The record number is now 1,517 zones simultaneously under a Dense Fog Advisory at 1315z this morning. Top 4 dates are now
2024-01-25 | 1,517
2024-01-24 | 1,341
2024-01-23 | 1,107
2023-01-02 | 926 https://t.co/1cwn9Y83nB pic.twitter.com/sz5avJGYLj

— daryl herzmann (@akrherz) January 25, 2024