Alert archive / Tennessee / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 5, NWS Morristown, TN
NWS Morristown, TN issued this severe thunderstorm warning at May 1, 1990, 2:40 PM EDT for Claiborne County, Grainger County, Tennessee. It was in force for 65 min.
The area
The counties it named.
The facts
- Issued
- May 1, 1990, 2:40 PM EDT (18:40 UTC)
- Expired
- May 1, 1990, 3:45 PM EDT
- In force
- 65 min
- Issued by
- NWS Morristown, TN
- Area
- Whole counties
Counties Claiborne County, TN, Grainger County, TN
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Huntington/Tri S, WV (KHTS), launched 12:00Z, 6.7 hours before the alert went out and 241 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 704 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 56 m²/s²
- 0-3 km storm-relative helicity
- 41 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.
In the hours before
Special weather statement, May 1, 1:35 PM EDT, 1 hour 5 minutes before
TNZ002-TNZ004-011830- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE KNOXVILLE TN 133 PM EDT TUE MAY 1 1990 AT 1:25 PM EDT/12:25 PM EDT A LINE OF THUNDERSTORMS WAS LOCATED FROM 15 MILES WEST OF COOKEVILLE TO JELLICO. THE HEAVIEST THUNDERSTORMS IN THIS LINE WERE LOCATED IN THE SOUTHWEST CORNER OF FENTRESS COUNTY AND 10 MILES SOUTH OF ONEIDA. THESE THUNDERSTORMS ARE MOVING RAPIDLY EAST AT 40 MPH. PERSONS IN FENTRESS AND CAMPBELL COUNTIES SHOULD BE ALERT FOR THE POSSIBILITY OF DANGEROUS LIGHTNING, SMALL HAIL AND GUSTY WINDS AS THESE STORMS MOVE THROUGH THESE COUNTIES DURING THE NEXT HOUR.
Special weather statement, May 1, 1:41 PM EDT, 59 minutes before
TNZ002-TNZ004-011830- SPECIAL WEATHER STATEMENT CORRECTED NATIONAL WEATHER SERVICE KNOXVILLE TN 133 PM EDT TUE MAY 1 1990 AT 1:25 PM EDT/12:25 PM CDT A LINE OF THUNDERSTORMS WAS LOCATED FROM 15 MILES WEST OF COOKEVILLE TO JELLICO. THE HEAVIEST THUNDERSTORMS IN THIS LINE WERE LOCATED IN THE SOUTHWEST CORNER OF FENTRESS COUNTY AND 10 MILES SOUTH OF ONEIDA. THESE THUNDERSTORMS ARE MOVING RAPIDLY EAST AT 40 MPH. PERSONS IN FENTRESS AND CAMPBELL COUNTIES SHOULD BE ALERT FOR THE POSSIBILITY OF DANGEROUS LIGHTNING, SMALL HAIL AND GUSTY WINDS AS THESE STORMS MOVE THROUGH THESE COUNTIES DURING THE NEXT HOUR.
The office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 1, 3:25 PM EDT | Severe Thunderstorm Warning | MRX | Greene, Hawkins | 65 min |
| May 1, 3:47 PM EDT | Severe Thunderstorm Warning | MRX | Sullivan | 58 min |
| May 1, 4:37 PM EDT | Severe Thunderstorm Warning | MRX | Unicoi, Washington | 53 min |
| May 1, 5:06 PM EDT | Severe Thunderstorm Warning | MRX | Monroe | 39 min |
| May 1, 2:36 PM EDT | Severe Thunderstorm Warning | MRX | Dickenson, Wise | 39 min |
| May 1, 3:05 PM EDT | Severe Thunderstorm Warning | MRX | Russell | 25 min |
| May 1, 3:22 PM EDT | Severe Thunderstorm Warning | MRX | Scott | 38 min |
Nearby
Severe Thunderstorm Warnings in Tennessee, 1990Every severe thunderstorm warning in 1990
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.