Alert archive / Tennessee / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 344, NWS Morristown, TN

June 14, 1998Bradley County, Polk County, Tennessee

NWS Morristown, TN issued this severe thunderstorm warning at Jun 14, 1998, 5:50 PM EDT for Bradley County, Polk County, Tennessee. It was in force for 45 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: Jun 14, 1998, 5:50 PM EDT (21:50 UTC)
Expired: Jun 14, 1998, 6:35 PM EDT
In force: 45 min
Issued by: NWS Morristown, TN
Area: Whole counties

Counties Bradley County, TN, Polk County, TN

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 9.8 hours before the alert went out and 205 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: 6 J/kg
Mixed-layer CIN: -256 J/kg
Mixed-layer LCL: 813 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 254 m²/s²
0-3 km storm-relative helicity: 350 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 Jun 14, 2:40 PM EDT, 3 hours 10 minutes earlier.

Area forecast discussion, Jun 14, 2:40 PM EDT, 3 hours 10 minutes before

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In the hours before

Local storm report, Jun 14, 2:20 PM EDT, 3 hours 30 minutes before

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Local storm report, Jun 14, 3:35 PM EDT, 2 hours 15 minutes before

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Special weather statement, Jun 14, 5:01 PM EDT, 49 minutes before

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Special weather statement, Jun 14, 5:01 PM EDT, 49 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
Jun 14, 12:39 PM EDT	Severe Thunderstorm Warning	MRX	Fentress	61 min
Jun 14, 12:58 PM EDT	Severe Thunderstorm Warning	MRX	Cumberland, Morgan	62 min
Jun 14, 1:34 PM EDT	Severe Thunderstorm Warning	MRX	Scott	51 min
Jun 14, 1:44 PM EDT	Severe Thunderstorm Warning	MRX	Meigs, Rhea, Roane	61 min
Jun 14, 1:44 PM EDT	Severe Thunderstorm Warning	MRX	Anderson	61 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 1998 Every severe thunderstorm warning in 1998

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.