High pressure over the Great Basin brought weak offshore flow to southern California. Warm temperatures west of the mountains and in the deserts resulted, as well as widespread dense fog. Temperatures soared in the upper 80s to low 90s in many desert and valley communities on the 9th and 10th, with highs topping out at 94 in Anaheim, Corona and Palm Springs. Many coast and valley locations reported dense fog some nights between the 6th and 13th, where visibility was less than 1/4 mile.

Dense Fog in ORANGE COUNTY COASTAL, CALIFORNIA
From 12-NOV-19 21:00:00 to 13-NOV-19 00:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter in Laguna Nigel reported dense fog with visibility of 1/4 mile or less between 2100 PST on November 12th and 0000 PST on November 13th.

Dense Fog in SAN DIEGO COUNTY COASTAL AREAS, CALIFORNIA
From 10-NOV-19 04:00:00 to 10-NOV-19 08:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Brown Field reported dense fog from 0400 to 0800 PST on November 10th. Visibility was reported to be below 1/4 mile.

Dense Fog in SAN DIEGO COUNTY COASTAL AREAS, CALIFORNIA
From 10-NOV-19 04:00:00 to 10-NOV-19 08:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Carlsbad Airport reported dense fog from 0400 to 0800 PST on November 10th. Visibility was reported to be 1/4 mile or less.

Dense Fog in ORANGE COUNTY INLAND, CALIFORNIA
From 10-NOV-19 05:00:00 to 10-NOV-19 08:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Fullerton Airport reported dense fog between 0500 and 0800 PST on November 10th. Visibility was reported to be 1/4 mile or less.

Dense Fog in SAN DIEGO COUNTY COASTAL AREAS, CALIFORNIA
From 12-NOV-19 21:00:00 to 13-NOV-19 00:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter reported dense fog in Encinitas between 2100 PST on November 12th and 0000 PST on November 13th. Visibility was reduced down to 1/8 mile.

Dense Fog in SAN DIEGO COUNTY VALLEYS, CALIFORNIA
From 12-NOV-19 21:00:00 to 13-NOV-19 00:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter reported dense fog in La Mesa between 2100 PST on November 12th and 0000 PST on November 13th. Visibility was reported to be 1/8 mile.

Dense Fog in SAN DIEGO COUNTY COASTAL AREAS, CALIFORNIA
From 08-NOV-19 00:00:00 to 08-NOV-19 04:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

North Island (Coronado) reported dense fog from 0000 to 0400 PST on November 8th. Visibility of less than 1/4 mile was reported.

Dense Fog in ORANGE COUNTY COASTAL, CALIFORNIA
From 08-NOV-19 04:00:00 to 08-NOV-19 07:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

John Wayne Airport reported dense fog between 0400 and 0700 PST on November 8th. Visibility was less than 1/4 mile.

Dense Fog in SAN DIEGO COUNTY COASTAL AREAS, CALIFORNIA
From 08-NOV-19 21:00:00 to 09-NOV-19 00:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

San Diego Airport reported dense fog between 2100 PST on November 8th through 0000 PST on November 9th. Visibility was reported less than 1/4 mile at times.