Alert archive / Georgia / Flash Flood Warnings in 2017

Flash Flood Warning 2, NWS Greenville-Spartanburg, SC

April 5, 2017Elbert County, Georgia

NWS Greenville-Spartanburg, SC issued this flash flood warning at Apr 5, 2017, 1:04 PM EDT for Elbert County, Georgia. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Apr 5, 2017, 1:04 PM EDT (17:04 UTC)
Expired
Apr 5, 2017, 4:00 PM EDT
In force
3 hr
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon
Flood severity
None

County Elbert County, GA

The radar

The Greer radar (KGSP), 106 km from the middle of the area, began a volume at 17:06 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.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 5.1 hours before the alert went out and 176 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-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 12:00Z on 2017-04-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 703 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 12:00Z on 2017-04-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 320 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
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
703 J/kg
Mixed-layer CIN
-129 J/kg
Mixed-layer LCL
624 m above ground
0-6 km bulk shear
71 kt
0-1 km storm-relative helicity
320 m²/s²
0-3 km storm-relative helicity
264 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.2

Open this sounding in Storm Lab

The text

As transmitted.

015 
WGUS52 KGSP 051704
FFWGSP
GAC105-052000-
/O.NEW.KGSP.FF.W.0002.170405T1704Z-170405T2000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Greenville-Spartanburg SC
104 PM EDT WED APR 5 2017

The National Weather Service in Greenville-Spartanburg has issued a

* Flash Flood Warning for...
  Southern Elbert County in northeastern Georgia...

* Until 400 PM EDT

* At 100 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain encroaching upon Elbert county.  Additional rounds of 
  heavy rainfall are expected the afternoon, and given this 
  morning's heavy rain from around Elberton and points southward, 
  flooding of roads, and streams rising to above bankfull levels, 
  will be possible.

  Flooding may develop on, but not be limited to roads along parts 
of Chastain and Col Dixon Roads. Flooding along River Road near 
Falling Creek will be possible as well.

* Some locations that will experience flooding include...
  Elberton, Nancy Hart State Park, Middleton, Lake Strom Thurmond,
  Russell State Park, Lake Russell, Fortsonia, Sweet City, Rice Town
  and Ruckersville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Most flood deaths occur in vehicles. Do not attempt to cross
water-covered roadways, bridges, or low-level crossings. Only a few
inches of rapidly flowing water can carry away your vehicle. It is
not worth the risk. Please TURN AROUND, DON'T DROWN.

When it is safe to do so, please report flood waters or landslides
flowing over roads or threatening property to the National Weather
Service 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 event and the specific location where it
occurred, including roadways, nearby cross streets, stream names and
other landmarks.

&&

LAT...LON 3399 8283 3398 8286 3401 8291 3401 8294
      3403 8294 3404 8298 3408 8301 3420 8274
      3415 8272 3413 8267 3409 8264 3407 8264
      3406 8263 3403 8259 3401 8259 3397 8278

$$

CSH
2 follow-up statements
778 
WGUS72 KGSP 051813
FFSGSP

Flash Flood Statement
National Weather Service Greenville-Spartanburg SC
213 PM EDT WED APR 5 2017

GAC105-052000-
/O.CON.KGSP.FF.W.0002.000000T0000Z-170405T2000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Elbert GA-
213 PM EDT WED APR 5 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 400 PM EDT FOR
SOUTHEASTERN ELBERT COUNTY...

At 205 PM EDT, Doppler radar indicated that the heaviest storms have 
moved east of the warned area, with rainfall totals as much as 4 
inches across southern parts of Elbert County. Locally excessive 
runoff will continue through mid-afternoon all across the small 
drainages of the Broad River and Lake Russell, again mainly south of 
Elberton, Carlton and Russell Dam. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Please report flood waters or landslides flowing over roads or 
threatening property to the National Weather Service 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 
event and the specific location where it occurred, including 
roadways, nearby cross streets, stream names and other landmarks.

&&

LAT...LON 3399 8283 3398 8286 3401 8291 3401 8294
      3403 8294 3404 8298 3405 8297 3413 8284
      3415 8272 3413 8267 3409 8264 3407 8264
      3406 8263 3403 8259 3401 8259 3397 8278

$$

CSH
924 
WGUS72 KGSP 051926
FFSGSP

Flash Flood Statement
National Weather Service Greenville-Spartanburg SC
326 PM EDT WED APR 5 2017

GAC105-052000-
/O.CON.KGSP.FF.W.0002.000000T0000Z-170405T2000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Elbert GA-
326 PM EDT WED APR 5 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 400 PM EDT FOR
SOUTHEASTERN ELBERT COUNTY...

At 323 PM EDT, Doppler radar indicated that rain had ended across 
the warned area, but runoff will continue through late afternoon.
Continue to be wary of river and stream rises across the lower Broad 
and Lake Russell basins.  The warning is expected to expire on 
schedule.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Excessive runoff from heavy rainfall may cause flooding of small 
creeks and streams, country roads, as well as farmland, drainages, 
and other low-lying areas.

&&

LAT...LON 3399 8283 3398 8286 3401 8291 3401 8294
      3403 8294 3404 8298 3405 8297 3413 8284
      3415 8272 3413 8267 3409 8264 3407 8264
      3406 8263 3403 8259 3401 8259 3397 8278

$$

CSH

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 5, 8:45 AM EDTSpecial Weather StatementGSPFranklin, Hart30 min
Apr 5, 9:16 AM EDTSpecial Weather StatementGSPFranklin, Hart29 min
Apr 5, 9:18 AM EDTSpecial Weather StatementGSPElbert27 min
Apr 5, 9:48 AM EDTFlash Flood WatchGSPElbert, Franklin, Hart, Stephens16 hr
Apr 5, 11:02 AM EDTSpecial Weather StatementGSPElbert28 min
Apr 5, 11:30 AM EDTAreal Flood AdvisoryGSPElbert2 hr
Apr 5, 11:58 AM EDTSpecial Weather StatementGSPElbert32 min
Apr 5, 12:11 PM EDTSevere Thunderstorm WarningGSPElbert34 min
Apr 5, 12:42 PM EDTSpecial Weather StatementGSPElbert, Franklin, Hart48 min
Apr 5, 1:33 PM EDTSpecial Weather StatementGSPElbert27 min
Apr 5, 3:31 PM EDTWind AdvisoryGSPElbert, Franklin, Habersham, Hart, Rabun, Stephens52 hr

Nearby

Flash Flood Warnings in Georgia, 2017Every flash flood warning in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.