Flash Flood — Tuolumne, California

2023-03-11 · near Tuolumne, Tuolumne, California

Event narrative

Tuolumne County Emergency Manager reported significant roadway flooding in the town of Tuolumne with creeks overflowing their banks.

Wider weather episode

A wet system brought periods of heavy rain with flooding. There was 1 to 2 feet of snow accumulated above 6,500 feet, locally higher on some peaks. Heavy rain fell bringing widespread roadway flooding, as well as local mudslides, flash flooding, with evacuations ordered in some areas. Thunderstorms with large hail, strong damaging winds and tornadoes were reported. Strong winds gusting to 55 to 75 mph brought down numerous trees and powerlines across the area, causing widespread and extended power outages.

View location on OpenStreetMap → (37.9628, -120.2252)

Source: NOAA Storm Events Database, event_id 1090191. Narrative written by the NWS forecast office that issued the report.