Weak high pressure and low level moisture led to dense fog formation in the early evening across a majority of the Mid Atlantic.  The fog did not last through the night as light northwest flow moved into the region.

Dense Fog in SHENANDOAH, VIRGINIA
From 09-DEC-13 17:55:00 to 10-DEC-13 00:45:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Visibility of a quarter mile or less was reported at surrounding locations.

Dense Fog in PAGE, VIRGINIA
From 09-DEC-13 17:30:00 to 10-DEC-13 04:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Visibility of a quarter mile or less was reported at Luray.

Dense Fog in ALBEMARLE, VIRGINIA
From 09-DEC-13 18:50:00 to 10-DEC-13 04:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Visibility of a quarter mile or less was reported at Charlottesville Airport.

Dense Fog in GREENE, VIRGINIA
From 09-DEC-13 18:10:00 to 10-DEC-13 04:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Visibility of a quarter mile or less was reported at surrounding locations.

Dense Fog in ORANGE, VIRGINIA
From 09-DEC-13 18:05:00 to 10-DEC-13 02:45:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Visibility of a quarter mile or less was reported at Orange Airport.

Dense Fog in FREDERICK, VIRGINIA
From 09-DEC-13 18:05:00 to 09-DEC-13 23:40:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Visibility of a quarter mile or less was reported at Winchester Airport.

Dense Fog in MADISON, VIRGINIA
From 09-DEC-13 17:45:00 to 10-DEC-13 03:25:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Visibility of a quarter mile or less was reported at surrounding locations.

Dense Fog in WARREN, VIRGINIA
From 09-DEC-13 17:45:00 to 10-DEC-13 01:50:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Visibility of a quarter mile or less was reported at surrounding locations.

Dense Fog in CLARKE, VIRGINIA
From 09-DEC-13 17:30:00 to 10-DEC-13 00:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Visibility of a quarter mile or less was reported at surrounding locations.

Dense Fog in RAPPAHANNOCK, VIRGINIA
From 09-DEC-13 17:55:00 to 10-DEC-13 02:20:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Visibility of a quarter mile or less was reported at surrounding locations.

Dense Fog in LOUDOUN, VIRGINIA
From 09-DEC-13 17:20:00 to 10-DEC-13 02:45:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Visibility of a quarter mile or less was reported at Dulles International.

Dense Fog in PRINCE WILLIAM, VIRGINIA
From 09-DEC-13 20:00:00 to 09-DEC-13 22:30:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Visibility of a quarter mile or less was reported at Manassas.

Dense Fog in FAIRFAX, VIRGINIA
From 09-DEC-13 17:45:00 to 10-DEC-13 02:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Visibility of a quarter mile or less was reported at surrounding locations.

Dense Fog in NORTHERN FAUQUIER, VIRGINIA
From 09-DEC-13 18:35:00 to 10-DEC-13 01:35:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Visibility of a quarter mile or less was reported at surrounding locations.

Dense Fog in SOUTHERN FAUQUIER, VIRGINIA
From 09-DEC-13 19:45:00 to 10-DEC-13 01:55:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Visibility of a quarter mile or less was reported at Warrenton.