Alert archive / Tennessee / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 56, NWS Morristown, TN
NWS Morristown, TN issued this severe thunderstorm warning at May 5, 2020, 7:25 PM EDT for 4 counties in Tennessee. It was in force for 35 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 5, 2020, 7:25 PM EDT (23:25 UTC)
- Expired
- May 5, 2020, 8:00 PM EDT
- In force
- 35 min
- Issued by
- NWS Morristown, TN
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Carter County, TN, Greene County, TN, Unicoi County, TN, Washington County, TN
The radar
The Knoxville radar (KMRX), 83 km from the middle of the area, began a volume at 23:25 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 11.4 hours before the alert went out and 232 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
- 1899 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 88 m²/s²
- 0-3 km storm-relative helicity
- 444 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 4, 11:03 PM EDT | Severe Thunderstorm Warning | MRX | Marion | 42 min |
| May 4, 11:08 PM EDT | Special Weather Statement | MRX | Sequatchie | 52 min |
| May 4, 11:40 PM EDT | Special Weather Statement | MRX | Hamilton | 50 min |
| May 4, 11:50 PM EDT | Special Weather Statement | MRX | Bradley | 40 min |
| May 5, 12:09 AM EDT | Special Weather Statement | MRX | McMinn, Polk | 51 min |
| May 5, 7:12 PM EDT | Special Weather Statement | MRX | Greene, Washington | 48 min |
| May 5, 12:31 AM EDT | Special Weather Statement | MRX | Cherokee, Clay | 59 min |
| May 5, 4:58 PM EDT | Special Weather Statement | MRX | Cherokee, Clay | 47 min |
Nearby
Severe Thunderstorm Warnings in Tennessee, 2020Every severe thunderstorm warning in 2020
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; radar from the NEXRAD Level II archive.