The National Weather Service has issued Red Flag Warnings in California and Colorado.
North of San Francisco enhanced fire weather conditions will return Friday night and Saturday with 20 to 30 mph northeast winds gusting at 40 to 50 mph. Isolated gusts up to 60 are possible on the highest ridges and peaks. The humidity will be in the teens during the day and between 25 and 35 percent at night.
The map was current as of 11 a.m. MDT on Friday. Red Flag Warnings can change throughout the day as the National Weather Service offices around the country update and revise their forecasts.