Alert archive / South Carolina / Lake Wind Advisories in 2011

Lake Wind Advisory 31, NWS Charleston, SC

October 14, 2011Berkeley County, South Carolina

NWS Charleston, SC issued this lake wind advisory at Oct 14, 2011, 4:06 AM EDT for Berkeley County, South Carolina. It was in force for 13 hr.

The area

The counties it named.

The facts

Issued: Oct 14, 2011, 4:06 AM EDT (08:06 UTC)
Expired: Oct 14, 2011, 5:00 PM EDT
In force: 13 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 08:10 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 00:00Z, 8.1 hours before the alert went out and 33 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: 621 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 743 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 61 m²/s²
0-3 km storm-relative helicity: 9 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.1

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 Oct 14, 4:03 AM EDT, 3 minutes earlier.

Area forecast discussion, Oct 14, 4:03 AM EDT, 3 minutes before

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Hazardous weather outlook, Oct 14, 3:21 AM EDT, 45 minutes before

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In the hours before

Local storm report, Oct 13, 10:14 PM EDT, 5 hours 52 minutes before

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Special weather statement, Oct 13, 10:15 PM EDT, 5 hours 51 minutes before

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Local storm report, Oct 13, 10:30 PM EDT, 5 hours 36 minutes before

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Local storm report, Oct 13, 10:40 PM EDT, 5 hours 26 minutes before

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Special weather statement, Oct 13, 10:56 PM EDT, 5 hours 10 minutes before

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Local storm report, Oct 14, 1:27 AM EDT, 2 hours 39 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
Oct 13, 8:33 PM EDT	Severe Thunderstorm Warning	CHS	Bryan, Chatham, Effingham, Liberty, Long, McIntosh	57 min
Oct 13, 8:43 PM EDT	Special Marine Warning	CHS		2 hr
Oct 13, 9:01 PM EDT	Special Marine Warning	CHS		119 min
Oct 13, 10:45 PM EDT	Special Marine Warning	CHS		60 min
Oct 13, 10:58 PM EDT	Special Marine Warning	CHS		92 min
Oct 13, 11:14 PM EDT	Special Marine Warning	CHS		33 min
Oct 13, 8:21 PM EDT	Severe Thunderstorm Warning	CHS	Beaufort, Colleton, Dorchester, Jasper	54 min
Oct 13, 9:15 PM EDT	Severe Thunderstorm Warning	CHS	Beaufort, Berkeley, Charleston, Colleton, Dorchester	60 min
Oct 13, 10:15 PM EDT	Special Weather Statement	CHS	Charleston	45 min
Oct 13, 10:56 PM EDT	Special Weather Statement	CHS	Charleston	49 min

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.