Lightning in Mariposa County, California

Lightning September 21, 2023 · Mariposa County, California

Injuries

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

A newspaper article mentioned that two hikers were injured by a lightning strike while taking shelter in a cave near Half Dome.

The wider storm

A cold front associated with an upper trough moved through central California on September 21. This system brought cooler temperatures to the area along with a period of increased winds to the area during the afternoon and evening hours. A few thunderstorms popped up ahead of the cold front during the afternoon over the Sierra Nevada. One thunderstorm over Yosemite Park produced a lightning strike which injured two hikers near Half Dome.

Began near Yosemite Natl Park (37.7462, -119.5328).

Source: NOAA Storm Events Database, event 1129302. Narratives are written by the National Weather Service forecast office that issued the report.

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