Alert archive / Tennessee / Freeze Warnings in 2017

Freeze Warning 1, NWS Huntsville, AL

March 10, 2017Franklin County, Lincoln County, Moore County, Tennessee

NWS Huntsville, AL issued this freeze warning at Mar 10, 2017, 2:43 PM CST for Franklin County, Lincoln County, Moore County, Tennessee. It took effect at Mar 11, 2017, 3:00 AM CST. It was in force for 4 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 10, 2017, 2:43 PM CST (20:43 UTC)
In effect from: Mar 11, 2017, 3:00 AM CST
Expired: Mar 11, 2017, 7:00 AM CST
In force: 4 hr
Issued by: NWS Huntsville, AL

Counties Franklin County, TN, Lincoln County, TN, Moore County, TN

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 8.7 hours before the alert went out and 107 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: 20 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 667 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 24 m²/s²
0-3 km storm-relative helicity: 112 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 Huntsville, AL wrote its last area forecast discussion before this freeze warning went out at Mar 10, 11:15 AM CST, 3 hours 28 minutes earlier.

Area forecast discussion, Mar 10, 11:15 AM CST, 3 hours 28 minutes before

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Hazardous weather outlook, Mar 10, 1:58 PM CST, 45 minutes before

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In the hours before

Local storm report, Mar 10, 10:54 AM CST, 3 hours 49 minutes before

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The office that day

Everything else NWS Huntsville, AL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 9, 8:26 PM CST	Special Weather Statement	HUN	Lawrence	34 min
Mar 9, 11:11 PM CST	Special Weather Statement	HUN	Colbert	34 min
Mar 9, 11:33 PM CST	Special Weather Statement	HUN	Limestone	27 min
Mar 9, 11:43 PM CST	Special Weather Statement	HUN	Franklin	32 min
Mar 9, 11:50 PM CST	Severe Thunderstorm Warning	HUN	Colbert, Lauderdale, Lawrence, Limestone, Madison	55 min
Mar 9, 11:55 PM CST	Severe Thunderstorm Warning	HUN	Jackson, Madison	65 min
Mar 10, 12:27 AM CST	Severe Thunderstorm Warning	HUN	DeKalb, Jackson	49 min
Mar 10, 12:34 AM CST	Special Weather Statement	HUN	Morgan	26 min
Mar 10, 12:45 AM CST	Severe Thunderstorm Warning	HUN	Madison, Marshall, Morgan	30 min
Mar 10, 12:47 AM CST	Severe Thunderstorm Warning	HUN	Cullman, Morgan	58 min
Mar 10, 12:52 AM CST	Special Weather Statement	HUN	Lawrence	23 min
Mar 10, 1:14 AM CST	Severe Thunderstorm Warning	HUN	Cullman, DeKalb, Jackson, Marshall, Morgan	36 min
Mar 10, 1:34 AM CST	Special Weather Statement	HUN	Cullman	11 min
Mar 10, 1:41 AM CST	Special Weather Statement	HUN	Cullman	34 min
Mar 10, 1:55 AM CST	Special Weather Statement	HUN	Cullman	35 min
Mar 10, 2:43 PM CST	Frost Advisory	HUN	Colbert, Cullman, DeKalb, Franklin, Jackson, Lauderdale and 5 more	16 hr
Mar 9, 10:11 PM CST	Special Weather Statement	HUN	Moore	34 min
Mar 9, 11:30 PM CST	Severe Thunderstorm Warning	HUN	Lincoln, Moore	47 min

Nearby

Freeze Warnings in Tennessee, 2017 Every freeze warning in 2017

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.