Reply The first red flag warning of the year was issued for much of Northern California. It was originally meant to last until Monday but it was extended through 6 p.m. on Tuesday due to dry and breezy conditions, the National Weather Service announced Sunday. (Getty Images/iStockphoto) NORTHERN CALIFORNIA — Wildfires ignited all over Northern California and parts of the Bay Area on Saturday following the first red flag warning of the year. The warning, issued for much of Northern California, was originally meant to last until Monday but it was extended through 6 p.m. on Tuesday due to dry and breezy conditions, the National Weather Service announced Sunday.