San Diego County’s coastal areas were under a dense fog advisory Tuesday night, and the limited visibility forced a ground stop at San Diego International Airport.
The advisory was issued just after 7:45 p.m. and was expected to continue until 6 a.m. Wednesday for Oceanside, Vista, Carlsbad, Encinitas, San Diego, National City and Chula Vista, according to the National Weather Service. The agency said visibility was dropping to one-quarter mile or less, which made impacts to driving conditions and air travel possible.
Those foggy conditions prompted the Federal Aviation Administration to order a ground stop for SAN starting at 8:48 p.m. It was initially expected to last until 10:15 p.m. but was later extended by an hour.
SAN had experienced at least 85 delays and two cancellations by 9 p.m., according to the flight tracking website FlightAware. The airport’s website was also showing dozens of delayed flights at that time.
A screenshot of San Diego International Airport’s website showing the flight status of arrivals just after 8:50 p.m. on Oct. 28, 2025.
“If driving, slow down, use your headlights, and leave plenty of distance ahead of you,” the NWS said.