A shallow marine layer brought two days of morning dense fog over the coast and valleys of San Diego and Orange Counties.

Dense Fog in SAN DIEGO COUNTY COASTAL AREAS, CALIFORNIA
From 21-JAN-16 03:58:00 to 21-JAN-16 06:55:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

McClellan-Palomar Airport reported 3 hours of visibility less than 1/4 mile.

Dense Fog in SAN DIEGO COUNTY COASTAL AREAS, CALIFORNIA
From 21-JAN-16 17:53:00 to 22-JAN-16 07:55:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Brown Field Municipal Airport reported 15 hours of dense fog with visibility of 1/4 mile.

Dense Fog in SAN DIEGO COUNTY COASTAL AREAS, CALIFORNIA
From 22-JAN-16 03:23:00 to 22-JAN-16 04:55:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Miramar MCAS/Mitscher Field Airport reported dense fog with a visibility of 1/4 mile.

Dense Fog in SAN DIEGO COUNTY COASTAL AREAS, CALIFORNIA
From 22-JAN-16 04:00:00 to 22-JAN-16 07:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter reported visibility of 300 yards at El Toro Rd and Aliso Creek in Aliso Viejo.

Dense Fog in SAN DIEGO COUNTY COASTAL AREAS, CALIFORNIA
From 21-JAN-16 02:53:00 to 21-JAN-16 07:53:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Brown Field Municipal Airport reported visibility of 1/4 mile for 5 hours.

Dense Fog in SAN DIEGO COUNTY VALLEYS, CALIFORNIA
From 21-JAN-16 03:55:00 to 21-JAN-16 08:55:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Gillespie Field Airport reported dense fog with a visibility of 1/4 mile.

Dense Fog in SAN DIEGO COUNTY COASTAL AREAS, CALIFORNIA
From 21-JAN-16 03:55:00 to 21-JAN-16 08:55:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Miramar MCAS/Mitscher Field Airport reported visibility of 1/4 mile for 5 hours.

Dense Fog in ORANGE COUNTY INLAND, CALIFORNIA
From 21-JAN-16 03:53:00 to 21-JAN-16 06:01:00 (PST-8)
Crop damage: 0.00K
Reported by: ASOS

Fullerton Municipal Airport reported periods of dense fog with visibility less than 1/4 mile.

Dense Fog in ORANGE COUNTY INLAND, CALIFORNIA
From 21-JAN-16 05:00:00 to 21-JAN-16 07:30:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spotter reported dense fog reducing visibility to 200 feet or less at the interchange of State Highways 91 and 55.

Dense Fog in SAN DIEGO COUNTY COASTAL AREAS, CALIFORNIA
From 22-JAN-16 02:46:00 to 22-JAN-16 06:03:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Montgomery Field reported dense fog with a visibility of 1/4 mile.

Dense Fog in SAN DIEGO COUNTY COASTAL AREAS, CALIFORNIA
From 21-JAN-16 02:45:00 to 21-JAN-16 07:53:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Montgomery Field reported 5 hours of dense fog with visibility of 1/4 mile.

Dense Fog in SAN DIEGO COUNTY COASTAL AREAS, CALIFORNIA
From 21-JAN-16 05:52:00 to 21-JAN-16 07:52:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Oceanside Municipal Airport reported dense fog with visibility of 1/4 mile.

Dense Fog in SAN DIEGO COUNTY COASTAL AREAS, CALIFORNIA
From 21-JAN-16 22:01:00 to 22-JAN-16 04:58:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Los Alamitos U. S. Army Airfield reported periods of dense fog with visibility of 1/4 mile.