Is something unusual going on in San Diego?

To make a long story short, I just found out that some flights are diverting to Los Angeles, and flightradar24.com shows almost no activity over the city’s air space, except for a helicopter flying all over the place.

What’s up, if anything?

The FAA website says that there is a “Traffic Management Program” currently in place, due to fog.

https://www.fly.faa.gov/flyfaa/flyfaaindex.jsp?ARPT=SAN&p=0

I looked at my airplane finder app and there aren’t any commercial airplanes flying there. Planes are grounded and did not seem to be moving.

I wonder what’s up?

Thanks. That makes total sense now.

My sister lives a few miles from the airport, and I was concerned for her safety. I feel much relieved.

Here’s what I saw.

Aah, fog. Makes sense.

The NWS site for the San Diego airport currently says that both the air temperature and the dew point are at 56F (so, 100% relative humidity), with no wind at all, and visibility there is only 0.12 miles.

https://forecast.weather.gov/MapClick.php?lat=32.7304&lon=-117.1953#.YaWzPLpMFPY

Evening fog is a pretty common occurrence in coastal San Diego. The sun goes down, the cool air from the Pacific rushes in, and visibility drops off pretty quickly.

Living by the beach as a kid I got pretty used to hearing the fog horn on the OB pier blowing most mornings before the marine layer burned off. If anything, foggy mornings were preferable to clear mornings - it was always colder on clear mornings and my hands would go numb during my morning bike ride to school.

I came home yesterday from a visit to San Diego, and I can confirm that on Sunday night the fog bank that rolled in a half-hour before sunset was massive and impenetrable.

Growing up in San Diego, I had flights home diverted to LA many times. Sometimes we would rent a car and drive the rest of the way, or the airline would put us in a hotel overnight until the next morning’s clearing.

I should add that my sister lives on a hilltop, so maybe the fog didn’t affect her neighborhood all that much.

I consulted with the band, America. Here was their take:

Ain’t it foggy outside?
All the planes have been grounded.

[as a guy who spend half his life in San Diego … “Yep” to what everybody else already said: not at all uncommon in SD. Really common in San Francisco (OhByTheWay)]