Alert archive / South Carolina / Special Weather Statements in 2017

Special Weather Statement, NWS Columbia, SC

July 10, 2017Richland County, South Carolina

NWS Columbia, SC issued this special weather statement at Jul 10, 2017, 4:24 PM EDT for Richland 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 outline as issued.

The facts

Issued
Jul 10, 2017, 4:24 PM EDT (20:24 UTC)
Expired
Jul 10, 2017, 5:15 PM EDT
In force
51 min
Issued by
NWS Columbia, SC

County Richland County, SC

The radar

The Columbia radar (KCAE), 21 km from the middle of the area, began a volume at 20:25 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, 8.4 hours before the alert went out and 250 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 12:00Z on 2017-07-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 18 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 12:00Z on 2017-07-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 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
18 J/kg
Mixed-layer CIN
-60 J/kg
Mixed-layer LCL
1335 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
89 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jul 10, 1:53 PM EDT, 2 hours 31 minutes earlier.

Area forecast discussion, Jul 10, 1:53 PM EDT, 2 hours 31 minutes before
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Hazardous weather outlook, Jul 10, 4:51 AM EDT, 11 hours 33 minutes before
Hazardous Weather Outlook
National Weather Service Columbia SC
451 AM EDT Mon Jul 10 2017

GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041-110900-
Lincoln-McDuffie-Columbia-Richmond-Burke-Lancaster-Chesterfield-
McCormick-Newberry-Fairfield-Kershaw-Edgefield-Saluda-Lexington-
Richland-Lee-Aiken-Sumter-Barnwell-Orangeburg-Calhoun-Clarendon-
Bamberg-
451 AM EDT Mon Jul 10 2017

This Hazardous Weather Outlook is for the Midlands of South Carolina
and the Central Savannah River area of Georgia.

.DAY ONE...Today and Tonight.

Scattered to numerous showers and thunderstorms are expected this
afternoon and evening with the potential for an isolated
thunderstorm to reach severe limits. The main threat of severe
weather will be damaging wind gusts. Locally heavy rainfall will also
be possible.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, Jul 10, 2:11 PM EDT, 2 hours 13 minutes before
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Special weather statement, Jul 10, 4:24 PM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 10, 2:11 PM EDTSpecial Weather StatementCAELee34 min
Jul 10, 3:15 PM EDTSevere Thunderstorm WarningCAEKershaw45 min
Jul 10, 4:43 PM EDTAreal Flood AdvisoryCAELee2 hr
Jul 10, 4:47 PM EDTAreal Flood AdvisoryCAERichland118 min
Jul 10, 5:28 PM EDTAreal Flood AdvisoryCAEAiken62 min
Jul 10, 7:08 PM EDTSpecial Weather StatementCAEClarendon22 min
Jul 10, 5:32 PM EDTSpecial Weather StatementCAERichmond43 min
Jul 10, 7:52 PM EDTSevere Thunderstorm WarningCAEBurke, Richmond38 min

Nearby

Special Weather Statements in South Carolina, 2017Every special weather statement in 2017

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.