Alert archive / Tennessee / Frost Advisories in 2016

Frost Advisory 3, NWS Huntsville, AL

November 10, 2016Franklin County, Lincoln County, Moore County, Tennessee

NWS Huntsville, AL issued this frost advisory at Nov 10, 2016, 2:26 PM CST for Franklin County, Lincoln County, Moore County, Tennessee. It took effect at Nov 11, 2016, 2:00 AM CST. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued: Nov 10, 2016, 2:26 PM CST (20:26 UTC)
In effect from: Nov 11, 2016, 2:00 AM CST
Expired: Nov 11, 2016, 8:00 AM CST
In force: 6 hr
Issued by: NWS Huntsville, AL

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

The radar

The Northeast Alabama radar (KHTX), 38 km from the middle of the area, began a volume at 20:23 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

Nashville Metro, TN (KBNA), launched 12:00Z, 8.4 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 951 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: -16 m²/s²
0-3 km storm-relative helicity: -78 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 Huntsville, AL wrote its last area forecast discussion before this frost advisory went out at Nov 9, 5:11 PM CST, 21 hours 15 minutes earlier.

Area forecast discussion, Nov 9, 5:11 PM CST, 21 hours 15 minutes before

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Nearby

Frost Advisories in Tennessee, 2016 Every frost advisory in 2016

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.