Alert archive / Georgia / Winter Storm Warnings in 2010

Winter Storm Warning 1, NWS Tallahassee, FL

February 11, 2010Holmes County, Jackson County, Walton County, Florida; 18 counties in Georgia; 5 counties in Alabama

NWS Tallahassee, FL issued this winter storm warning at Feb 11, 2010, 2:46 PM CST for Holmes County, Jackson County, Walton County, Florida; 18 counties in Georgia; 5 counties in Alabama. It took effect at Feb 12, 2010, 3:00 AM CST. It was in force for 14 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: Feb 11, 2010, 2:46 PM CST (20:46 UTC)
In effect from: Feb 12, 2010, 3:00 AM CST
Expired: Feb 12, 2010, 5:25 PM CST
In force: 14 hr
Issued by: NWS Tallahassee, FL

All 26 counties

Coffee County, AL, Dale County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, Holmes County, FL, Jackson County, FL, Walton County, FL, Baker County, GA, Ben Hill County, GA, Calhoun County, GA, Clay County, GA, Decatur County, GA, Dougherty County, GA, Early County, GA, Irwin County, GA, Lee County, GA, Miller County, GA, Mitchell County, GA, Quitman County, GA, Randolph County, GA, Seminole County, GA, Terrell County, GA, Tift County, GA, Turner County, GA, Worth County, GA

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.8 hours before the alert went out and 223 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: 1047 m above ground
0-6 km bulk shear: 71 kt
0-1 km storm-relative helicity: -74 m²/s²
0-3 km storm-relative helicity: 12 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 winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tallahassee, FL wrote its last area forecast discussion before this winter storm warning went out at Feb 11, 9:11 AM CST, 5 hours 35 minutes earlier.

Area forecast discussion, Feb 11, 9:11 AM CST, 5 hours 35 minutes before

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Hazardous weather outlook, Feb 11, 5:00 AM CST, 9 hours 46 minutes before

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The office that day

Everything else NWS Tallahassee, FL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 11, 2:46 PM CST	Winter Weather Advisory	TAE	Holmes, Jackson, Walton, Washington	29 hr

Nearby

Winter Storm Warnings in Georgia, 2010 Winter Storm Warnings in Alabama, 2010 Winter Storm Warnings in Florida, 2010 Every winter storm warning in 2010

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.