Warm, moist air aloft overrunning colder surface air combined with lingering low level moisture to produce low clouds and widespread dense fog across portions of the region.

Dense Fog in CLARKE, VIRGINIA
From 18-JAN-19 07:35:00 to 18-JAN-19 09:55:00 (EST-5)
Reported by: AWOS

Observations from around the area indicate visibility fell to a quarter of a mile or less in dense fog.

Dense Fog in CULPEPER, VIRGINIA
From 18-JAN-19 07:35:00 to 18-JAN-19 09:55:00 (EST-5)
Reported by: AWOS

Observations from around the area indicate visibility fell to a quarter of a mile or less in dense fog.

Dense Fog in NORTHERN FAUQUIER, VIRGINIA
From 18-JAN-19 07:35:00 to 18-JAN-19 09:55:00 (EST-5)
Reported by: AWOS

Observations from around the area indicate visibility fell to a quarter of a mile or less in dense fog.

Dense Fog in SOUTHERN FAUQUIER, VIRGINIA
From 18-JAN-19 07:35:00 to 18-JAN-19 09:55:00 (EST-5)
Reported by: AWOS

Observations from around the area indicate visibility fell to a quarter of a mile or less in dense fog.

Dense Fog in EASTERN LOUDOUN, VIRGINIA
From 18-JAN-19 07:35:00 to 18-JAN-19 10:15:00 (EST-5)
Reported by: AWOS

Observations from around the area indicate visibility fell to a quarter of a mile or less in dense fog.

Dense Fog in ALBEMARLE, VIRGINIA
From 18-JAN-19 16:55:00 to 18-JAN-19 23:09:00 (EST-5)
Reported by: ASOS

Observations from around the area indicate visibility fell to a quarter of a mile or less in dense fog.

Dense Fog in ORANGE, VIRGINIA
From 18-JAN-19 16:55:00 to 18-JAN-19 23:09:00 (EST-5)
Reported by: ASOS

Observations from around the area indicate visibility fell to a quarter of a mile or less in dense fog.

Dense Fog in WARREN, VIRGINIA
From 18-JAN-19 07:35:00 to 18-JAN-19 09:55:00 (EST-5)
Reported by: AWOS

Observations from around the area indicate visibility fell to a quarter of a mile or less in dense fog.

Dense Fog in FREDERICK, VIRGINIA
From 18-JAN-19 07:15:00 to 18-JAN-19 10:15:00 (EST-5)
Reported by: AWOS

Observations from around the area indicate visibility fell to a quarter of a mile or less in dense fog.

Dense Fog in SHENANDOAH, VIRGINIA
From 18-JAN-19 07:15:00 to 18-JAN-19 10:15:00 (EST-5)
Reported by: AWOS

Observations from around the area indicate visibility fell to a quarter of a mile or less in dense fog.

Dense Fog in ROCKINGHAM, VIRGINIA
From 18-JAN-19 07:15:00 to 18-JAN-19 10:15:00 (EST-5)
Reported by: AWOS

Observations from around the area indicate visibility fell to a quarter of a mile or less in dense fog.

Dense Fog in PAGE, VIRGINIA
From 18-JAN-19 07:15:00 to 18-JAN-19 10:15:00 (EST-5)
Reported by: AWOS

Observations from around the area indicate visibility fell to a quarter of a mile or less in dense fog.

Dense Fog in NORTHERN VIRGINIA BLUE RIDGE, VIRGINIA
From 18-JAN-19 07:15:00 to 18-JAN-19 10:15:00 (EST-5)
Reported by: AWOS

Observations from around the area indicate visibility fell to a quarter of a mile or less in dense fog.

Dense Fog in RAPPAHANNOCK, VIRGINIA
From 18-JAN-19 07:35:00 to 18-JAN-19 09:55:00 (EST-5)
Reported by: AWOS

Observations from around the area indicate visibility fell to a quarter of a mile or less in dense fog.

Dense Fog in PRINCE WILLIAM, VIRGINIA
From 18-JAN-19 07:35:00 to 18-JAN-19 09:55:00 (EST-5)
Reported by: AWOS

Observations from around the area indicate visibility fell to a quarter of a mile or less in dense fog.

Dense Fog in ALBEMARLE, VIRGINIA
From 18-JAN-19 08:53:00 to 18-JAN-19 12:53:00 (EST-5)
Reported by: ASOS

Observations from around the area indicate visibility fell to a quarter of a mile or less in dense fog.

Dense Fog in FAIRFAX, VIRGINIA
From 18-JAN-19 07:35:00 to 18-JAN-19 10:15:00 (EST-5)
Reported by: AWOS

Observations from around the area indicate visibility fell to a quarter of a mile or less in dense fog.

Dense Fog in WESTERN LOUDOUN, VIRGINIA
From 18-JAN-19 07:35:00 to 18-JAN-19 10:15:00 (EST-5)
Reported by: AWOS

Observations from around the area indicate visibility fell to a quarter of a mile or less in dense fog.