Alert archive / Georgia / Frost Advisories in 2018

Frost Advisory 1, NWS Tallahassee, FL

March 7, 201814 counties in Florida; 26 counties in Georgia; 5 counties in Alabama

NWS Tallahassee, FL issued this frost advisory at Mar 7, 2018, 8:04 PM CST for 14 counties in Florida; 26 counties in Georgia; 5 counties in Alabama. It took effect at Mar 8, 2018, 12:00 AM CST. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued: Mar 7, 2018, 8:04 PM CST (02:04 UTC)
In effect from: Mar 8, 2018, 12:00 AM CST
Expired: Mar 8, 2018, 7:00 AM CST
In force: 7 hr
Issued by: NWS Tallahassee, FL

All 45 counties

Coffee County, AL, Dale County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, Bay County, FL, Calhoun County, FL, Dixie County, FL, Gadsden County, FL, Holmes County, FL, Jackson County, FL, Jefferson County, FL, Lafayette County, FL, Leon County, FL, Madison County, FL, Taylor County, FL, Wakulla County, FL, Walton County, FL, Washington County, FL, Baker County, GA, Ben Hill County, GA, Berrien County, GA, Brooks County, GA, Calhoun County, GA, Clay County, GA, Colquitt County, GA, Cook County, GA, Decatur County, GA, Dougherty County, GA, Early County, GA, Grady County, GA, Irwin County, GA, Lanier County, GA, Lee County, GA, Lowndes County, GA, Miller County, GA, Mitchell County, GA, Quitman County, GA, Randolph County, GA, Seminole County, GA, Terrell County, GA, Thomas County, GA, Tift County, GA, Turner County, GA, Worth County, GA

The radar

The Tallahassee radar (KTLH), 71 km from the middle of the area, began a volume at 02:01 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 00:00Z, 2.1 hours before the alert went out and 260 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: 1741 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 49 m²/s²
0-3 km storm-relative helicity: 36 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 Tallahassee, FL wrote its last area forecast discussion before this frost advisory went out at Mar 7, 8:04 PM CST, 0 minutes earlier.

Area forecast discussion, Mar 7, 8:04 PM CST, 0 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
Mar 8, 2:10 AM CST	Rip Current Statement	TAE	Gulf, Walton	22 hr
Mar 8, 7:13 AM CST	Red Flag Warning	TAE	Bay, Dixie, Gadsden, Lafayette, Leon, Wakulla and 2 more	10 hr
Mar 8, 12:40 PM CST	Frost Advisory	TAE	Bay, Calhoun, Dixie, Franklin, Gulf, Jackson and 5 more	19 hr
Mar 8, 12:40 PM CST	Freeze Warning	TAE	Calhoun, Dixie, Gadsden, Holmes, Jackson, Jefferson and 7 more	19 hr

Nearby

Frost Advisories in Georgia, 2018 Frost Advisories in Florida, 2018 Frost Advisories in Alabama, 2018 Every frost advisory in 2018

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.