A ridge of high pressure helped a shallow marine layer develop over the Southern California Bight. The result was dense fog along the coast of Orange and San Diego Counties on the morning of the 15th.
Every event with a place to put it; 3 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.
A ridge of high pressure helped a shallow marine layer develop over the Southern California Bight. The result was dense fog along the coast of Orange and San Diego Counties on the morning of the 15th.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS San Diego, CA wrote its last area forecast discussion before the first event at Feb 14, 9:41 PM PST, 4 hours 19 minutes earlier.
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</html>The national radar mosaic for the moment the first event began.
3 dense fog. Local standard time, as filed.
John Wayne Airport and Los Alamitos Airfield reported persistent dense fog with a visibility of 1/4 mile or less.
Multiple ASOS stations along the coast reported a visibility of 1/4 mile or less over a 6 hour period. San Diego International reported fog with a visibility of 1/4 mile or less between 0324PST and 0627PST with 7 delays, 2 holds for 77 minutes, 3 diversions.
A spotter reported dense fog with near zero visibility along Highway 55 near the cities of Orange and Villa Park.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in California in 2017Every state in 2017This day in weather historyWarnings in California, February 2017
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 2026-09-30. Each event’s entry at NCEI: 680835, 680840, 680838.