Alert archive / South Carolina / Special Weather Statements in 2011

Special Weather Statement, NWS Charleston, SC

November 28, 2011Colleton County, Dorchester County, South Carolina

NWS Charleston, SC issued this special weather statement at Nov 28, 2011, 5:49 PM EST for Colleton County, Dorchester County, South Carolina. It was in force for 56 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: Nov 28, 2011, 5:49 PM EST (22:49 UTC)
Expired: Nov 28, 2011, 6:45 PM EST
In force: 56 min
Issued by: NWS Charleston, SC

Counties Colleton County, SC, Dorchester County, SC

The radar

The Charleston,SC radar (KCLX), 57 km from the middle of the area, began a volume at 22:48 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, 10.8 hours before the alert went out and 378 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: 64 J/kg
Mixed-layer CIN: -42 J/kg
Mixed-layer LCL: 700 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 178 m²/s²
0-3 km storm-relative helicity: 201 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 Charleston, SC wrote its last area forecast discussion before this special weather statement went out at Nov 28, 3:42 PM EST, 2 hours 7 minutes earlier.

Area forecast discussion, Nov 28, 3:42 PM EST, 2 hours 7 minutes before

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Hazardous weather outlook, Nov 28, 3:42 PM EST, 2 hours 7 minutes before

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In the hours before

Special weather statement, Nov 28, 4:09 PM EST, 1 hour 40 minutes before

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Special weather statement, Nov 28, 4:21 PM EST, 1 hour 28 minutes before

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Special weather statement, Nov 28, 4:39 PM EST, 1 hour 10 minutes before

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Special weather statement, Nov 28, 5:49 PM EST, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 28, 5:43 PM EST	Special Marine Warning	CHS		2 hr
Nov 28, 4:09 PM EST	Special Weather Statement	CHS	Allendale	36 min
Nov 28, 4:39 PM EST	Special Weather Statement	CHS	Beaufort, Colleton, Hampton, Jasper	51 min
Nov 28, 6:46 PM EST	Special Weather Statement	CHS	Berkeley, Charleston	89 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.