The photos are stunning and thankfully only 7 have died seeing such massive carnage. This "Super Fog" was not predicted in advance and here's why.
These pictures are from today, but the same views apply to yesterday. NWS called for dense fog, but it wasn't the fog itself that made it "super". It was the fog combining with a smoke plume from a marsh fire that lowered visibility to zero. Note how the plume widens out the farther away from the fire (Orange circle). The nature of fog is often patchy, but once into that fog bank, it lasted for over a mile until visibilities improved once beyond the plume. Bottom line, when visibilities are restricted (rain, snow, fog) you MUST slow down and hope others do the same.
Weather wise, there is a deep upper trough over the West (Cold) with a upper ridge over the Southeast (warmth). That won't change before next week so it'll stay summer like here. The good news is some rain is falling over the Plains.
Unfortunately, we'll stay dry. However, winds should stay elevated overnight so dense fog should not happen over the next several days.
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