Alert archive / Tennessee / Winter Storm Warnings in 2013

Winter Storm Warning 1, NWS Morristown, TN

January 16, 20138 counties in Tennessee; 7 counties in Virginia

NWS Morristown, TN issued this winter storm warning at Jan 16, 2013, 4:14 PM EST for 8 counties in Tennessee; 7 counties in Virginia. It took effect at Jan 17, 2013, 11:00 AM EST. It was in force for 10 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: Jan 16, 2013, 4:14 PM EST (21:14 UTC)
In effect from: Jan 17, 2013, 11:00 AM EST
Expired: Jan 17, 2013, 9:09 PM EST
In force: 10 hr
Issued by: NWS Morristown, TN

Counties Blount County, TN, Carter County, TN, Cocke County, TN, Greene County, TN, Johnson County, TN, Monroe County, TN, Sevier County, TN, Unicoi 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), 62 km from the middle of the area, began a volume at 21:15 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

Roanoke, VA (KRNK), launched 12:00Z, 9.2 hours before the alert went out and 304 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: 383 m above ground
0-6 km bulk shear: 84 kt
0-1 km storm-relative helicity: 41 m²/s²
0-3 km storm-relative helicity: 74 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 Morristown, TN wrote its last area forecast discussion before this winter storm warning went out at Jan 16, 3:45 PM EST, 29 minutes earlier.

Area forecast discussion, Jan 16, 3:45 PM EST, 29 minutes before

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Hazardous weather outlook, Jan 16, 3:55 PM EST, 19 minutes before

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In the hours before

Local storm report, Jan 16, 2:02 PM EST, 2 hours 12 minutes before

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The office that day

Everything else NWS Morristown, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 15, 10:48 PM EST	Areal Flood Warning	MRX	Hamilton	8 hr
Jan 16, 3:58 AM EST	Areal Flood Warning	MRX	Bledsoe, Bradley, Hamilton, McMinn, Marion, Meigs and 4 more	8 hr
Jan 16, 4:01 AM EST	Areal Flood Warning	MRX	Anderson, Blount, Campbell, Claiborne, Cocke, Grainger and 9 more	8 hr
Jan 16, 4:06 AM EST	Areal Flood Warning	MRX	Carter, Greene, Hancock, Hawkins, Johnson, Sullivan and 2 more	8 hr
Jan 16, 4:14 AM EST	Winter Storm Watch	MRX	Blount, Carter, Cocke, Greene, Johnson, Monroe and 2 more	12 hr
Jan 16, 5:42 AM EST	River Flood Warning	MRX	Grainger, Hancock	40 hr
Jan 16, 10:56 AM EST	River Flood Warning	MRX	Claiborne, Hancock	52 hr
Jan 16, 12:03 PM EST	Areal Flood Advisory	MRX	Anderson, Campbell, Claiborne, Grainger, Knox, Loudon and 6 more	4 hr
Jan 16, 12:06 PM EST	Areal Flood Advisory	MRX	Bledsoe, Hamilton, Marion, Meigs, Rhea, Sequatchie	4 hr
Jan 16, 7:43 AM EST	River Flood Warning	MRX	Russell, Scott	38 hr

Nearby

Winter Storm Warnings in Tennessee, 2013 Winter Storm Warnings in Virginia, 2013 Every winter storm warning in 2013

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.