Alert archive / Georgia / Flash Flood Warnings in 2020

Flash Flood Warning 20, NWS Atlanta, GA

April 19, 20207 counties in Georgia

NWS Atlanta, GA issued this flash flood warning at Apr 19, 2020, 6:38 PM EDT for 7 counties in Georgia. It was in force for 12 hr. 10 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: Apr 19, 2020, 6:38 PM EDT (22:38 UTC)
Expired: Apr 20, 2020, 6:16 AM EDT
In force: 12 hr
Issued by: NWS Atlanta, GA
Area: Storm-based polygon
Flood severity: None

Counties Chattahoochee County, GA, Harris County, GA, Marion County, GA, Muscogee County, GA, Stewart County, GA, Talbot County, GA, Webster County, GA

The radar

The Maxwell AFB radar (KMXX), 88 km from the middle of the area, began a volume at 22:42 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
Apr 19, 7:20 PM EDT	FLASH FLOOD	3 N Upatoi, GA	ROADS IN THE AREA OF BOYD BRANCH DR WERE FLOODED FROM OVERFILLED DITCHES. YARDS WERE ALSO FLOODED. RAINFALL TOTAL FOR THE DAY AS OF 0916 PM WAS 5.43 INCHES.
Apr 19, 9:06 PM EDT	FLASH FLOOD	2 Sw Cataula, GA	STANDING BOY CREEK AT HWY 27 IS FLOODED AND BLOCKED OFF.
Apr 19, 9:06 PM EDT	FLASH FLOOD	3 Ene Goat Rock Lake, GA	CANNON RD OFF HWY 315 NEAR FORTSON AND WHITESVILLE RD IN FORTSON ARE FLOODED AND BLOCKED OFF.
Apr 19, 9:30 PM EDT	FLASH FLOOD	1 Nnw Olive Branch, GA	POWELL CHURCH ROAD WAS REPORTED CLOSED DUE TO FLOODING.
Apr 19, 9:30 PM EDT	FLASH FLOOD	3 Ene Geneva, GA	CARLISLE ROAD WAS REPORTED CLOSED DUE TO FLOODING.
Apr 19, 9:30 PM EDT	FLASH FLOOD	3 Se Woodland, GA	TOM BUFFINGTON ROAD WAS REPORTED CLOSED DUE TO FLOODING.
Apr 19, 9:30 PM EDT	FLASH FLOOD	Talbotton, GA	LAMAR LANE WAS REPORTED CLOSED DUE TO FLOODING.
Apr 19, 10:06 PM EDT	FLASH FLOOD	1 Nw Green Island Hills, GA	BRIDGE UNDERWATER IN THE STANDING BOY SUBDIVISION FROM FLOODING OF STANDING BOY CREEK IN COLUMBUS
Apr 19, 10:06 PM EDT	FLASH FLOOD	1 Sse Green Island Hill, GA	BASEMENT REPORTED FLOODED NEAR THE INTERSECTION OF CASCADE RD AND ROARING BRANCH RD
Apr 19, 11:00 PM EDT	FLASH FLOOD	2 Ene Baughville, GA	CALLIER ROAD AND HOWARD ROAD WERE BOTH 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, 10.6 hours before the alert went out and 115 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: 1440 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 88 m²/s²
0-3 km storm-relative helicity: 105 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

819 
WGUS52 KFFC 192238
FFWFFC
GAC053-145-197-215-259-263-307-200430-
/O.NEW.KFFC.FF.W.0020.200419T2238Z-200420T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Peachtree City GA
638 PM EDT Sun Apr 19 2020

The National Weather Service in Peachtree City has issued a

* Flash Flood Warning for...
  Marion County in west central Georgia...
  Muscogee County in west central Georgia...
  Chattahoochee County in west central Georgia...
  Stewart County in west central Georgia...
  Webster County in west central Georgia...
  Talbot County in west central Georgia...
  Harris County in west central Georgia...

* Until 1230 AM EDT.

* At 635 PM EDT, Doppler radar indicated heavy rainfall has occurred 
  over the area, and thunderstorms moving into the area will produce 
  additional heavy rainfall in the next few hours. Up to two inches 
  of rain have already fallen, with locally higher amounts. Flash 
  flooding is expected to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar indicated.

  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 flooding include...
  Columbus, Lumpkin, Buena Vista, Hamilton, Talbotton, Cusseta,
  Preston, Richland, Pine Mountain, Waverly Hall, Woodland, Junction
  City, Geneva, Fort Benning/lawson Army Air Fld, North Fort Benning,
  Weston, Bibb City, Upatoi, Brantley and Seminole.

Additional rainfall amounts of 1 to 3 inches are possible in the 
warned area through midnight tonight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3192 8491 3195 8496 3198 8496 3199 8507
      3213 8506 3222 8498 3226 8489 3233 8501
      3244 8497 3264 8511 3274 8511 3276 8514
      3278 8512 3287 8519 3286 8474 3275 8441
      3256 8442 3254 8445 3248 8442 3193 8445

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-2 INCHES IN 1 HOUR

$$

3 follow-up statements

944 
WGUS72 KFFC 200054
FFSFFC

Flash Flood Statement
National Weather Service Peachtree City GA
854 PM EDT Sun Apr 19 2020

GAC053-145-197-215-259-263-307-200430-
/O.CON.KFFC.FF.W.0020.000000T0000Z-200420T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Marion GA-Muscogee GA-Chattahoochee GA-Stewart GA-Webster GA-
Talbot GA-Harris GA-
854 PM EDT Sun Apr 19 2020

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1230 AM EDT FOR
MARION...MUSCOGEE...CHATTAHOOCHEE...STEWART...WEBSTER...TALBOT AND
HARRIS COUNTIES...

At 853 PM EDT, the public reported flash flooding of roadways and 
small creeks due to heavy rain in portions of the warned area. Two 
to 5 inches have fallen, with locally higher amounts. Flash flooding 
is ongoing or expected to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Public.

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 flooding include...
Columbus, Lumpkin, Buena Vista, Hamilton, Talbotton, Cusseta,
Preston, Richland, Pine Mountain, Waverly Hall, Woodland, Junction 
City, Geneva, Fort Benning/Lawson Army Air Fld, North Fort Benning, 
Weston, Bibb City, Upatoi, Brantley and Seminole.

Additional rainfall amounts of 1 to 3 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.

&&

LAT...LON 3192 8491 3195 8496 3198 8496 3199 8507
      3213 8506 3222 8498 3226 8489 3233 8501
      3244 8497 3264 8511 3274 8511 3276 8514
      3278 8512 3287 8519 3286 8474 3275 8441
      3256 8442 3254 8445 3248 8442 3193 8445

FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL...1-2 INCHES IN 1 HOUR

$$

471 
WGUS52 KFFC 200355
FFWFFC
GAC053-145-197-215-259-263-307-201030-
/O.EXT.KFFC.FF.W.0020.000000T0000Z-200420T1030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Peachtree City GA
1155 PM EDT Sun Apr 19 2020

The National Weather Service in Peachtree City has extended the

* Flash Flood Warning for...
  Marion County in west central Georgia...
  Muscogee County in west central Georgia...
  Chattahoochee County in west central Georgia...
  Stewart County in west central Georgia...
  Webster County in west central Georgia...
  Talbot County in west central Georgia...
  Harris County in west central Georgia...

* Until 630 AM EDT Monday.

* At 1155 PM EDT, the public reported thunderstorms producing heavy 
  rain across the warned area. 3 to 6 inches of rain have fallen. 
  Flash flooding is already occurring.

  HAZARD...Life threatening flash flooding. Heavy rain producing 
           flash flooding.

  SOURCE...Public.

  IMPACT...Life threatening flash flooding of creeks and streams, 
           urban areas, highways, streets and underpasses.

* Some locations that will experience flooding include...
  Columbus, Lumpkin, Buena Vista, Hamilton, Talbotton, Cusseta,
  Preston, Richland, Pine Mountain, Waverly Hall, Woodland, Junction
  City, Geneva, Fort Benning/Lawson Army Air Fld, North Fort Benning,
  Weston, Bibb City, Upatoi, Brantley and Seminole.

Additional rainfall amounts of 2 to 3 inches 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.

&&

LAT...LON 3192 8491 3195 8496 3198 8496 3199 8507
      3213 8506 3222 8498 3226 8489 3233 8501
      3244 8497 3264 8511 3274 8511 3276 8514
      3278 8512 3287 8519 3286 8474 3275 8441
      3256 8442 3254 8445 3248 8442 3193 8445

FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

785 
WGUS72 KFFC 201016
FFSFFC

Flash Flood Statement
National Weather Service Peachtree City GA
616 AM EDT Mon Apr 20 2020

GAC053-145-197-215-259-263-307-201026-
/O.CAN.KFFC.FF.W.0020.000000T0000Z-200420T1030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Marion GA-Muscogee GA-Chattahoochee GA-Stewart GA-Webster GA-
Talbot GA-Harris GA-
616 AM EDT Mon Apr 20 2020

...THE FLASH FLOOD WARNING FOR MARION...MUSCOGEE...CHATTAHOOCHEE...
STEWART...WEBSTER...TALBOT AND HARRIS COUNTIES IS CANCELLED...

The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed any remaining road closures.

LAT...LON 3192 8491 3195 8496 3198 8496 3199 8507
      3213 8506 3222 8498 3226 8489 3233 8501
      3244 8497 3264 8511 3274 8511 3276 8514
      3278 8512 3287 8519 3286 8474 3275 8441
      3256 8442 3254 8445 3248 8442 3193 8445

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 19, 7:28 AM EDT	Special Weather Statement	FFC	Coweta, Heard, Troup	32 min
Apr 19, 7:58 AM EDT	Special Weather Statement	FFC	Clayton, Coweta, Fayette, Henry, Spalding	47 min
Apr 19, 8:52 AM EDT	Special Weather Statement	FFC	Harris, Troup	38 min
Apr 19, 8:58 AM EDT	Special Weather Statement	FFC	Jasper, Morgan, Putnam	32 min
Apr 19, 9:03 AM EDT	Special Weather Statement	FFC	Baldwin, Washington	27 min
Apr 19, 9:08 AM EDT	Special Weather Statement	FFC	Chattahoochee, Marion	52 min
Apr 19, 9:28 AM EDT	Special Weather Statement	FFC	Webster	47 min
Apr 19, 9:30 AM EDT	Special Weather Statement	FFC	Wilkinson	45 min
Apr 19, 10:02 AM EDT	Special Weather Statement	FFC	Sumter	28 min
Apr 19, 10:29 AM EDT	Special Weather Statement	FFC	Crisp	31 min
Apr 19, 10:48 AM EDT	Special Weather Statement	FFC	Macon, Schley	42 min
Apr 19, 10:53 AM EDT	Severe Thunderstorm Warning	FFC	Macon, Schley, Taylor	37 min
Apr 19, 11:05 AM EDT	Special Weather Statement	FFC	Dodge	25 min
Apr 19, 11:14 AM EDT	Special Weather Statement	FFC	Telfair	31 min
Apr 19, 11:16 AM EDT	Severe Thunderstorm Warning	FFC	Dooly, Houston, Macon, Pulaski	29 min
Apr 19, 11:32 AM EDT	Special Weather Statement	FFC	Dodge, Wheeler	28 min
Apr 19, 11:41 AM EDT	Severe Thunderstorm Warning	FFC	Bleckley, Dodge, Laurens, Pulaski	34 min
Apr 19, 11:51 AM EDT	Special Weather Statement	FFC	Houston	24 min
Apr 19, 12:06 PM EDT	Severe Thunderstorm Warning	FFC	Dodge, Laurens, Montgomery, Treutlen, Wheeler	24 min
Apr 19, 12:15 PM EDT	Special Weather Statement	FFC	Bleckley, Pulaski	30 min
Apr 19, 12:30 PM EDT	Special Weather Statement	FFC	Montgomery, Toombs	30 min
Apr 19, 1:34 PM EDT	Special Weather Statement	FFC	Bleckley, Laurens	26 min
Apr 19, 2:00 PM EDT	Special Weather Statement	FFC	Laurens, Treutlen	30 min
Apr 19, 2:06 PM EDT	Special Weather Statement	FFC	Stewart, Webster	24 min
Apr 19, 2:36 PM EDT	Special Weather Statement	FFC	Webster	24 min
Apr 19, 2:58 PM EDT	Special Weather Statement	FFC	Dooly, Sumter	32 min
Apr 19, 6:42 PM EDT	Special Weather Statement	FFC	Harris	33 min
Apr 19, 7:15 PM EDT	Special Weather Statement	FFC	Crawford, Harris, Muscogee, Talbot, Taylor	30 min
Apr 19, 7:23 PM EDT	Flash Flood Warning	FFC	Crawford, Houston, Macon, Marion, Peach, Schley and 2 more	11 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.