Alert archive / South Carolina / Flash Flood Warnings in 2020

Flash Flood Warning 13, NWS Greenville-Spartanburg, SC

February 6, 2020Hart County, Georgia; Anderson County, Greenville County, Pickens County, South Carolina

NWS Greenville-Spartanburg, SC issued this flash flood warning at Feb 6, 2020, 10:03 AM EST for Hart County, Georgia; Anderson County, Greenville County, Pickens County, South Carolina. It was in force for 9 hr. 1 report 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
Feb 6, 2020, 10:03 AM EST (15:03 UTC)
Expired
Feb 6, 2020, 7:00 PM EST
In force
9 hr
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon
Flood severity
None

Counties Hart County, GA, Anderson County, SC, Greenville County, SC, Pickens County, SC

The radar

The Greer radar (KGSP), 75 km from the middle of the area, began a volume at 15:05 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

TimeReportWhereRemark
Feb 6, 12:00 PM ESTFLASH FLOODHartwell, GAAT LEAST TWO DOZEN ROADS WITH WATER OVER THEM, AT LEAST 5 COMPLETELY SHUT DOWN. TWO HOMES WITH WATER IN THEM, ONE RESIDENT HAD TO BE EVACUATED.

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, 3.1 hours before the alert went out and 194 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 2020-02-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 732 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 2020-02-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 297 square meters per square second.1939587897Sfc1 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
732 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
514 m above ground
0-6 km bulk shear
74 kt
0-1 km storm-relative helicity
297 m²/s²
0-3 km storm-relative helicity
391 m²/s²
Significant tornado parameter
1.7
Supercell composite
5.3

Open this sounding in Storm Lab

The text

As transmitted.

311 
WGUS52 KGSP 061503
FFWGSP
GAC147-SCC007-045-077-062100-
/O.NEW.KGSP.FF.W.0013.200206T1503Z-200206T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Greenville-Spartanburg SC
1003 AM EST Thu Feb 6 2020

The National Weather Service in Greenville-Spartanburg has issued a

* Flash Flood Warning for...
  Hart County in northeastern Georgia...
  South central Greenville County in Upstate South Carolina...
  Anderson County in Upstate South Carolina...
  Southeastern Pickens County in Upstate South Carolina...

* Until 400 PM EST.

* At 1001 AM EST, Doppler radar indicated thunderstorms producing 
  heavy rain moving into the warned area. Up to three inches of rain 
  has already fallen over the past 24 hours and an additional 1-2 
  inches will be possible with the incoming storms. Flash flooding 
  along area streams and low lying areas 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...
  Anderson, Hartwell, Homeland Park, Powdersville, Piedmont, Belton,
  Williamston, Northlake, Honea Path and Pendleton.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, highways, and underpasses. Addditionally, country
roads and farmlands along the banks of creeks, streams, and other
low-lying areas are subject to flooding.

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 3422 8274 3427 8275 3429 8277 3421 8298
      3423 8301 3423 8308 3427 8311 3441 8310
      3449 8305 3447 8300 3461 8286 3466 8283
      3465 8284 3466 8284 3485 8246 3463 8245
      3449 8230 3421 8274

FLASH FLOOD...RADAR INDICATED

$$

KRENTZ
1 follow-up statement
982 
WGUS52 KGSP 062055
FFWGSP
GAC147-SCC007-045-077-070000-
/O.EXT.KGSP.FF.W.0013.000000T0000Z-200207T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Greenville-Spartanburg SC
355 PM EST Thu Feb 6 2020

The National Weather Service in Greenville-Spartanburg has extended
the

* Flash Flood Warning for...
  Hart County in northeastern Georgia...
  South central Greenville County in Upstate South Carolina...
  Anderson County in Upstate South Carolina...
  Southeastern Pickens County in Upstate South Carolina...

* Until 700 PM EST.

* At 353 PM EST, Doppler radar and automated gauges indicated
  thunderstorms producing heavy rain across the warned area. Flash
  flooding is ongoing.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar and automated gauges.

  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...
  Anderson, Hartwell, Homeland Park, Powdersville, Piedmont, Belton,
  Williamston, Northlake, Honea Path and Pendleton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, highways, and underpasses. Addditionally, country
roads and farmlands along the banks of creeks, streams, and other
low-lying areas are subject to flooding.


&&

LAT...LON 3422 8274 3427 8275 3429 8277 3421 8298
      3423 8301 3423 8308 3427 8311 3441 8310
      3449 8305 3447 8300 3461 8286 3466 8283
      3465 8284 3466 8284 3485 8246 3463 8245
      3449 8230 3421 8274

FLASH FLOOD...RADAR AND GAUGE INDICATED

$$

JPT

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 6, 5:30 AM ESTFlash Flood WarningGSPHabersham, Rabun11 hr
Feb 6, 7:40 AM ESTSpecial Weather StatementGSPFranklin35 min
Feb 6, 8:36 AM ESTFlash Flood WarningGSPFranklin, Stephens7 hr
Feb 6, 8:41 AM ESTAreal Flood AdvisoryGSPHart86 min
Feb 6, 10:10 AM ESTTornado WarningGSPElbert, Hart35 min
Feb 6, 11:43 AM ESTAreal Flood AdvisoryGSPElbert5 hr
Feb 6, 11:45 AM ESTAreal Flood AdvisoryGSPElbert5 hr
Feb 6, 1:27 PM ESTFlash Flood WarningGSPElbert8 hr
Feb 6, 3:27 PM ESTFlash Flood WarningGSPFranklin, Stephens3 hr
Feb 6, 4:29 PM ESTFlash Flood WarningGSPHabersham, Rabun3 hr
Feb 6, 5:23 AM ESTSpecial Weather StatementGSPChester37 min
Feb 6, 5:40 AM ESTFlash Flood Warning EmergencyGSPOconee, Pickens14 hr
Feb 6, 5:51 AM ESTSpecial Weather StatementGSPGreenville24 min
Feb 6, 5:59 AM ESTFlash Flood WarningGSPGreenville13 hr
Feb 6, 7:44 AM ESTFlash Flood WarningGSPSpartanburg12 hr
Feb 6, 8:27 AM ESTAreal Flood AdvisoryGSPAnderson101 min
Feb 6, 9:01 AM ESTSevere Thunderstorm WarningGSPGreenville, Spartanburg44 min
Feb 6, 9:15 AM ESTRiver Flood WarningGSPGreenville, Pickens50 hr
Feb 6, 10:24 AM ESTTornado WarningGSPCherokee, Spartanburg20 min
Feb 6, 10:27 AM ESTAreal Flood AdvisoryGSPCherokee, Union, York14 hr
Feb 6, 10:28 AM ESTTornado WarningGSPAnderson17 min
Feb 6, 10:46 AM ESTSevere Thunderstorm WarningGSPCherokee, York59 min
Feb 6, 10:48 AM ESTTornado WarningGSPAnderson, Greenville, Laurens27 min
Feb 6, 11:04 AM ESTFlash Flood Warning EmergencyCatastrophic damage threatGSPPickens12 hr
Feb 6, 11:08 AM ESTTornado WarningGSPAbbeville, Anderson37 min
Feb 6, 11:15 AM ESTTornado WarningGSPGreenville, Laurens, Spartanburg30 min
Feb 6, 11:37 AM ESTTornado WarningGSPLaurens23 min
Feb 6, 11:51 AM ESTRiver Flood AdvisoryGSPCherokee, York12 hr
Feb 6, 11:59 AM ESTTornado WarningGSPLaurens31 min
Feb 6, 12:02 PM ESTSevere Thunderstorm WarningGSPYork43 min
Feb 6, 12:11 PM ESTAreal Flood AdvisoryGSPChester, York3 hr
Feb 6, 12:47 PM ESTSevere Thunderstorm WarningGSPAbbeville, Anderson, Greenwood28 min
Feb 6, 12:59 PM ESTSevere Thunderstorm WarningGSPAbbeville, Anderson, Greenville, Greenwood, Laurens46 min
Feb 6, 1:24 PM ESTTornado WarningGSPAbbeville, Greenwood51 min
Feb 6, 1:38 PM ESTSevere Thunderstorm WarningGSPLaurens37 min
Feb 6, 1:54 PM ESTFlash Flood WarningGSPChester, Laurens, Union, York6 hr
Feb 6, 2:20 PM ESTSevere Thunderstorm WarningGSPChester40 min
Feb 6, 3:10 PM ESTRiver Flood WarningGSPAnderson, Greenville48 hr
Feb 6, 3:11 PM ESTFlash Flood Warning EmergencyCatastrophic damage threatGSPGreenville6 hr
Feb 6, 3:18 PM ESTRiver Flood WarningGSPCherokee, York37 hr
Feb 6, 6:55 PM ESTFlash Flood WarningGSPGreenville2 hr

Nearby

Flash Flood Warnings in South Carolina, 2020Flash Flood Warnings in Georgia, 2020Every 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.