Winter Storm — Western San Gabriel Mountains Including the Highway 14 Corridor, California

2025-03-12 to 2025-03-15 · Western San Gabriel Mountains Including the Highway 14 Corridor, California

Event narrative

Winter storm conditions developed across the western range of the San Gabriel Mountains. Snowfall totals of 4-8 inches were reported. Along with the snowfall, strong southerly winds were observed: Barley Flats (gust 69 MPH), Ford Observatory (gust 62 MPH) and Yucca Circle (gust 59 MPH).

Wider weather episode

A late-season winter storm brought numerous weather hazards to Southwestern California. Rainfall totals generally ranged between 0.50 and 1.50 inches across coastal areas up to 4 inches in the mountains. Winter storm conditions developed in the mountains with snowfall totals up to 18 inches and southerly wind gusts up to 77 MPH. Thunderstorms, associated with this system, brought some reports of flooding as well as a weak tornado.

Source: NOAA Storm Events Database, event_id 1268563. Narrative written by the NWS forecast office that issued the report.