Ok, now I understand the confusion. When you said "unless you have clear blue sky overhead," it seemed like you thought the weather was important, like there is

Ok, now I understand the confusion. When you said "unless you have clear blue sky overhead," it seemed like you thought the weather was important, like there is a satellite broadcasting video back down to earth that would be interrupted if it were cloudy. What you meant is that it's visible from above, not blocked by some kind of bridge or something. And yes, that's absolutely true. I've been on streets that are right underneath bridge decks and drivers can't find. One way to avoid this is to set your pickup location to a business if one exists (i.e. a bar, hotel, restaurant), so the address is correct.