Heavy Rain — Contra Costa, California

2010-04-11 · near Walnut Creek, Contra Costa, California

Direct deaths

Injuries

$10K

Property damage

Event narrative

A rain-slicked road led to the crash of a car at the intersection of Mount Diablo Boulevard and Iron Horse Regional Trail in Walnut Creek. The vehicle crashed through a fence and landed upside down in the rain-swollen San Ramon Creek bypass. The driver and one other individual perished, while one occupant was rescued three miles downstream. A Contra Costa County official stated that at the time of the crash, the water would have been 2.34 feet deep and flowing at 6.4 feet per second.

Wider weather episode

A pacific storm system brought strong wind and brief heavy rain to California. It even produce a few thunderstorms over the coastal waters just west of the central coast which moved onshore and produced small hail.

View location on OpenStreetMap → (37.8986, -122.0570)

Source: NOAA Storm Events Database, event_id 227063. Narrative written by the NWS forecast office that issued the report.