Alert archive / Tennessee / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 412, NWS Morristown, TN
NWS Morristown, TN issued this severe thunderstorm warning at Jun 30, 1998, 2:37 PM EDT for Claiborne County, Tennessee. It was in force for 33 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 30, 1998, 2:37 PM EDT (18:37 UTC)
- Expired
- Jun 30, 1998, 3:10 PM EDT
- In force
- 33 min
- Issued by
- NWS Morristown, TN
- Area
- Whole counties
County Claiborne County, TN
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 12:00Z, 6.6 hours before the alert went out and 266 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.
- Mixed-layer CAPE
- 14 J/kg
- Mixed-layer CIN
- -443 J/kg
- Mixed-layer LCL
- 1330 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 75 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 30, 10:00 AM EDT, 4 hours 37 minutes earlier.
Area forecast discussion, Jun 30, 10:00 AM EDT, 4 hours 37 minutes before
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</html>The office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 12:20 AM EDT | Severe Thunderstorm Warning | MRX | Claiborne | 65 min |
| Jun 30, 6:31 AM EDT | Severe Thunderstorm Warning | MRX | Meigs, Rhea | 49 min |
| Jun 30, 3:26 PM EDT | Severe Thunderstorm Warning | MRX | Fentress | 34 min |
| Jun 30, 3:30 PM EDT | Severe Thunderstorm Warning | MRX | Greene | 50 min |
| Jun 30, 3:41 PM EDT | Severe Thunderstorm Warning | MRX | Morgan | 34 min |
| Jun 30, 3:58 PM EDT | Severe Thunderstorm Warning | MRX | Cocke | 32 min |
| Jun 30, 4:13 PM EDT | Severe Thunderstorm Warning | MRX | Anderson | 47 min |
| Jun 30, 4:40 PM EDT | Severe Thunderstorm Warning | MRX | Hamilton | 45 min |
| Jun 30, 4:52 PM EDT | Severe Thunderstorm Warning | MRX | Knox | 33 min |
| Jun 30, 4:57 PM EDT | Severe Thunderstorm Warning | MRX | Grainger | 33 min |
| Jun 30, 5:55 PM EDT | Severe Thunderstorm Warning | MRX | Cocke | 35 min |
| Jun 30, 6:02 PM EDT | Severe Thunderstorm Warning | MRX | Carter, Johnson, Sullivan | 33 min |
| Jun 30, 7:47 PM EDT | Severe Thunderstorm Warning | MRX | Cocke | 33 min |
Nearby
Severe Thunderstorm Warnings in Tennessee, 1998Every 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.