Alert archive / Georgia / Flash Flood Warnings in 2021

Flash Flood Warning 38, NWS Greenville-Spartanburg, SC

October 7, 2021Elbert County, Hart County, Georgia

NWS Greenville-Spartanburg, SC issued this flash flood warning at Oct 7, 2021, 6:12 AM EDT for Elbert County, Hart County, Georgia. It was in force for 3 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: Oct 7, 2021, 6:12 AM EDT (10:12 UTC)
Expired: Oct 7, 2021, 9:15 AM EDT
In force: 3 hr
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon
Flood severity: None

Counties Elbert County, GA, Hart County, GA

The radar

The Greer radar (KGSP), 104 km from the middle of the area, began a volume at 10:13 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 7, 6:30 AM EDT	FLASH FLOOD	3 Se Bowman, GA	ALLEN WHITE ROAD NEAR DEEP CREEK DAMAGED DUE TO FLASH FLOODING.
Oct 7, 6:40 AM EDT	FLASH FLOOD	2 Wsw Bowman, GA	BUTLER CREEK OVERTOPPED DUSTY RD. CAR DROVE INTO FLOODWATERS AND 3 PEOPLE RESCUED.
Oct 7, 7:00 AM EDT	FLASH FLOOD	5 Nnw Elberton, GA	BEAVERDAM CREEK FLOODED SELECT BRIDGES AND ADJACENT FLOODPLAIN PROPERTY FROM PULLIAM MILL ROAD DOWNSTREAM TO HARTWELL HWY.
Oct 7, 7:00 AM EDT	FLASH FLOOD	6 Nnw Elberton, GA	BROWN BROTHERS ROAD FLOODED.

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, 10.2 hours before the alert went out and 166 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: 574 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 633 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 116 m²/s²
0-3 km storm-relative helicity: 195 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 2.3

Open this sounding in Storm Lab

The text

As transmitted.

843 
WGUS52 KGSP 071012
FFWGSP
GAC105-147-071315-
/O.NEW.KGSP.FF.W.0038.211007T1012Z-211007T1315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Greenville-Spartanburg SC
612 AM EDT Thu Oct 7 2021

The National Weather Service in Greenville-Spartanburg has issued a

* Flash Flood Warning for...
  Northwestern Elbert County in northeastern Georgia...
  Southwestern Hart County in northeastern Georgia...

* Until 915 AM EDT.

* At 612 AM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 2 and 4 inches of rain 
  have fallen. Flash flooding is already occurring along Beaverdam 
  Creek and its tributaries in northern Elbert County and southern 
  Hart County.

  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. Multiple
           roads along Beaverdam Creek will be inundated between
           Elberton and Dewy Rose.

* Some locations that will experience flash flooding include...
  Elberton, Bowman, Dewy Rose and Vanna.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

When it is safe to do so, please report flooding or landslides 
threatening roads or property to the National Weather Service 
Greenville-Spartanburg by calling toll free, 1, 800, 2 6 7, 8 1 0 1, 
by posting on our Facebook page, or via Twitter using hashtag 
NWSGSP. Your message should describe the specific location where 
impacts occurred and the depth of flooding observed.

&&

LAT...LON 3423 8307 3427 8311 3429 8295 3411 8282
      3411 8295 3419 8308

FLASH FLOOD...RADAR INDICATED

$$

Lane

2 follow-up statements

382 
WGUS72 KGSP 071122
FFSGSP

Flash Flood Statement
National Weather Service Greenville-Spartanburg SC
722 AM EDT Thu Oct 7 2021

GAC105-147-071315-
/O.CON.KGSP.FF.W.0038.000000T0000Z-211007T1315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Elbert GA-Hart GA-
722 AM EDT Thu Oct 7 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 915 AM EDT THIS 
MORNING FOR NORTHWESTERN ELBERT AND SOUTHWESTERN HART COUNTIES...

At 722 AM EDT, Stream gauges reports indicated flash flooding 
occurring across the warned area. Between 2 and 4 inches of rain 
have fallen. Another round of heavy rainfall was moving back into 
the warning area, and additional rainfall amounts of up to 2 inches 
are possible in the warned area this morning.

HAZARD...Life threatening flash flooding. Thunderstorms producing
         flash flooding.

SOURCE...Gauges reported.

IMPACT...Life threatening flash flooding of creeks and streams,
         urban areas, highways, streets and underpasses.
         Beaverdam Creek will inundate multiple roads and other
         low lying areas between Elberton and Dewy Rose.
         Tributaries of Beaverdam Creek are also likely overflow
         their banks.

Some locations that will experience flash flooding include...
  Elberton, Bowman, Dewy Rose and Vanna.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3423 8307 3427 8311 3429 8295 3411 8282
      3411 8295 3419 8308

FLASH FLOOD...GAUGE INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

Lane

909 
WGUS72 KGSP 071313
FFSGSP

Flash Flood Statement
National Weather Service Greenville-Spartanburg SC
913 AM EDT Thu Oct 7 2021

GAC105-147-071323-
/O.EXP.KGSP.FF.W.0038.000000T0000Z-211007T1315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Elbert GA-Hart GA-
913 AM EDT Thu Oct 7 2021

...FLASH FLOOD WARNING AT 915 AM EDT THIS MORNING FOR NORTHWESTERN 
ELBERT AND SOUTHWESTERN HART COUNTIES HAS BEEN REPLACED WITH A FLOOD 
WARNING...

The Flash Flood Warning has been replaced with a Flood Warning as 
flooding is expected to continue along Beaverdam Creek well into the 
afternoon hours due to earlier heavy rain.

LAT...LON 3423 8307 3427 8311 3429 8295 3411 8282
      3411 8295 3419 8308

$$

JMP

The office that day

Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 7, 3:38 AM EDT	Special Weather Statement	GSP	Habersham, Rabun	37 min
Oct 7, 4:21 AM EDT	Areal Flood Advisory	GSP	Habersham, Rabun	2 hr
Oct 7, 4:45 AM EDT	Areal Flood Advisory	GSP	Elbert, Hart	3 hr
Oct 7, 6:26 AM EDT	Areal Flood Advisory	GSP	Habersham, Rabun	4 hr
Oct 7, 7:08 AM EDT	Areal Flood Advisory	GSP	Rabun	3 hr
Oct 7, 8:26 AM EDT	Areal Flood Warning	GSP	Rabun	6 hr
Oct 7, 9:11 AM EDT	Areal Flood Warning	GSP	Elbert, Hart	35 hr
Oct 7, 10:39 AM EDT	Areal Flood Warning	GSP	Habersham	7 hr
Oct 7, 4:30 PM EDT	Areal Flood Advisory	GSP	Hart	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.