Alert archive / South Carolina / Areal Flood Warnings in 2016

Areal Flood Warning 2, NWS Columbia, SC

September 28, 2016Edgefield County, McCormick County, Saluda County, South Carolina

NWS Columbia, SC issued this areal flood warning at Sep 28, 2016, 2:01 AM EDT for Edgefield County, McCormick County, Saluda County, 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
Sep 28, 2016, 2:01 AM EDT (06:01 UTC)
Expired
Sep 28, 2016, 4:45 AM EDT
In force
3 hr
Issued by
NWS Columbia, SC
Area
Storm-based polygon
Flood severity
None

Counties Edgefield County, SC, McCormick County, SC, Saluda County, SC

The radar

The Columbia radar (KCAE), 82 km from the middle of the area, began a volume at 06:03 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, 6.0 hours before the alert went out and 310 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 2016-09-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1579 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, Greensboro/Hi Pt, NC at 00:00Z on 2016-09-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 90 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
1579 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
824 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
90 m²/s²
0-3 km storm-relative helicity
110 m²/s²
Significant tornado parameter
0.6
Supercell composite
4.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal 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 areal flood warning went out at Sep 27, 10:40 PM EDT, 3 hours 21 minutes earlier.

Area forecast discussion, Sep 27, 10:40 PM EDT, 3 hours 21 minutes before
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Hazardous weather outlook, Sep 27, 4:30 AM EDT, 21 hours 31 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE COLUMBIA SC
430 AM EDT TUE SEP 27 2016

GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041-280830-
LINCOLN-MCDUFFIE-COLUMBIA-RICHMOND-BURKE-LANCASTER-CHESTERFIELD-
MCCORMICK-NEWBERRY-FAIRFIELD-KERSHAW-EDGEFIELD-SALUDA-LEXINGTON-
RICHLAND-LEE-AIKEN-SUMTER-BARNWELL-ORANGEBURG-CALHOUN-CLARENDON-
BAMBERG-
430 AM EDT TUE SEP 27 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE MIDLANDS OF SOUTH CAROLINA
AND THE CENTRAL SAVANNAH RIVER AREA OF GEORGIA.

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

INCREASING MID LEVEL WINDS COMBINED WITH MODERATE INSTABILITY MAY
LEAD TO SOME ORGANIZED THUNDERSTORMS WITH ISOLATED SEVERE STORMS
POSSIBLE WEDNESDAY AFTERNOON AND EVENING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 27, 11:37 PM EDTAreal Flood AdvisoryCAEEdgefield, Saluda3 hr
Sep 28, 2:13 PM EDTSevere Thunderstorm WarningCAEKershaw, Lee, Sumter26 min
Sep 28, 3:47 PM EDTSpecial Weather StatementCAEBamberg28 min
Sep 28, 3:58 PM EDTRiver Flood WarningCAEEdgefield, McCormick31 hr
Sep 28, 4:03 PM EDTSevere Thunderstorm WarningCAEFairfield, Kershaw, Lancaster57 min
Sep 28, 4:45 PM EDTSpecial Weather StatementCAEBarnwell30 min
Sep 28, 5:05 PM EDTSevere Thunderstorm WarningCAEChesterfield55 min
Sep 28, 5:44 PM EDTSpecial Weather StatementCAEKershaw31 min
Sep 28, 6:05 PM EDTSpecial Weather StatementCAEFairfield25 min

Nearby

Areal Flood Warnings in South Carolina, 2016Every areal flood warning in 2016

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.