Alert archive / South Carolina / Lake Wind Advisories in 2011

Lake Wind Advisory 44, NWS Charleston, SC

December 27, 2011Berkeley County, South Carolina

NWS Charleston, SC issued this lake wind advisory at Dec 27, 2011, 2:21 PM EST for Berkeley County, South Carolina. It was in force for 17 hr.

The area

The counties it named.

The facts

Issued: Dec 27, 2011, 2:21 PM EST (19:21 UTC)
Expired: Dec 28, 2011, 7:00 AM EST
In force: 17 hr
Issued by: NWS Charleston, SC

County Berkeley County, SC

The radar

The Charleston,SC radar (KCLX), 118 km from the middle of the area, began a volume at 19:23 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

Newport, NC (KMHX), launched 12:00Z, 7.4 hours before the alert went out and 333 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 844 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 353 m²/s²
0-3 km storm-relative helicity: 405 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this lake wind advisory 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 lake wind advisory went out at Dec 27, 1:06 PM EST, 1 hour 15 minutes earlier.

Area forecast discussion, Dec 27, 1:06 PM EST, 1 hour 15 minutes before

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Hazardous weather outlook, Dec 27, 1:08 PM EST, 1 hour 13 minutes before

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In the hours before

Special weather statement, Dec 27, 11:09 AM EST, 3 hours 12 minutes before

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Local storm report, Dec 27, 11:38 AM EST, 2 hours 43 minutes before

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Local storm report, Dec 27, 12:14 PM EST, 2 hours 7 minutes before

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Local storm report, Dec 27, 12:19 PM EST, 2 hours 2 minutes before

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Local storm report, Dec 27, 12:22 PM EST, 1 hour 59 minutes before

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Local storm report, Dec 27, 1:35 PM EST, 46 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
Dec 27, 4:48 AM EST	Gale Warning	CHS		26 hr
Dec 27, 10:40 AM EST	Special Marine Warning	CHS		38 min
Dec 27, 4:25 AM EST	Wind Advisory	CHS	Berkeley, Dorchester	10 hr
Dec 27, 6:45 AM EST	Coastal Flood Advisory	CHS		4 hr

Nearby

Lake Wind Advisories in South Carolina, 2011 Every lake wind advisory 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.