An upper level ridge off the coast of Southern California brought marine layer clouds and dense fog during the night and morning hours between October 25 through 29. No major impacts were reported.

Dense Fog in SAN DIEGO COUNTY COASTAL AREAS, CALIFORNIA
From 26-OCT-18 06:00:00 to 26-OCT-18 09:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported 1/2 mile visibility near University of San Diego between 0600 and 0900 PST on October 26th.

Dense Fog in ORANGE COUNTY INLAND, CALIFORNIA
From 28-OCT-18 05:00:00 to 28-OCT-18 09:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Fullerton Airport ASOS reported 1/4 mile visibility or less between 0500 and 0800 PST on October 28th.

Dense Fog in SAN DIEGO COUNTY COASTAL AREAS, CALIFORNIA
From 28-OCT-18 02:00:00 to 28-OCT-18 04:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

San Diego Lindbergh Field ASOS reported 1/4 mile visibility between 0200 and 0400 PST on October 28th.

Dense Fog in SAN DIEGO COUNTY COASTAL AREAS, CALIFORNIA
From 28-OCT-18 04:00:00 to 28-OCT-18 07:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Carlsbad Palomar Airport ASOS reported less than 1/4 mile visibility between 0400 and 0700 PST on October 28th.

Dense Fog in ORANGE COUNTY COASTAL, CALIFORNIA
From 28-OCT-18 04:00:00 to 28-OCT-18 07:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Los Alamitos ASOS reported less than 1/4 mile visibility between 0400 and 0700 PST on October 28th.

Dense Fog in ORANGE COUNTY COASTAL, CALIFORNIA
From 28-OCT-18 05:00:00 to 28-OCT-18 08:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported visibility of less than a mile in Brea between 0500 and 0800 PST on October 28th.

Dense Fog in ORANGE COUNTY COASTAL, CALIFORNIA
From 29-OCT-18 00:00:00 to 29-OCT-18 05:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Carlsbad Palomar Airport reported less than 1/4 mile visibility between 0000 and 0500 PST on October 28th.

Dense Fog in ORANGE COUNTY COASTAL, CALIFORNIA
From 29-OCT-18 01:00:00 to 29-OCT-18 06:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Fullerton Airport ASOS reported 1/4 mile visibility between 0100 and 0600 PST on October 28th.

Dense Fog in SAN DIEGO COUNTY VALLEYS, CALIFORNIA
From 28-OCT-18 23:00:00 to 29-OCT-18 05:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Brown Field ASOS reported 1/4 mile visibility from 2300 on October 28th to 0500 on October 29th.

Dense Fog in ORANGE COUNTY COASTAL, CALIFORNIA
From 27-OCT-18 05:00:00 to 27-OCT-18 08:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Imperial Beach ASOS reported 1/4 mile visibility between 0500 and 0800 PST on October 27th.

Dense Fog in ORANGE COUNTY COASTAL, CALIFORNIA
From 27-OCT-18 03:00:00 to 27-OCT-18 08:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

John Wayne Airport ASOS reported less than 1/4 mile visibility between 0300 and 0800 PST on October 27th.

Dense Fog in SAN DIEGO COUNTY VALLEYS, CALIFORNIA
From 25-OCT-18 05:00:00 to 25-OCT-18 08:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Brown Field ASOS reported 1/16th mile visibility between 0500 and 0800 PST on October 25th.

Dense Fog in ORANGE COUNTY COASTAL, CALIFORNIA
From 27-OCT-18 05:00:00 to 27-OCT-18 08:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Los Alamitos ASOS reported 1/8 mile visibility between 0500 and 0800 PST on October 27th.

Dense Fog in SAN DIEGO COUNTY VALLEYS, CALIFORNIA
From 25-OCT-18 06:00:00 to 25-OCT-18 09:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported 100 ft estimated visibility at 800 ft elevation in the hills southeast of San Marcos between 0600 and 0900 PST on October 25th.

Dense Fog in SAN DIEGO COUNTY COASTAL AREAS, CALIFORNIA
From 28-OCT-18 05:00:00 to 28-OCT-18 08:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Montgomery Field ASOS reported 1/4 mile visibility or less between 0500 and 0800 PST on October 28th.

Dense Fog in SAN DIEGO COUNTY COASTAL AREAS, CALIFORNIA
From 28-OCT-18 05:00:00 to 28-OCT-18 08:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spotter reported 1/4 mile visibility east of I-5 at 320 ft elevation from 0500 to 0800 PST on October 28th.

Dense Fog in ORANGE COUNTY COASTAL, CALIFORNIA
From 27-OCT-18 05:00:00 to 27-OCT-18 08:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spotter reported less than 1/4 mile visibility near Orange Coast College in Costa Mesa between 0500 and 0800 PST on October 27th.