I agree! After pondering, I just reduced that 40% to 30% for my newsletter which sails at 4 pm. If it still populates with significance at 24 hrs., that 30% can increase to 50%.
Of course, some weenies are already hyped to 80%, which is a recipe for heartbreak.
Some of those read my newsletter. That's another reason to drop to 30% with a caveat about 9 days out. Snow-lovers thrive on hope. I don't wish to be the snow grinch to others.
30% can be a happy median. 40% is a little too bullish.