Thunderstorms, fire risks, and snowfall in the Sierra
Fall officially begins Friday night, and Northern California is sure to feel the change of seasons this week. A mix of weather conditions are in store from the Bay Area to the Sierra Nevada.
The Bay Area will see partly cloudy skies with seasonable temperatures through Wednesday, but changes are coming in the second half of the week. By Thursday, northerly winds are expected to clear the skies and increase fire danger in the Sacramento Valley. However, these winds will bring cold air into the mountains, likely cold enough for the first snowflakes of the season to fall in the high Sierra.