Dense Fog — San Bernardino County Mountains, California

2018-05-30 · San Bernardino County Mountains, California

Event narrative

Foggy conditions attributed to a 30-vehicle crash on Interstate 15 near Oak Hill Road and Highway 138 interchange in the Cajon Pass. The crash occurred around 1030 PST when two vehicles became disabled in a collision south of Oak Hill Road. This resulted in a collision of crashes that stretched a mile long. The southbound lanes of Interstate 15 were closed until around 1330 PST. 20 people were injured in this incident.

Wider weather episode

Marine layer clouds brought drizzle and dense fog to the Cajon Pass on the morning of May 30th. Dense fog reduced visibilities on Interstate 15, and a 30-vehicle crash occurred on Interstate 15 South. 21 people were injured in this incident.

Source: NOAA Storm Events Database, event_id 758240. Narrative written by the NWS forecast office that issued the report.