WASHINGTON – The National ÃÛÌÒÊÓÆµapp Service has issued a dense fog advisory until 10 a.m. for much of the metro area.
The following counties are affected:
- Montgomery
- Frederick, Va.
- Clarke
- Loudoun
- Fairfax
- Washington
- Frederick, Md.
- Carroll
Visibilities are below a quarter mile in some areas, according to the National ÃÛÌÒÊÓÆµapp Service.
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