<p>A storm hit the California counties of Napa and Sanoma on February 7, resulting in serious flooding. This drone footage shows the effect of flood damage on the area.</p><p>Flash flood warnings were issued for rivers and creeks in Napa and the nearby areas of Alameda, Marin and Santa Cruz counties, according to local reports</a>. Flooding also left several drivers stranded on Highway 121 in Sonoma County and forced many schools in the area to close. Credit: Clayton Inskeep via Storyful</p><br />
