You know, I realized when we had an amazing thick fog that that was 'way more dangerous than rain or snow or even ice... I can go slow or walk. Fog... I'm on the road. SOme perfectly nice person is going to say, instead of "oh, look! a bicycle in front of me!" in some surprise... "Oh, crapdoodle! A bicycle underneath me!"
Fortunately the fog blew away by the time i had to leave, and the conditions for that kind of fog are rare on the prairie... you need a huge source of open water, which we had in the form of 6" snowfall followed by 50 degree temps.
And this week... it's just flurries and cold and 25-40 mph winds. We're off!