Alert archive / Tennessee / High Wind Watches in 2014

High Wind Watch 4, NWS Morristown, TN

October 12, 201410 counties in Tennessee; Russell County, Washington County, City of Bristol, Virginia

NWS Morristown, TN issued this high wind watch at Oct 12, 2014, 3:50 PM EDT for 10 counties in Tennessee; Russell County, Washington County, City of Bristol, Virginia. It took effect at Oct 13, 2014, 8:00 PM EDT. It was in force for .

The area

The counties it named.

The facts

Issued: Oct 12, 2014, 3:50 PM EDT (19:50 UTC)
In effect from: Oct 13, 2014, 8:00 PM EDT
Expired: Oct 13, 2014, 11:34 AM EDT
In force
Issued by: NWS Morristown, TN

Counties Blount County, TN, Carter County, TN, Cocke County, TN, Greene County, TN, Johnson County, TN, McMinn County, TN, Monroe County, TN, Sevier County, TN, Unicoi County, TN, Washington County, TN, City of Bristol, VA, Russell County, VA, Washington County, VA

The radar

The Knoxville radar (KMRX), 47 km from the middle of the area, began a volume at 19:52 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, 7.8 hours before the alert went out and 334 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: 476 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 105 m²/s²
0-3 km storm-relative helicity: 131 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 high wind 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 high wind watch went out at Oct 12, 3:40 PM EDT, 10 minutes earlier.

Area forecast discussion, Oct 12, 3:40 PM EDT, 10 minutes before

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Hazardous weather outlook, Oct 12, 4:15 AM EDT, 11 hours 35 minutes before

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In the hours before

Special weather statement, Oct 12, 3:34 PM EDT, 16 minutes before

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Special weather statement, Oct 12, 3:42 PM EDT, 8 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
Oct 12, 3:42 PM EDT	Special Weather Statement	MRX	Hamilton	48 min
Oct 12, 4:55 PM EDT	Areal Flood Advisory	MRX	Hamilton, Marion, Sequatchie	3 hr
Oct 12, 5:15 PM EDT	Areal Flood Advisory	MRX	Loudon, Monroe	3 hr

Nearby

High Wind Watches in Tennessee, 2014 High Wind Watches in Virginia, 2014 Every high wind watch in 2014

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.