Alert archive / South Carolina / Areal Flood Warnings in 2015

Areal Flood Warning 13, NWS Greenville-Spartanburg, SC

September 25, 2015Greenwood County, South Carolina

NWS Greenville-Spartanburg, SC issued this areal flood warning at Sep 25, 2015, 4:29 AM EDT for Greenwood County, South Carolina. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Sep 25, 2015, 4:29 AM EDT (08:29 UTC)
Expired
Sep 25, 2015, 6:30 AM EDT
In force
2 hr
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon
Flood severity
None

County Greenwood County, SC

The radar

The Greer radar (KGSP), 82 km from the middle of the area, began a volume at 08:29 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

Charleston AFB, SC (KCHS), launched 00:00Z, 8.5 hours before the alert went out and 241 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, Charleston AFB, SC at 00:00Z on 2015-09-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 449 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Charleston AFB, SC at 00:00Z on 2015-09-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 98 square meters per square second.193958Sfc1 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
449 J/kg
Mixed-layer CIN
-13 J/kg
Mixed-layer LCL
655 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
98 m²/s²
0-3 km storm-relative helicity
193 m²/s²
Significant tornado parameter
0.2
Supercell composite
2.5

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 24, 10:10 PM EDTSpecial Weather StatementGSPHenderson, Transylvania110 min
Sep 25, 6:34 PM EDTSpecial Weather StatementGSPAvery, Burke, Caldwell, McDowell, Mitchell, Yancey116 min
Sep 24, 8:20 PM EDTSpecial Weather StatementGSPCherokee, Greenville, Spartanburg115 min
Sep 24, 9:51 PM EDTSpecial Weather StatementGSPAbbeville, Greenwood, Laurens114 min
Sep 24, 11:52 PM EDTAreal Flood AdvisoryGSPGreenwood113 min
Sep 25, 1:30 AM EDTFlash Flood WarningGSPGreenwood3 hr
Sep 25, 3:10 AM EDTAreal Flood AdvisoryGSPAbbeville2 hr
Sep 25, 4:12 AM EDTAreal Flood AdvisoryGSPAnderson2 hr
Sep 25, 7:25 AM EDTSpecial Weather StatementGSPAbbeville50 min

Nearby

Areal Flood Warnings in South Carolina, 2015Every areal flood warning in 2015

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.