Waymo has been testing up around Lake Tahoe in the snow, and in Arizona to deal with dust, and in Washington to deal with rain. Ford and GM are both testing in

Waymo has been testing up around Lake Tahoe in the snow, and in Arizona to deal with dust, and in Washington to deal with rain. Ford and GM are both testing in Michigan. Here's Drive.ai demoing L4 in a downpour at night (really impressive): https://youtu.be/GMvgtPN2IBU https://youtu.be/GMvgtPN2IBU But in general terms it's logical to get everything working well in optimal conditions before moving on to challenging weather. I don't think they consider any of this stuff to be unsolvable, short of maybe a whiteout blizzard, but, you know, first things first.