Alert archive / South Carolina / Lake Wind Advisories in 2014

Lake Wind Advisory 24, NWS Charleston, SC

December 24, 2014Berkeley County, South Carolina

NWS Charleston, SC issued this lake wind advisory at Dec 24, 2014, 6:44 PM EST for Berkeley County, South Carolina. It took effect at Dec 24, 2014, 10:00 PM EST. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued: Dec 24, 2014, 6:44 PM EST (23:44 UTC)
In effect from: Dec 24, 2014, 10:00 PM EST
Expired: Dec 25, 2014, 6:00 AM EST
In force: 8 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 23:47 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, 11.7 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: 859 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 536 m above ground
0-6 km bulk shear: 67 kt
0-1 km storm-relative helicity: 289 m²/s²
0-3 km storm-relative helicity: 373 m²/s²
Significant tornado parameter: 1.7
Supercell composite: 10.9

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 24, 4:20 PM EST, 2 hours 24 minutes earlier.

Area forecast discussion, Dec 24, 4:20 PM EST, 2 hours 24 minutes before

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Hazardous weather outlook, Dec 24, 3:34 PM EST, 3 hours 10 minutes before

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In the hours before

Special weather statement, Dec 24, 2:45 PM EST, 3 hours 59 minutes before

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Local storm report, Dec 24, 2:55 PM EST, 3 hours 49 minutes before

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Special weather statement, Dec 24, 4:01 PM EST, 2 hours 43 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 24, 2:38 AM EST	Coastal Flood Advisory	CHS		9 hr
Dec 24, 2:42 AM EST	Gale Warning	CHS		28 hr
Dec 24, 2:44 AM EST	Wind Advisory	CHS	Berkeley, Colleton, Dorchester	11 hr
Dec 24, 5:23 AM EST	Special Marine Warning	CHS		52 min
Dec 24, 2:45 PM EST	Special Weather Statement	CHS	Beaufort	45 min
Dec 24, 4:01 PM EST	Special Weather Statement	CHS	Berkeley	29 min
Dec 24, 4:52 PM EST	Special Marine Warning	CHS		113 min
Dec 24, 2:11 AM EST	Special Weather Statement	CHS	Jenkins	19 min
Dec 24, 2:22 AM EST	River Flood Warning	CHS	Tattnall, Toombs	7 days
Dec 24, 5:22 AM EST	Special Weather Statement	CHS	Chatham	23 min

Nearby

Lake Wind Advisories in South Carolina, 2014 Every lake wind advisory in 2014

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.