It’s foggy outside on the Georgia coast. But how do we know it’s foggy? Fortunately we have satellites to help out. Here is a product from the GOES satellite that looks at different temperatures and wavelengths, and color codes the clouds in a way that lets us figure out where fog and low clouds are likely. Here is the view of the southeast from just before dawn this morning; the dull aqua to gray is fog:
and here is the key:
Of course, you could just look out the window, but that wouldn’t involve fancy computers and satellites 😛 … in any event, the fog is widespread and dense this morning, so be careful (and don’t use your high beams)!
For more on the nighttime microphysics satellite imagery you can read the NOAA (link, PDF).
You know it’s foggy when it actually leaves the streets damp.