Alert archive / Tennessee / Winter Storm Warnings in 2008

Winter Storm Warning 1, NWS Morristown, TN

January 1, 20087 counties in Tennessee

NWS Morristown, TN issued this winter storm warning at Jan 1, 2008, 3:44 PM EST for 7 counties in Tennessee. It took effect at Jan 1, 2008, 7:00 PM EST. It was in force for 20 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 1, 2008, 3:44 PM EST (20:44 UTC)
In effect from: Jan 1, 2008, 7:00 PM EST
Expired: Jan 2, 2008, 3:15 PM EST
In force: 20 hr
Issued by: NWS Morristown, TN

Counties Blount County, TN, Carter County, TN, Cocke County, TN, Greene County, TN, Johnson County, TN, Sevier County, TN, Unicoi County, TN

The radar

The Knoxville radar (KMRX), 53 km from the middle of the area, began a volume at 20:50 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, 8.7 hours before the alert went out and 264 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: 1194 m above ground
0-6 km bulk shear: 92 kt
0-1 km storm-relative helicity: 92 m²/s²
0-3 km storm-relative helicity: 160 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 1, 3:33 PM EST, 11 minutes earlier.

Area forecast discussion, Jan 1, 3:33 PM EST, 11 minutes before

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Hazardous weather outlook, Jan 1, 4:51 AM EST, 10 hours 53 minutes before

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In the hours before

Special weather statement, Jan 1, 11:21 AM EST, 4 hours 23 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
Dec 31, 11:22 PM EST	Wind Advisory	MRX	Blount, Carter, Cocke, Greene, Johnson, Sevier and 1 more	7 hr
Jan 1, 3:44 PM EST	Snow Advisory	MRX	Carter, Claiborne, Greene, Hancock, Hawkins, Sullivan and 1 more	24 hr

Nearby

Winter Storm Warnings in Tennessee, 2008 Every winter storm warning in 2008

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.