An upper level trough and potent mid-level vorticity maximum rotated over the Ohio Valley December 1-2, 2025. The deep mid-level trough helped increase lower level southwesterly winds and moisture advection into central Kentucky.
Every event with a place to put it; 4 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
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 LMK wrote it up.
An upper level trough and potent mid-level vorticity maximum rotated over the Ohio Valley December 1-2, 2025. The deep mid-level trough helped increase lower level southwesterly winds and moisture advection into central Kentucky. Deep moisture and marginal temperature profiles led to the development of moderate to heavy mixed precipitation. Rain, sleet, and snow set up over central Kentucky late on December 1, before precipitation gradually changed over to all snow from west to east during the early morning hours of December 2, 2025. Robust mid-level frontogenesis led to the development of heavier mesoscale snow bands, including brief heavier sleet in some locations. In the end, a swath of heavy snow totaling 4-5 inches fell from the Louisville Metro northeast into Northern Kentucky.
The national radar mosaic for the moment the first event began.
4 heavy snow. Local standard time, as filed.
Heavy snow totaling 4 inches occurred in Louisville, with closer to 3-3.5 inches near the Bullitt County line.
Heavy snowfall of up to 4.0-4.5 inches occurred across Oldham County.
Heavy snowfall of up to 4 inches occurred in Henry County.
Heavy snowfall of up to 4 inches occurred in Trimble County.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Kentucky in 2025Every state in 2025This day in weather historyWarnings in Kentucky, December 2025
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 2026-09-30. Each event’s entry at NCEI: 1306319, 1306321, 1306323, 1306325.