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Office: LWX FPUS71 KLWX 181242 NOWLWX Short Term Forecast National Weather Service Baltimore MD/Washington DC 742 AM EST Sun Feb 18 2018 ANZ535-536-DCZ001-MDZ013-016-503>506-VAZ037>040-050>057-501-502- 505-506-181500- Tidal Potomac from Key Bridge to Indian Head MD- Tidal Potomac from Indian Head to Cobb Island MD- District of Columbia-Prince Georges-Charles-Northwest Montgomery- Central and Southeast Montgomery-Northwest Howard- Central and Southeast Howard-Albemarle-Greene-Madison- Rappahannock-Orange-Culpeper- Prince William/Manassas/Manassas Park-Fairfax- Arlington/Falls Church/Alexandria-Stafford-Spotsylvania- King George-Northern Fauquier-Southern Fauquier-Western Loudoun- Eastern Loudoun- Including the cities of Washington, Bowie, Suitland-Silver Hill, Clinton, College Park, Greenbelt, Laurel, Camp Springs, St. Charles, Waldorf, Germantown, Damascus, Bethesda, Rockville, Gaithersburg, Silver Spring, Lisbon, Columbia, Ellicott City, Charlottesville, Stanardsville, Madison, Orange, Gordonsville, Culpeper, Dale City, Manassas, Woodbridge, Lake Ridge, Montclair, Reston, Herndon, Annandale, Centreville, Chantilly, McLean, Franconia, Arlington, Alexandria, Falmouth, Fredericksburg, Dahlgren, Warrenton, Turnbull, Purcellville, Leesburg, Ashburn, and Sterling 742 AM EST Sun Feb 18 2018 .NOW... Patchy dense fog has developed this morning across portions of the area, resulting in visibilities to below one mile at times. Conditions are expected to improve in the next couple of hours. If traveling, be prepared for rapidly changing conditions. If encountering dense fog, slow down and exercise caution. $$ BKF