An upper level high and light winds brought dense fog to SoCal in the early morning hours of December 22nd and 24th. John Wayne Airport reported visibility of 1/16th of a mile, and Carlsbad Airport reported visibility of 1/4 of a mile.
Every event with a place to put it; 4 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS SGX wrote it up.
An upper level high and light winds brought dense fog to SoCal in the early morning hours of December 22nd and 24th. John Wayne Airport reported visibility of 1/16th of a mile, and Carlsbad Airport reported visibility of 1/4 of a mile.
The national radar mosaic for the moment the first event began.
4 dense fog. Local standard time, as filed.
Carlsbad Airport reported visibility of 1/4 SM between 0400 and 0830 PST on December 22nd.
John Wayne Airport reported 1/16 SM visibility around 0500 PST on December 22nd.
Spotter reported dense fog with visibility around 1/4 SM at 0800 PST on December 24th.
John Wayne Airport ASOS reported visibility as low as 1/16 SM between 0700 and 0900 PST on December 24th.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in California in 2018Every state in 2018This day in weather historyWarnings in California, December 2018
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 798936, 798938, 798948, 798944.