Alert archive / South Carolina / Special Weather Statements in 2013

Special Weather Statement, NWS Columbia, SC

July 7, 2013Aiken County, South Carolina; Richmond County, Georgia

NWS Columbia, SC issued this special weather statement at Jul 7, 2013, 6:48 PM EDT for Aiken County, South Carolina; Richmond County, Georgia. It was in force for 57 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 7, 2013, 6:48 PM EDT (22:48 UTC)
Expired: Jul 7, 2013, 7:45 PM EDT
In force: 57 min
Issued by: NWS Columbia, SC

Counties Richmond County, GA, Aiken County, SC

The radar

The Columbia radar (KCAE), 89 km from the middle of the area, began a volume at 22:50 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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 10.8 hours before the alert went out and 248 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: 98 J/kg
Mixed-layer CIN: -49 J/kg
Mixed-layer LCL: 552 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 66 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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 7, 5:35 PM EDT, 1 hour 13 minutes earlier.

Area forecast discussion, Jul 7, 5:35 PM EDT, 1 hour 13 minutes before

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Hazardous weather outlook, Jul 7, 6:07 AM EDT, 12 hours 41 minutes before

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In the hours before

Special weather statement, Jul 7, 4:22 PM EDT, 2 hours 26 minutes before

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Special weather statement, Jul 7, 5:13 PM EDT, 1 hour 35 minutes before

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Special weather statement, Jul 7, 5:39 PM EDT, 1 hour 9 minutes before

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Special weather statement, Jul 7, 6:02 PM EDT, 46 minutes before

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Special weather statement, Jul 7, 6:48 PM EDT, 0 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
Jul 7, 4:39 AM EDT	River Flood Warning	CAE	Fairfield, Kershaw, Lancaster	8 days
Jul 7, 8:59 AM EDT	River Flood Warning	CAE	Orangeburg	71 hr
Jul 7, 4:15 PM EDT	Areal Flood Advisory	CAE	Aiken	60 min
Jul 7, 4:22 PM EDT	Special Weather Statement	CAE	Edgefield, Fairfield, Lexington, Newberry, Saluda	53 min
Jul 7, 5:13 PM EDT	Special Weather Statement	CAE	Fairfield, Kershaw, Lancaster	47 min
Jul 7, 6:02 PM EDT	Special Weather Statement	CAE	Kershaw, Lancaster	58 min
Jul 7, 5:39 PM EDT	Special Weather Statement	CAE	Columbia, Richmond	51 min

Nearby

Special Weather Statements in South Carolina, 2013 Special Weather Statements in Georgia, 2013 Every special weather statement in 2013

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.