Wildfire — East Bay Interior Valleys, California

2022-05-20 · East Bay Interior Valleys, California

Event narrative

A vegetation fire at Highway 4 near Willow Pass Road in the City of Concord broke out just after 12:00 pm. Contra Costa County Fire responded when smoke was spotted. Strong winds quickly spread this fire to approximately 20 acres, before it was contained. No damage to structures or persons was reported, but three businesses in the area were briefly evacuated. https://eastcountytoday.net/contra-costa-county-firefighters-battling-vegetation-fire-along-willow-pass/.

Wider weather episode

An inside slider type low pressure system moving through the Great Basin brought gusty northerly winds up to 50 mph in the hills and very low relative humidity to interior parts of the SF Bay Area Thursday night into Friday afternoon. This combination of gusty winds and dry air led to near critical fire weather conditions in parts of the interior. A Wind Advisory was issued for this time frame for the interior North Bay Mountains, East Bay Hills and East Bay Interior Valleys. Report of a small brush fire was received during this event.

Source: NOAA Storm Events Database, event_id 1029559. Narrative written by the NWS forecast office that issued the report.