Alert archive / South Carolina / Flood Watches in 2015

Flood Watch 1, NWS Columbia, SC

November 2, 20157 counties in South Carolina; Lincoln County, Georgia

NWS Columbia, SC issued this flood watch at Nov 2, 2015, 10:41 AM EST for 7 counties in South Carolina; Lincoln County, Georgia. It was in force for 11 hr.

The area

The counties it named.

The facts

Issued
Nov 2, 2015, 10:41 AM EST (15:41 UTC)
Expired
Nov 2, 2015, 9:59 PM EST
In force
11 hr
Issued by
NWS Columbia, SC
Flood severity
None

Counties Lincoln County, GA, Chesterfield County, SC, Edgefield County, SC, Fairfield County, SC, Kershaw County, SC, McCormick County, SC, Newberry County, SC, Saluda County, SC

The radar

The Columbia radar (KCAE), 40 km from the middle of the area, began a volume at 15:43 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 12:00Z, 3.7 hours before the alert went out and 195 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 12:00Z on 2015-11-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 140 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 12:00Z on 2015-11-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 108 square meters per square second.19395878Sfc1 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
140 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
666 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
108 m²/s²
0-3 km storm-relative helicity
143 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
Nov 2, 4:25 AM ESTDense Fog AdvisoryCAEAiken, Bamberg, Barnwell, Calhoun, Clarendon, Edgefield and 4 more6 hr
Nov 2, 9:56 AM ESTRiver Flood WarningCAENewberry, Union3 days
Nov 2, 9:56 AM ESTRiver Flood WarningCAECalhoun, Lexington, Newberry, Richland, Union13 days
Nov 2, 11:26 AM ESTRiver Flood AdvisoryCAELexington, Richland48 hr
Nov 2, 11:57 AM ESTAreal Flood AdvisoryCAEEdgefield, Fairfield, Kershaw, Lancaster, McCormick, Newberry and 1 more5 hr
Nov 2, 12:57 PM ESTRiver Flood WarningCAEGreenwood, Newberry, Saluda70 hr
Nov 2, 2:42 PM ESTRiver Flood WarningCAEChesterfield, Marlboro4 days
Nov 2, 3:35 PM ESTRiver Flood WarningCAELexington, Richland3 days
Nov 2, 4:38 PM ESTAreal Flood AdvisoryCAEChesterfield, Fairfield, Kershaw, Lancaster, Newberry, Saluda3 hr

Nearby

Flood Watches in South Carolina, 2015Flood Watches in Georgia, 2015Every flood watch 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.