Alert archive / Georgia / Freeze Warnings in 2007

Freeze Warning 7, NWS Charleston, SC

November 6, 2007Jenkins County, Screven County, Georgia; Allendale County, South Carolina

NWS Charleston, SC issued this freeze warning at Nov 6, 2007, 2:54 PM EST for Jenkins County, Screven County, Georgia; Allendale County, South Carolina. It took effect at Nov 7, 2007, 2:00 AM EST. It was in force for 7 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Nov 6, 2007, 2:54 PM EST (19:54 UTC)
In effect from: Nov 7, 2007, 2:00 AM EST
Expired: Nov 7, 2007, 9:00 AM EST
In force: 7 hr
Issued by: NWS Charleston, SC

Counties Jenkins County, GA, Screven County, GA, Allendale County, SC

The radar

The Charleston,SC radar (KCLX), 60 km from the middle of the area, began a volume at 19:56 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 12:00Z, 7.9 hours before the alert went out and 154 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: 1777 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 115 m²/s²
0-3 km storm-relative helicity: 118 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 freeze warning 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 freeze warning went out at Nov 6, 12:39 PM EST, 2 hours 15 minutes earlier.

Area forecast discussion, Nov 6, 12:39 PM EST, 2 hours 15 minutes before

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Hazardous weather outlook, Nov 6, 10:22 AM EST, 4 hours 32 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 6, 3:43 AM EST	Freeze Watch	CHS	Jenkins, Screven	11 hr
Nov 6, 3:43 AM EST	Lake Wind Advisory	CHS	Berkeley	36 hr

Nearby

Freeze Warnings in Georgia, 2007 Freeze Warnings in South Carolina, 2007 Every freeze warning in 2007

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.