Alert archive / South Carolina / Flash Flood Warnings in 2015

Flash Flood Warning 24, NWS Columbia, SC

October 4, 20155 counties in South Carolina

NWS Columbia, SC issued this flash flood warning at Oct 4, 2015, 1:40 AM EDT for 5 counties in South Carolina. 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 counties it named.

The facts

Issued
Oct 4, 2015, 1:40 AM EDT (05:40 UTC)
Expired
Oct 4, 2015, 4:30 AM EDT
In force
3 hr
Issued by
NWS Columbia, SC
Area
Storm-based polygon
Flood severity
None

Counties Calhoun County, SC, Clarendon County, SC, Orangeburg County, SC, Richland County, SC, Sumter County, SC

The radar

The Columbia radar (KCAE), 52 km from the middle of the area, began a volume at 05:41 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

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 5.7 hours before the alert went out and 268 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, Greensboro/Hi Pt, NC at 00:00Z on 2015-10-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Greensboro/Hi Pt, NC at 00:00Z on 2015-10-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 428 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
556 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
428 m²/s²
0-3 km storm-relative helicity
468 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The office that day

Everything else NWS Columbia, SC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 3, 8:03 PM EDTAreal Flood AdvisoryCAEAiken, Bamberg, Barnwell, Calhoun, Lexington, Orangeburg and 2 more117 min
Oct 3, 10:00 PM EDTAreal Flood AdvisoryCAEAiken, Bamberg, Barnwell, Calhoun, Clarendon, Edgefield and 9 more3 hr
Oct 3, 10:01 PM EDTRiver Flood WarningCAEOrangeburg11 days
Oct 3, 10:11 PM EDTAreal Flood AdvisoryCAEAiken, Bamberg, Barnwell, Calhoun, Clarendon, Edgefield and 9 more6 hr
Oct 3, 10:55 PM EDTFlash Flood WarningCAECalhoun, Clarendon, Orangeburg, Richland, Sumter3 hr
Oct 4, 1:06 AM EDTFlash Flood WarningCAECalhoun, Lexington, Orangeburg, Richland3 hr
Oct 4, 3:01 AM EDTRiver Flood WarningCAEGreenwood, Newberry, Saluda67 hr
Oct 4, 3:48 AM EDTFlash Flood WarningCAEAiken, Calhoun, Clarendon, Edgefield, Fairfield, Kershaw and 6 more6 hr
Oct 4, 4:45 AM EDTRiver Flood WarningCAENewberry, Union71 hr
Oct 4, 5:09 AM EDTRiver Flood WarningCAEEdgefield, McCormick64 hr
Oct 4, 7:47 AM EDTFlash Flood WarningCAEAiken, Bamberg, Barnwell, Calhoun, Clarendon, Edgefield and 11 more6 hr
Oct 4, 1:40 PM EDTAreal Flood WarningCAEAiken, Calhoun, Clarendon, Fairfield, Kershaw, Lee and 6 more30 hr
Oct 4, 6:54 PM EDTRiver Flood WarningCAEKershaw43 hr

Nearby

Flash Flood Warnings in South Carolina, 2015Every flash 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.