Warehouse fire smolders into third day, driving unhealthy air in California city

A large warehouse fire has been burning for three consecutive days. The blaze is located in an unnamed California city. Smoke from the fire has degraded local air quality to unhealthy levels. Authorities have issued health advisories for residents. Emergency crews remain on scene attempting to contain the blaze. The fire's cause has not been publicly disclosed. Residents are advised to limit outdoor activities until conditions improve. Officials will continue monitoring air quality and fire progress.