Alert archive / Georgia / Freezing Rain Advisories in 2014

Freezing Rain Advisory 2, NWS Charleston, SC

February 11, 20144 counties in Georgia

NWS Charleston, SC issued this freezing rain advisory at Feb 11, 2014, 4:34 PM EST for 4 counties in Georgia. It took effect at Feb 12, 2014, 12:00 AM EST. It was in force for 30 hr.

The area

The counties it named.

The facts

Issued: Feb 11, 2014, 4:34 PM EST (21:34 UTC)
In effect from: Feb 12, 2014, 12:00 AM EST
Expired: Feb 13, 2014, 5:49 AM EST
In force: 30 hr
Issued by: NWS Charleston, SC

Counties Effingham County, GA, Evans County, GA, Long County, GA, Tattnall County, GA

The radar

The Charleston,SC radar (KCLX), 93 km from the middle of the area, began a volume at 21:36 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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 9.6 hours before the alert went out and 294 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: 423 m above ground
0-6 km bulk shear: 71 kt
0-1 km storm-relative helicity: 27 m²/s²
0-3 km storm-relative helicity: 322 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 freezing rain 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 freezing rain advisory went out at Feb 11, 1:09 PM EST, 3 hours 25 minutes earlier.

Area forecast discussion, Feb 11, 1:09 PM EST, 3 hours 25 minutes before

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Hazardous weather outlook, Feb 11, 3:56 PM EST, 38 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
Feb 11, 4:21 AM EST	Gale Watch	CHS		12 hr
Feb 11, 3:51 PM EST	Gale Warning	CHS		24 hr

Nearby

Freezing Rain Advisories in Georgia, 2014 Freezing Rain Advisories in South Carolina, 2014 Every freezing rain 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.