Alert archive / South Carolina / Special Weather Statements in 2011

Special Weather Statement, NWS Columbia, SC

September 26, 2011Lee County, South Carolina

NWS Columbia, SC issued this special weather statement at Sep 26, 2011, 4:02 PM EDT for Lee County, South Carolina. It was in force for 43 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: Sep 26, 2011, 4:02 PM EDT (20:02 UTC)
Expired: Sep 26, 2011, 4:45 PM EDT
In force: 43 min
Issued by: NWS Columbia, SC

County Lee County, SC

The radar

The Columbia radar (KCAE), 91 km from the middle of the area, began a volume at 20:05 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, 8.0 hours before the alert went out and 213 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: 8 J/kg
Mixed-layer CIN: -269 J/kg
Mixed-layer LCL: 747 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 61 m²/s²
0-3 km storm-relative helicity: 82 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Sep 26, 2:29 PM EDT, 1 hour 33 minutes earlier.

Area forecast discussion, Sep 26, 2:29 PM EDT, 1 hour 33 minutes before

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Hazardous weather outlook, Sep 26, 7:45 AM EDT, 8 hours 17 minutes before

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In the hours before

Special weather statement, Sep 26, 4:02 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
Sep 25, 8:05 PM EDT	Special Weather Statement	CAE	Clarendon, Lee, Sumter	55 min
Sep 25, 8:35 PM EDT	Flash Flood Warning	CAE	Calhoun, Clarendon, Lee, Sumter	115 min
Sep 26, 3:34 PM EDT	Areal Flood Advisory	CAE	Calhoun, Orangeburg	116 min
Sep 26, 4:36 PM EDT	Special Weather Statement	CAE	Fairfield	39 min
Sep 26, 5:16 PM EDT	Special Weather Statement	CAE	Fairfield	44 min

Nearby

Special Weather Statements in South Carolina, 2011 Every special weather statement in 2011

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.