Alert archive / Georgia / Flash Flood Warnings in 2020

Flash Flood Warning 3, NWS Atlanta, GA

January 13, 2020Greene County, Taliaferro County, Wilkes County, Georgia

NWS Atlanta, GA issued this flash flood warning at Jan 13, 2020, 2:41 AM EST for Greene County, Taliaferro County, Wilkes County, Georgia. It was in force for 6 hr. 2 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: Jan 13, 2020, 2:41 AM EST (07:41 UTC)
Expired: Jan 13, 2020, 8:45 AM EST
In force: 6 hr
Issued by: NWS Atlanta, GA
Area: Storm-based polygon
Flood severity: None

Counties Greene County, GA, Taliaferro County, GA, Wilkes County, GA

The radar

The Robins AFB radar (KJGX), 128 km from the middle of the area, began a volume at 07:43 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
Jan 13, 7:00 AM EST	FLASH FLOOD	1 Sw Tyrone, GA	* 1 INJ * ROCKER ROAD NEAR GREENSBORO HIGHWAY WAS WASHED OUT BY FLASH FLOODING. A DRIVER WAS INJURED AND HAD TO BE RESCUED WHEN SHE DROVE INTO THE FLOODWATERS.
Jan 13, 7:00 AM EST	FLASH FLOOD	2 N Ficklin, GA	FLASH FLOODING CLOSED HAPPY HOLLOW ROAD OFF HIGHWAY 47. FLOODING ALSO AFFECTED MAXWELL MILL ROAD OFF HIGHWAY 44.

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, 7.7 hours before the alert went out and 169 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: 1501 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 192 m²/s²
0-3 km storm-relative helicity: 234 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

331 
WGUS52 KFFC 130741
FFWFFC
GAC133-265-317-131345-
/O.NEW.KFFC.FF.W.0003.200113T0741Z-200113T1345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Peachtree City GA
241 AM EST Mon Jan 13 2020

The National Weather Service in Peachtree City has issued a

* Flash Flood Warning for...
  Northeastern Greene County in east central Georgia...
  Taliaferro County in east central Georgia...
  Southern Wilkes County in east central Georgia...

* Until 845 AM EST Monday.

* At 240 AM EST, Doppler radar indicated thunderstorms producing
  heavy rain across the warned area. Up to two inches of rain have
  already fallen. Flash flooding is ongoing or 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...
  Washington, Greensboro, Crawfordville, Union Point, Woodville,
  White Plains, Siloam, Sharon, Ficklin, Lundberg, Veazey, Robinson,
  Metasville, Daniel Springs, Floral Hill, Holliday Park, Aonia,
  Rocky Creek Fire Dept., Lyneville and Alexander Stephens Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3364 8255 3364 8257 3365 8258 3364 8258
      3363 8262 3362 8262 3345 8313 3361 8326
      3370 8303 3369 8300 3374 8295 3387 8261
      3386 8260 3387 8258 3387 8257 3383 8260
      3366 8249

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

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 12, 10:07 PM EST	Special Weather Statement	FFC	Hancock	23 min
Jan 12, 11:10 PM EST	Special Weather Statement	FFC	Lamar, Meriwether, Pike	35 min
Jan 12, 11:44 PM EST	Special Weather Statement	FFC	Lamar, Pike, Spalding	46 min
Jan 13, 12:16 AM EST	Special Weather Statement	FFC	Butts, Jasper	44 min
Jan 13, 12:53 AM EST	Special Weather Statement	FFC	Jasper, Morgan	52 min
Jan 13, 1:34 AM EST	Dense Fog Advisory	FFC	Bleckley, Chattahoochee, Crisp, Dodge, Dooly, Emanuel and 16 more	7 hr
Jan 13, 1:51 AM EST	Special Weather Statement	FFC	Greene, Taliaferro, Wilkes	39 min
Jan 13, 5:21 AM EST	Special Weather Statement	FFC	Lamar, Upson	39 min
Jan 13, 7:59 AM EST	Flash Flood Warning	FFC	Coweta, Fayette, Meriwether, Pike, Spalding, Troup	4 hr
Jan 13, 8:59 AM EST	Flash Flood Warning	FFC	Greene, Oglethorpe, Taliaferro, Wilkes	3 hr
Jan 13, 10:12 AM EST	Flash Flood Watch	FFC	Banks, Barrow, Bartow, Butts, Carroll, Catoosa and 50 more	36 hr
Jan 13, 10:29 AM EST	River Flood Warning	FFC	Baldwin, Washington, Wilkinson	20 hr
Jan 13, 10:36 AM EST	River Flood Warning	FFC	Fayette, Spalding	70 hr
Jan 13, 2:23 PM EST	River Flood Warning	FFC	Bibb, Houston, Jones, Monroe, Twiggs	4 days
Jan 13, 2:23 PM EST	River Flood Warning	FFC	Taliaferro, Wilkes	43 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.