Fog swallows up the Golden Gate Bridge in San Francisco
Robert Galbraith/Reuters

Bask in the sublime beauty of “Karl,” the city’s chilly miasma, with these always-updated satellite images.

It’s cold and cottony, sails over the city like the gloomy mist preceding a ghost invasion, and even has a name, “Karl”—San Francisco’s lovely fog, arriving each summer to smother the horizon and the hopes of sun-loving beachgoers.

Now locals and anyone worldwide can check in on Karl’s current condition thanks to Fog Today, which pulls detailed scans from NOAA’s new geostationary Earth-observation satellite, GOES-16. The site presents static images taken with the last five to 10 minutes and also loops from the previous day, so you can watch the fog spread silently, but often explosively, over the coastline and into the San Francisco Bay. (Unfortunately it does not process nighttime images, because the dark-induced noise makes it look like locusts are overrunning the city.)

Logan Williams, an Open Lab Fellow at BuzzFeed who lives in east San Francisco, built the site partially out of love for West Coast weather. “Watching the fog flow in is beautiful, and seeing it flow over the hills is an experience many in the Bay Area cherish,” he says. “With these satellite images, we can watch the macro-scale view as well, and it’s equally fascinating—atmospheric eddies, rivers, and ripples revealed through our fog.”

There’s also a practical side to Fog Today. The summertime miasma—formed by moisture-rich ocean air hitting seasonally colder coastal waters and shifted winds, and aided into the Bay by the welcoming geography of the Golden Gate—can quickly transform pleasant, bright excursions into struggles through Silent Hill streets. There’s a reason visitors often hear the quote falsely attributed to Mark Twain: “The coldest winter I ever spent was a summer in San Francisco.”

“Summer weather forecasts for the Bay Area are sometimes not very useful, because everything depends on the fog,” says Williams. His tactic is to use public-access websites like NOAA’s to keep an eye-in-the-sky view, because “fog dictates so much of the Bay Area's weather, and it was so easy to see,” he says. “And I saw an opportunity to make this easier for other people.”

But for whatever reason people visit Fog Today—to ooh and ahh or to predict when to pack a jacket—Williams hopes they’ll recognize the value of technologies used to study weather and climate, which could face funding cuts under President Trump’s proposed budget.

“I think it can be too easy to forget that a lot of the things we take for granted, including accurate weather forecasts, are a result of government investment in technology and its maintenance,” he says. “I wanted to remind people of that and also raise awareness of the politicization of these useful, and economically valuable, satellite systems.”

About the Author

Most Popular

  1. a photo of Zurich, Switzerland
    Life

    Death to Livability!

    What does it really mean when certain kinds of cities keep getting ranked as the world’s “most livable”?

  2. A rendering of Quayside, the waterfront development now being planned for Toronto.
    Solutions

    A Big Master Plan for Google's Growing Smart City

    Google sibling company Sidewalk Labs has revealed its master plan for the controversial Quayside waterfront development—and it’s a lot bigger.

  3. Environment

    Paris Wants to Grow ‘Urban Forests’ at Famous Landmarks

    The city plans to fill some small but treasured sites with trees—a climate strategy that may also change the way Paris frames its architectural heritage.

  4. Four young adults exercise in a dark, neon-lit gym.
    Life

    Luxury Gyms Invite You to Work Out, Hang Out, Or Just Work

    With their invite-only policies and coworking spaces, high-end urban gyms aspire to be fitness studio, social club, and office rolled into one.

  5. Equity

    Berlin Will Freeze Rents for Five Years

    Local lawmakers agreed to one of Europe’s most radical rental laws, but it sets the stage for a battle with Germany’s national government.

×