Alert archive / Tennessee / Winter Storm Watches in 2016

Winter Storm Watch 2, NWS Morristown, TN

February 13, 201620 counties in Tennessee; 7 counties in Virginia

NWS Morristown, TN issued this winter storm watch at Feb 13, 2016, 3:27 PM EST for 20 counties in Tennessee; 7 counties in Virginia. It took effect at Feb 14, 2016, 1:00 PM EST. It was in force for .

The area

The counties it named.

The facts

Issued: Feb 13, 2016, 3:27 PM EST (20:27 UTC)
In effect from: Feb 14, 2016, 1:00 PM EST
Expired: Feb 14, 2016, 5:08 AM EST
In force
Issued by: NWS Morristown, TN

All 27 counties

Anderson County, TN, Blount County, TN, Campbell County, TN, Carter County, TN, Claiborne County, TN, Cocke County, TN, Grainger County, TN, Greene County, TN, Hamblen County, TN, Hancock County, TN, Hawkins County, TN, Johnson County, TN, Monroe County, TN, Morgan County, TN, Scott County, TN, Sevier County, TN, Sullivan County, TN, Unicoi County, TN, Union County, TN, Washington County, TN, City of Bristol, VA, City of Norton, VA, Lee County, VA, Russell County, VA, Scott County, VA, Washington County, VA, Wise County, VA

The radar

The Knoxville radar (KMRX), 33 km from the middle of the area, began a volume at 20:28 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

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 8.5 hours before the alert went out and 290 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: 1876 m above ground
0-6 km bulk shear: 91 kt
0-1 km storm-relative helicity: -42 m²/s²
0-3 km storm-relative helicity: -44 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 watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Morristown, TN wrote its last area forecast discussion before this winter storm watch went out at Feb 13, 3:18 PM EST, 9 minutes earlier.

Area forecast discussion, Feb 13, 3:18 PM EST, 9 minutes before

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Hazardous weather outlook, Feb 13, 4:13 AM EST, 11 hours 14 minutes before

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Nearby

Winter Storm Watches in Tennessee, 2016 Winter Storm Watches in Virginia, 2016 Every winter storm watch 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.