EF1 Tornado — Calaveras, California

2023-01-10 · near Felix, Calaveras, California

Event narrative

A brief EF-1 tornado touched down near a small reservoir and Hogan Dam Road and continued NE for approximately 0.4 miles. It caused extensive tree damage to white oak and pine trees with trees uprooted and topped. The approximate path length was 0.4 miles with a path width of 50 yards and max winds of 90 mph.

Wider weather episode

A major winter storm brought strong winds with moderate to heavy rain bringing renewed flooding of already elevated waterways. There was flooding of roadways, urban areas, rivers, streams and creeks, with rockslides and mudslides also reported. There were dangerous mountain travel conditions with snow levels around 4000 feet and 3 to 5 feet of storm total snowfall above 6000 feet. Winds gusted up to 60-70 mph in the Central Valley. In the mountains there were gusts up to 80 to 115 mph, which coupled with heavy snow, brought whiteout conditions. There were widespread trees down across the area, blocking roads and causing numerous power outages. There were thunderstorms on the 10th with a tornado in Calaveras County and straight line wind damage and small hail reported in the northern San Joaquin Valley.

View location on OpenStreetMap → (38.0834, -120.7581)

Source: NOAA Storm Events Database, event_id 1078867. Narrative written by the NWS forecast office that issued the report.