Alert archive / Georgia / Frost Advisories in 2008

Frost Advisory 12, NWS Charleston, SC

November 16, 20084 counties in South Carolina; 6 counties in Georgia

NWS Charleston, SC issued this frost advisory at Nov 16, 2008, 3:05 PM EST for 4 counties in South Carolina; 6 counties in Georgia. It took effect at Nov 17, 2008, 12:00 AM EST. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued: Nov 16, 2008, 3:05 PM EST (20:05 UTC)
In effect from: Nov 17, 2008, 12:00 AM EST
Expired: Nov 17, 2008, 8:58 AM EST
In force: 9 hr
Issued by: NWS Charleston, SC

Counties Bulloch County, GA, Candler County, GA, Effingham County, GA, Evans County, GA, Long County, GA, Tattnall County, GA, Berkeley County, SC, Colleton County, SC, Dorchester County, SC, Hampton County, SC

The radar

The Charleston,SC radar (KCLX), 30 km from the middle of the area, began a volume at 20:10 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

Jacksonville, FL (KJAX), launched 12:00Z, 8.1 hours before the alert went out and 226 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: 952 m above ground
0-6 km bulk shear: 81 kt
0-1 km storm-relative helicity: -62 m²/s²
0-3 km storm-relative helicity: 159 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 frost 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 frost advisory went out at Nov 15, 6:35 PM EST, 20 hours 30 minutes earlier.

Area forecast discussion, Nov 15, 6:35 PM EST, 20 hours 30 minutes before

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Hazardous weather outlook, Nov 15, 4:07 PM EST, 22 hours 58 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
Nov 15, 10:08 PM EST	Freeze Watch	CHS	Berkeley, Colleton, Dorchester, Hampton	17 hr

Nearby

Frost Advisories in Georgia, 2008 Frost Advisories in South Carolina, 2008 Every frost advisory in 2008

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.