The National Weather Service has issued a wind advisory for Flagstaff, Williams, Munds Park and areas east of Flagstaff along Interstate-40, from 9 p.m. Thursday until 8 a.m. Friday. Forecasters say to expect winds 10-to-20 miles per hour with gusts up to 45 miles-per-hour at times. If you are traveling along I-40 over the next couple of days, use caution, especially if you are in a high profile vehicle.