Rain changed to snow behind a strong low pressure system during the early evening of February 26. Orographic snowfall occurred in the higher terrain as much colder air aloft moved into the region.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS MRX wrote it up.
Rain changed to snow behind a strong low pressure system during the early evening of February 26. Orographic snowfall occurred in the higher terrain as much colder air aloft moved into the region. The northwest component to the low level flow aided lifting of the moist air in the mountains.
The local office's own words before the first event, 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 the first event at Feb 26, 2:52 PM EST, 3 hours 8 minutes earlier.
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</html>The national radar mosaic for the moment the first event began.
3 heavy snow. Local standard time, as filed.
A seven inch snowfall depth was measured on Mount LeConte.
A three inch snowfall depth was estimated four miles east of Limestone Cove.
A 3.5 inch snowfall depth was measured four miles southwest of Roan Mountain.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Tennessee in 2020Every state in 2020This day in weather historyWarnings in Tennessee, February 2020
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 871005, 871003, 871004.