Alert archive / Georgia / Freeze Warnings in 2013

Freeze Warning 3, NWS Charleston, SC

March 26, 20135 counties in South Carolina; 8 counties in Georgia

NWS Charleston, SC issued this freeze warning at Mar 26, 2013, 1:34 PM EDT for 5 counties in South Carolina; 8 counties in Georgia. It took effect at Mar 27, 2013, 4:00 AM EDT. It was in force for 5 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: Mar 26, 2013, 1:34 PM EDT (17:34 UTC)
In effect from: Mar 27, 2013, 4:00 AM EDT
Expired: Mar 27, 2013, 9:00 AM EDT
In force: 5 hr
Issued by: NWS Charleston, SC

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

The radar

The Charleston,SC radar (KCLX), 33 km from the middle of the area, began a volume at 17:31 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, 5.6 hours before the alert went out and 134 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: 1334 m above ground
0-6 km bulk shear: 104 kt
0-1 km storm-relative helicity: -41 m²/s²
0-3 km storm-relative helicity: 189 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 Mar 26, 10:18 AM EDT, 3 hours 16 minutes earlier.

Area forecast discussion, Mar 26, 10:18 AM EDT, 3 hours 16 minutes before

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Hazardous weather outlook, Mar 26, 3:37 AM EDT, 9 hours 57 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
Mar 26, 3:42 AM EDT	Freeze Watch	CHS	Allendale, Berkeley, Colleton, Dorchester, Hampton	10 hr
Mar 25, 9:46 PM EDT	River Flood Warning	CHS	Burke, Emanuel, Jenkins	36 hr
Mar 26, 2:04 PM EDT	River Flood Warning	CHS	Evans	3 days

Nearby

Freeze Warnings in Georgia, 2013 Freeze Warnings in South Carolina, 2013 Every freeze warning in 2013

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.