Alert archive / South Carolina / Flash Flood Warnings in 2008

Flash Flood Warning 5, NWS Columbia, SC

August 26, 2008Kershaw County, Lancaster County, South Carolina

NWS Columbia, SC issued this flash flood warning at Aug 26, 2008, 12:09 PM EDT for Kershaw County, Lancaster County, South Carolina. It was in force for 51 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 26, 2008, 12:09 PM EDT (16:09 UTC)
Expired: Aug 26, 2008, 1:00 PM EDT
In force: 51 min
Issued by: NWS Columbia, SC
Area: Storm-based polygon
Flood severity: None

Counties Kershaw County, SC, Lancaster County, SC

The radar

The Columbia radar (KCAE), 76 km from the middle of the area, began a volume at 16:13 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 12:00Z, 4.2 hours before the alert went out and 187 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 378 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 608 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 24 m²/s²
0-3 km storm-relative helicity: 72 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Columbia, SC wrote its last area forecast discussion before this flash flood warning went out at Aug 26, 10:29 AM EDT, 1 hour 40 minutes earlier.

Area forecast discussion, Aug 26, 10:29 AM EDT, 1 hour 40 minutes before

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Hazardous weather outlook, Aug 26, 10:16 AM EDT, 1 hour 53 minutes before

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In the hours before

Local storm report, Aug 26, 10:29 AM EDT, 1 hour 40 minutes before

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Local storm report, Aug 26, 11:59 AM EDT, 10 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 26, 9:30 AM EDT	Flash Flood Warning	CAE	Lancaster	2 hr
Aug 26, 10:00 AM EDT	Areal Flood Advisory	CAE	Chesterfield	2 hr
Aug 26, 11:52 AM EDT	Tornado Warning	CAE	Kershaw, Lancaster	38 min
Aug 26, 12:34 PM EDT	Flash Flood Warning	CAE	Fairfield	42 min
Aug 26, 1:35 PM EDT	Tornado Warning	CAE	Lancaster	40 min
Aug 26, 2:48 PM EDT	Tornado Warning	CAE	Lancaster	27 min
Aug 26, 2:50 PM EDT	Areal Flood Advisory	CAE	Lancaster	115 min
Aug 26, 3:46 PM EDT	Flash Flood Warning	CAE	Fairfield, Kershaw, Lancaster	119 min
Aug 26, 6:28 PM EDT	Tornado Warning	CAE	Fairfield	47 min
Aug 26, 6:57 PM EDT	Areal Flood Advisory	CAE	Fairfield, Lexington, Newberry, Richland, Saluda	108 min
Aug 26, 7:07 PM EDT	Severe Thunderstorm Warning	CAE	Newberry, Saluda	53 min
Aug 26, 7:12 PM EDT	Severe Thunderstorm Warning	CAE	Aiken, Barnwell, Lexington, Orangeburg	48 min
Aug 26, 7:56 PM EDT	Severe Thunderstorm Warning	CAE	Lexington, Richland	49 min
Aug 26, 7:59 PM EDT	Flash Flood Warning	CAE	Calhoun, Fairfield, Lexington, Newberry, Richland	2 hr

Nearby

Flash Flood Warnings in South Carolina, 2008 Every flash flood warning in 2008

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.