Flood — Contra Costa, California

2024-02-18 · near Hercules, Contra Costa, California

Event narrative

A 6 inch deep puddle in the slow lane of westbound Interstate 80.

Wider weather episode

Two storm systems impacted central California From February 17 to 20. A quickly-moving cold front came through the region on the 17th, causing minor nuisance flooding and gusty winds. A second, deeper but slower moving, system followed the next day with widespread rain and gusty winds. A warm front associated with this low came through the region late on Sunday the 18th, followed by the associated cold front and associated thunderstorms on Monday the 19th. With the longer period of rainfall and soils being saturated, shallow landslides were reported across the region.

View location on OpenStreetMap → (38.0168, -122.2680)

Source: NOAA Storm Events Database, event_id 1155003. Narrative written by the NWS forecast office that issued the report.