Update, July 30: Fog Today now renders an infrared difference image (10.3um - 3.9um) after dark. Though the infrared bands from GOES-16 are lower resolution, this provides at least an approximate view of what the fog does at night. Have opinions about this change, or other feature suggestions? Send me an email.
Ever wondered where the San Francisco fog line is? Now you can tell in realtime, with Fog Today, a project by Logan Williams. Fog Today uses data from NOAA's high resolution GOES-16 satellite provided by the University of Wisconsin-Madison Space Science and Engineering Center's Real Earth project.
GOES-16 is currently undergoing testing, and all data is preliminary. The satellite data has some artifacts due to Real Earth's Web Mercator rectification. There may also be missing images and glitchy data. If it's foggy when you get to the beach, it's not my fault.
Funding for GOES-16 and its planned partner, GOES-17, is currently in jeopardy. The Trump administration has proposed huge cuts to NOAA's National Environmental Satellite, Data, and Information Service. Not only will this mean more foggy beach trips, it will also mean hurricanes that are harder to forecast and wildfires that are more difficult to track.