Alert archive / South Carolina / Special Weather Statements in 2011

Special Weather Statement, NWS Charleston, SC

August 26, 2011Beaufort County, Jasper County, South Carolina

NWS Charleston, SC issued this special weather statement at Aug 26, 2011, 6:33 PM EDT for Beaufort County, Jasper County, South Carolina. It was in force for 42 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: Aug 26, 2011, 6:33 PM EDT (22:33 UTC)
Expired: Aug 26, 2011, 7:15 PM EDT
In force: 42 min
Issued by: NWS Charleston, SC

Counties Beaufort County, SC, Jasper County, SC

The radar

The Charleston,SC radar (KCLX), 33 km from the middle of the area, began a volume at 22:35 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

Charleston AFB, SC (KCHS), launched 12:00Z, 10.6 hours before the alert went out and 98 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: 1806 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 547 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: -61 m²/s²
0-3 km storm-relative helicity: -46 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 Aug 26, 5:08 PM EDT, 1 hour 25 minutes earlier.

Area forecast discussion, Aug 26, 5:08 PM EDT, 1 hour 25 minutes before

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Hazardous weather outlook, Aug 26, 6:13 AM EDT, 12 hours 20 minutes before

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In the hours before

Local storm report, Aug 26, 4:25 PM EDT, 2 hours 8 minutes before

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Special weather statement, Aug 26, 4:43 PM EDT, 1 hour 50 minutes before

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Local storm report, Aug 26, 4:56 PM EDT, 1 hour 37 minutes before

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Local storm report, Aug 26, 5:53 PM EDT, 40 minutes before

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Local storm report, Aug 26, 6:14 PM EDT, 19 minutes before

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Special weather statement, Aug 26, 6:33 PM EDT, 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
Aug 26, 6:39 AM EDT	Coastal Flood Advisory	CHS		15 hr
Aug 26, 12:07 PM EDT	Special Weather Statement	CHS	Chatham	53 min
Aug 26, 2:36 PM EDT	Special Weather Statement	CHS	Chatham	24 min
Aug 26, 11:07 AM EDT	Special Weather Statement	CHS	Beaufort, Charleston, Colleton	53 min
Aug 26, 2:56 PM EDT	Areal Flood Advisory	CHS	Berkeley, Charleston, Colleton, Dorchester	94 min
Aug 26, 5:23 PM EDT	Flash Flood Warning	CHS	Berkeley, Charleston	3 hr

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.