Alert archive / Tennessee / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 105, NWS Morristown, TN

August 13, 2019Blount County, McMinn County, Monroe County, Tennessee; Cherokee County, North Carolina

NWS Morristown, TN issued this severe thunderstorm warning at Aug 13, 2019, 8:03 PM EDT for Blount County, McMinn County, Monroe County, Tennessee; Cherokee County, North Carolina. It was in force for 57 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 13, 2019, 8:03 PM EDT (00:03 UTC)
Expired: Aug 13, 2019, 9:00 PM EDT
In force: 57 min
Issued by: NWS Morristown, TN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Cherokee County, NC, Blount County, TN, McMinn County, TN, Monroe County, TN

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Aug 13, 3:49 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 0.1 hours before the alert went out and 229 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: 348 J/kg
Mixed-layer CIN: -182 J/kg
Mixed-layer LCL: 1234 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 8 m²/s²
0-3 km storm-relative helicity: 31 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 severe thunderstorm 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 severe thunderstorm warning went out at Aug 13, 7:36 PM EDT, 27 minutes earlier.

Area forecast discussion, Aug 13, 7:36 PM EDT, 27 minutes before

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Hazardous weather outlook, Aug 13, 4:12 PM EDT, 3 hours 51 minutes before

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In the hours before

Special weather statement, Aug 13, 6:40 PM EDT, 1 hour 23 minutes before

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Special weather statement, Aug 13, 7:00 PM EDT, 1 hour 3 minutes before

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Special weather statement, Aug 13, 7:17 PM EDT, 46 minutes before

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Special weather statement, Aug 13, 7:18 PM EDT, 45 minutes before

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Special weather statement, Aug 13, 7:23 PM EDT, 40 minutes before

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Special weather statement, Aug 13, 7:32 PM EDT, 31 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
Aug 13, 8:23 PM EDT	Special Weather Statement	MRX	Cherokee	67 min
Aug 13, 9:15 PM EDT	Special Weather Statement	MRX	Clay	45 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2019 Severe Thunderstorm Warnings in North Carolina, 2019 Every severe thunderstorm warning in 2019

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.