Heavy Fog by Michael Lefkowitz: A new style of Fog!

Today's Video:

Heavy heavy fog that never clears. Feels like London / San Fran! Awesome concept and puzzle to introduce from Michael.

Link to Play:

Heavy Fog by Michael Lefkowitz https://sudokupad.app/tlpdek1j3j

Rules:

Normal 6x6 Sudoku rules apply.

ARROWS - Digits on an arrow sum to the digit in the attached circle. Arrows only move orthogonally, and don't share cells.

FOG - The grid is partially covered in fog. It's really heavy fog, and I have no idea how to get rid of it. Sorry about that.