Alert archive / Tennessee / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 70, NWS Morristown, TN
NWS Morristown, TN issued this severe thunderstorm warning at Apr 8, 1998, 8:36 PM CDT for Fentress County, Tennessee. It was in force for 69 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
- Apr 8, 1998, 8:36 PM CDT (01:36 UTC)
- Expired
- Apr 8, 1998, 9:45 PM CDT
- In force
- 69 min
- Issued by
- NWS Morristown, TN
- Area
- Whole counties
County Fentress 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 |
|---|---|---|---|
| Apr 8, 6:30 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 00:00Z, 1.6 hours before the alert went out and 152 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
- 1032 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 1081 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- 223 m²/s²
- 0-3 km storm-relative helicity
- 297 m²/s²
- Significant tornado parameter
- 1.5
- Supercell composite
- 8.2
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 Apr 8, 7:05 PM CDT, 1 hour 31 minutes earlier.
Area forecast discussion, Apr 8, 7:05 PM CDT, 1 hour 31 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN 805 PM EDT WED APR 8 1998 NOTHING GOING ON IN E TN..YET. STRONG TO SVR ACTIVITY WL BE MOVING INTO MY CWA NEXT CPL OF HRS. RECENTLY UPDATED ZFP LOOKS FINE. HSA
In the hours before
Local storm report, Apr 8, 3:45 PM CDT, 4 hours 51 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN
445 PM EDT WED APR 8 1998
TIME(EDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
250 PM DEER LODGE TN 0.75 INCH HAIL
04/08/98 MORGAN
325 PM HARROGATE TN 0.75 INCH HAIL
04/08/98 CLAIBORNEThe office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 8, 8:56 PM CDT | Tornado Warning | MRX | Hamilton, Meigs, Rhea | 64 min |
| Apr 8, 9:02 PM CDT | Severe Thunderstorm Warning | MRX | Knox | 43 min |
| Apr 8, 9:10 PM CDT | Severe Thunderstorm Warning | MRX | Loudon, Roane | 65 min |
| Apr 8, 9:13 PM CDT | Severe Thunderstorm Warning | MRX | Grainger, Hamblen, Jefferson | 62 min |
| Apr 8, 9:14 PM CDT | Tornado Warning | MRX | Polk | 61 min |
| Apr 8, 9:15 PM CDT | Tornado Warning | MRX | Anderson | 30 min |
| Apr 8, 9:18 PM CDT | Severe Thunderstorm Warning | MRX | McMinn, Monroe | 57 min |
| Apr 8, 9:30 PM CDT | Tornado Warning | MRX | McMinn, Monroe | 60 min |
| Apr 8, 9:45 PM CDT | Tornado Warning | MRX | Blount, Loudon | 45 min |
| Apr 8, 10:42 PM CDT | Severe Thunderstorm Warning | MRX | Rhea | 63 min |
| Apr 8, 11:12 PM CDT | Severe Thunderstorm Warning | MRX | Meigs | 48 min |
| Apr 8, 11:23 PM CDT | Severe Thunderstorm Warning | MRX | Loudon, Roane | 52 min |
| Apr 9, 1:44 AM CDT | Severe Thunderstorm Warning | MRX | Knox | 46 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.