...WIND ADVISORY IN EFFECT FROM 2 PM TO 6 PM EST TUESDAY... * WHAT...West winds 20 to 30 mph with gusts up to 50 mph. * WHERE...The District of Columbia, Frederick, Prince Georges, and Montgomery Counties in Maryland, and Fairfax, Loudoun and Arlington Counties including the cities of Alexandria, Fairfax, and Falls Church in Virginia. * WHEN...From 2 PM to 6 PM EST Tuesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down. A few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. By the National Weather Service