Alert archive / Tennessee / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 253, NWS Morristown, TN
NWS Morristown, TN issued this severe thunderstorm warning at May 26, 1998, 5:11 PM EDT for Claiborne County, Grainger County, Tennessee. It was in force for 59 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
- May 26, 1998, 5:11 PM EDT (21:11 UTC)
- Expired
- May 26, 1998, 6:10 PM EDT
- In force
- 59 min
- Issued by
- NWS Morristown, TN
- Area
- Whole counties
Counties Claiborne County, TN, Grainger 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 |
|---|---|---|---|
| May 26, 5:00 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 12:00Z, 9.2 hours before the alert went out and 272 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
- 366 J/kg
- Mixed-layer CIN
- -127 J/kg
- Mixed-layer LCL
- 952 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 69 m²/s²
- 0-3 km storm-relative helicity
- 110 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
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 May 26, 2:10 PM EDT, 3 hours 1 minute earlier.
Area forecast discussion, May 26, 2:10 PM EDT, 3 hours 1 minute before
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Special weather statement, May 26, 11:58 AM EDT, 5 hours 13 minutes before
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Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 25, 10:01 PM EDT | Severe Thunderstorm Warning | MRX | Fentress | 64 min |
| May 25, 10:15 PM EDT | Severe Thunderstorm Warning | MRX | Hancock, Hawkins | 60 min |
| May 25, 10:50 PM EDT | Severe Thunderstorm Warning | MRX | Morgan | 65 min |
| May 25, 10:58 PM EDT | Severe Thunderstorm Warning | MRX | Sullivan | 62 min |
| May 25, 11:12 PM EDT | Severe Thunderstorm Warning | MRX | Anderson, Campbell, Scott | 63 min |
| May 25, 11:18 PM EDT | Tornado Warning | MRX | Sullivan | 62 min |
| May 25, 11:22 PM EDT | Severe Thunderstorm Warning | MRX | Claiborne, Grainger, Hancock | 63 min |
| May 25, 11:22 PM EDT | Severe Thunderstorm Warning | MRX | Hawkins | 63 min |
| May 25, 11:39 PM EDT | Severe Thunderstorm Warning | MRX | Knox, Union | 61 min |
| May 25, 11:48 PM EDT | Severe Thunderstorm Warning | MRX | Carter, Johnson | 62 min |
| May 25, 11:49 PM EDT | Severe Thunderstorm Warning | MRX | Cumberland | 46 min |
| May 25, 11:53 PM EDT | Flash Flood Warning | MRX | Claiborne | 3 hr |
| May 25, 11:53 PM EDT | Severe Thunderstorm Warning | MRX | Hamilton, Meigs, Rhea | 62 min |
| May 26, 12:23 AM EDT | Flash Flood Warning | MRX | Hancock, Hawkins | 3 hr |
| May 26, 12:32 AM EDT | Severe Thunderstorm Warning | MRX | Greene, Washington | 48 min |
| May 26, 12:32 AM EDT | Severe Thunderstorm Warning | MRX | Sullivan | 48 min |
| May 26, 12:33 AM EDT | Severe Thunderstorm Warning | MRX | Hawkins | 37 min |
| May 26, 12:37 AM EDT | Severe Thunderstorm Warning | MRX | Hamblen | 48 min |
| May 26, 1:01 AM EDT | Severe Thunderstorm Warning | MRX | Carter, Unicoi | 49 min |
| May 26, 1:05 AM EDT | Flash Flood Warning | MRX | Sullivan | 2 hr |
| May 26, 1:21 AM EDT | Severe Thunderstorm Warning | MRX | Monroe | 49 min |
| May 26, 3:57 PM EDT | Severe Thunderstorm Warning | MRX | Roane | 63 min |
| May 26, 4:14 PM EDT | Severe Thunderstorm Warning | MRX | Campbell | 46 min |
| May 26, 4:24 PM EDT | Severe Thunderstorm Warning | MRX | Loudon | 46 min |
| May 26, 4:30 PM EDT | Severe Thunderstorm Warning | MRX | Union | 50 min |
| May 26, 4:36 PM EDT | Severe Thunderstorm Warning | MRX | Knox | 64 min |
| May 26, 4:58 PM EDT | Severe Thunderstorm Warning | MRX | Blount | 67 min |
| May 26, 5:34 PM EDT | Severe Thunderstorm Warning | MRX | Hancock | 31 min |
| May 26, 5:41 PM EDT | Severe Thunderstorm Warning | MRX | Sevier | 29 min |
| May 26, 6:01 PM EDT | Severe Thunderstorm Warning | MRX | Jefferson | 49 min |
| May 26, 6:25 PM EDT | Severe Thunderstorm Warning | MRX | Cocke | 65 min |
| May 25, 10:15 PM EDT | Severe Thunderstorm Warning | MRX | Lee | 60 min |
| May 25, 11:08 PM EDT | Severe Thunderstorm Warning | MRX | Scott | 62 min |
| May 25, 11:35 PM EDT | Severe Thunderstorm Warning | MRX | Washington | 65 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.