. Flash flooding 
  is ongoing or expected to begin shortly.

  HAZARD...Flash flooding caused by heavy rain.

  SOURCE...Doppler radar.

  IMPACT...Flooding of small creeks and streams, urban areas,
           highways, streets and underpasses as well as other
           drainage and low lying areas.

* Some locations that will experience flash flooding include...
  Thomaston, Barnesville, Forsyth, Zebulon, Milner, Molena, 
  Yatesville, Williamson, Orchard Hill, Meansville, Culloden, 
  Aldora, The Rock, Lincoln Park, Sunset Village, Concord, Redbone, 
  Piedmont, Goggins and Johnstonville.

Additional rainfall amounts up to 1 inch are possible in the warned 
area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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 3307 8453 3309 8451 3310 8453 3318 8451
      3321 8445 3318 8422 3318 8412 3320 8412
      3320 8386 3296 8371 3285 8389 3285 8412
      3270 8420 3274 8424 3278 8438 3284 8442
      3283 8445 3286 8449 3287 8448 3288 8451

FLASH FLOOD...RADAR INDICATED

$$

718 
WGUS72 KFFC 171009
FFSFFC

Flash Flood Statement
National Weather Service Peachtree City GA
609 AM EDT Thu Sep 17 2020

GAC145-263-171019-
/O.CAN.KFFC.FF.W.0053.000000T0000Z-200917T1045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Harris GA-Talbot GA-
609 AM EDT Thu Sep 17 2020

...FLASH FLOOD WARNING IS CANCELLED FOR HARRIS AND TALBOT COUNTIES...

Light rain is possible over the next few hours but the threat of 
flash flooding due to heavy rain has ended. Flooding is no longer 
expected to pose a threat. Please continue to heed remaining road 
closures.

A Flash Flood Watch remains in effect until 800 AM EDT Friday for 
portions of central Georgia...east central Georgia...north central 
Georgia...northeast Georgia...northwest Georgia and west central 
Georgia.

LAT...LON 3307 8453 3309 8451 3310 8453 3318 8451
      3321 8445 3318 8422 3318 8412 3320 8412
      3320 8386 3296 8371 3285 8389 3285 8412
      3270 8420 3274 8424 3278 8438 3284 8442
      3283 8445 3286 8449 3287 8448 3288 8451

$$

998 
WGUS72 KFFC 171151
FFSFFC

Flash Flood Statement
National Weather Service Peachtree City GA
751 AM EDT Thu Sep 17 2020

GAC171-207-231-293-171201-
/O.EXP.KFFC.FF.W.0053.000000T0000Z-200917T1145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lamar GA-Monroe GA-Pike GA-Upson GA-
751 AM EDT Thu Sep 17 2020

...FLASH FLOOD WARNING HAS EXPIRED FOR MONROE, LAMAR, PIKE AND UPSON 
COUNTIES...

The heavy rain has ended. Increased flooding is no longer expected. 
However, please continue to heed remaining road closures as several 
are still in effect for washed out roadways.

A Flash Flood Watch remains in effect until 800 AM EDT Friday for 
portions of central Georgia...east central Georgia...north central 
Georgia...northeast Georgia...northwest Georgia and west central 
Georgia.

LAT...LON 3307 8453 3309 8451 3310 8453 3318 8451
      3321 8445 3318 8422 3318 8412 3320 8412
      3320 8386 3296 8371 3285 8389 3285 8412
      3270 8420 3274 8424 3278 8438 3284 8442
      3283 8445 3286 8449 3287 8448 3288 8451

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 16, 9:10 PM EDT	Flash Flood Warning	FFC	Chattahoochee, Marion, Muscogee, Schley, Stewart, Sumter and 1 more	6 hr
Sep 16, 11:25 PM EDT	Flash Flood Warning	FFC	Crisp, Dooly, Macon, Taylor	7 hr
Sep 17, 12:00 AM EDT	Flash Flood Warning	FFC	Bibb, Bleckley, Crawford, Houston, Peach, Pulaski and 2 more	11 hr
Sep 17, 1:13 AM EDT	Flash Flood Warning	FFC	Meriwether, Troup	5 hr
Sep 17, 2:49 AM EDT	Flash Flood Warning	FFC	Butts, Clayton, Coweta, Fayette, Fulton, Henry and 1 more	7 hr
Sep 17, 2:59 AM EDT	Flash Flood Warning	FFC	Baldwin, Jones, Wilkinson	8 hr
Sep 17, 3:29 AM EDT	Flash Flood Warning	FFC	Chattahoochee, Marion, Muscogee, Schley, Stewart, Sumter and 1 more	3 hr
Sep 17, 3:34 AM EDT	Flash Flood Warning	FFC	DeKalb, Gwinnett, Newton, Rockdale	6 hr
Sep 17, 3:39 AM EDT	Flash Flood Warning	FFC	Cobb, Douglas, Fulton	6 hr
Sep 17, 4:29 AM EDT	River Flood Warning	FFC	DeKalb, Fulton	8 hr
Sep 17, 4:32 AM EDT	River Flood Warning	FFC	DeKalb	11 hr
Sep 17, 4:32 AM EDT	River Flood Warning	FFC	DeKalb, Fulton	10 hr
Sep 17, 4:35 AM EDT	River Flood Warning	FFC	DeKalb	6 hr
Sep 17, 4:42 AM EDT	River Flood Warning	FFC	Fulton, Gwinnett	7 hr
Sep 17, 4:45 AM EDT	River Flood Warning	FFC	Fayette, Spalding	55 hr
Sep 17, 4:45 AM EDT	River Flood Warning	FFC	Crawford, Talbot, Taylor, Upson	28 hr
Sep 17, 4:45 AM EDT	River Flood Warning	FFC	Clayton, Fayette, Spalding	32 hr
Sep 17, 4:50 AM EDT	River Flood Warning	FFC	Chattahoochee, Muscogee	17 hr
Sep 17, 5:04 AM EDT	River Flood Warning	FFC	Lamar, Spalding	9 hr
Sep 17, 5:07 AM EDT	River Flood Warning	FFC	DeKalb, Rockdale	38 hr
Sep 17, 5:07 AM EDT	River Flood Warning	FFC	Forsyth, Fulton	43 hr
Sep 17, 5:07 AM EDT	River Flood Warning	FFC	Gwinnett	25 hr
Sep 17, 5:07 AM EDT	River Flood Warning	FFC	Newton, Rockdale	47 hr
Sep 17, 5:13 AM EDT	Flash Flood Warning	FFC	Hancock, Jasper, Putnam, Washington	6 hr
Sep 17, 5:16 AM EDT	River Flood Warning	FFC	Pulaski	6 hr
Sep 17, 5:16 AM EDT	River Flood Warning	FFC	Bibb, Houston, Jones, Monroe, Twiggs	4 days
Sep 17, 5:36 AM EDT	River Flood Warning	FFC	Gwinnett	5 hr
Sep 17, 5:39 AM EDT	River Flood Warning	FFC	Barrow, Jackson	34 hr
Sep 17, 5:39 AM EDT	River Flood Warning	FFC	Johnson, Washington, Wilkinson	5 days
Sep 17, 5:39 AM EDT	River Flood Warning	FFC	Baldwin, Washington, Wilkinson	39 hr
Sep 17, 5:39 AM EDT	River Flood Warning	FFC	Clarke, Greene, Oconee	64 hr
Sep 17, 5:43 AM EDT	River Flood Warning	FFC	DeKalb, Fulton	10 hr
Sep 17, 6:00 AM EDT	River Flood Warning	FFC	DeKalb	4 hr
Sep 17, 6:42 AM EDT	Flash Flood Warning	FFC	Glascock, Jefferson, Warren	6 hr
Sep 17, 6:44 AM EDT	River Flood Warning	FFC	Cobb	4 hr
Sep 17, 6:51 AM EDT	River Flood Warning	FFC	Gwinnett, Walton	12 hr
Sep 17, 6:54 AM EDT	River Flood Warning	FFC	Gwinnett	11 hr
Sep 17, 6:58 AM EDT	River Flood Warning	FFC	Cobb	7 hr
Sep 17, 7:09 AM EDT	River Flood Warning	FFC	Forsyth	16 hr
Sep 17, 7:18 AM EDT	River Flood Warning	FFC	DeKalb, Fulton	118 min
Sep 17, 7:22 AM EDT	River Flood Warning	FFC	Cobb	7 hr
Sep 17, 7:27 AM EDT	River Flood Warning	FFC	Gwinnett	8 hr
Sep 17, 7:31 AM EDT	River Flood Warning	FFC	Fulton	12 hr
Sep 17, 7:47 AM EDT	Flash Flood Warning	FFC	Greene, Taliaferro	5 hr
Sep 17, 9:23 AM EDT	River Flood Warning	FFC	Cherokee, Cobb	5 hr
Sep 17, 9:28 AM EDT	River Flood Warning	FFC	Cobb, Fulton	16 hr
Sep 17, 10:31 AM EDT	River Flood Warning	FFC	Cobb, Fulton	13 hr
Sep 17, 10:31 AM EDT	River Flood Warning	FFC	Cobb, Fulton	11 hr
Sep 17, 10:31 AM EDT	River Flood Warning	FFC	Carroll, Coweta, Heard	12 hr
Sep 17, 11:03 AM EDT	River Flood Warning	FFC	Jefferson, Washington	23 hr
Sep 17, 11:23 AM EDT	River Flood Warning	FFC	Jones	15 hr
Sep 17, 1:31 PM EDT	River Flood Warning	FFC	Johnson, Laurens, Washington, Wilkinson	44 hr
Sep 17, 2:25 PM EDT	River Flood Warning	FFC	Newton, Rockdale	6 hr
Sep 17, 2:40 PM EDT	River Flood Warning	FFC	Taliaferro, Wilkes	33 hr
Sep 17, 2:44 PM EDT	River Flood Warning	FFC	Jefferson	3 hr
Sep 17, 3:32 PM EDT	River Flood Warning	FFC	Coweta, Fayette, Spalding	11 hr
Sep 17, 6:42 PM EDT	River Flood Warning	FFC	Elbert, Madison, Oglethorpe	3 hr
Sep 17, 7:22 PM EDT	River Flood Warning	FFC	Dooly	4 hr

Nearby

Flash Flood Warnings in Georgia, 2020 Every flash flood warning in 2020

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.