Dense Fog Advisory

URGENT - WEATHER MESSAGE National Weather Service Baltimore MD/Washington DC 435 AM EDT Thu Sep 18 2025 Washington-Central and Eastern Allegany-Hampshire-Morgan-Berkeley- Eastern Mineral- 435 AM EDT Thu Sep 18 2025 ...DENSE FOG ADVISORY IN EFFECT UNTIL 8 AM EDT THIS MORNING... * WHAT...Visibility one quarter of a mile or less in dense fog. * WHERE...In Maryland, Washington and Central and Eastern Allegany Counties. In West Virginia, Eastern Mineral, Hampshire, Berkeley, and Morgan Counties. * WHEN...Until 8 AM EDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. &&