Dense Fog — Grapevine, California

2024-12-30 · Grapevine, California

Event narrative

Webcams indicated visibility below 1000 feet on Interstate 5 in the Grapevine area.

Wider weather episode

Skies cleared out across the San Joaquin Valley following a cold frontal passage during the evening of December 29. Once winds diminished overnight, some patchy dense fog formed in the Joaquin Valley towards daybreak on December 30; but the fog not last long. A more noticeable impact was fog resulting from upslope winds over Interstate 5 near Tejon Pass and on SR 58 near Tehachapi Pass where fog impacted travel for a few hours during the afternoon and early evening of December 30.

Source: NOAA Storm Events Database, event_id 1221785. Narrative written by the NWS forecast office that issued the report.