When I was working for the National Weather Service, before the powers that be eliminated pilot briefing from our workload and gave it to the FAA, many, many times I urged pilots not to go because of bad weather. They went anyway. What did I know.
I was at an uncontrolled airport, 200 obscured and snow. You pilots know what I'm saying. Pilot so drunk he could hardly stand. He wanted to fly from Winnemucca, NV to Reno, NV. Reno had W0X1/8S. For the non pilots, these are conditions bad enough that the birds walk. He went anyway, literally never to be seen again. About 6 years later, a troop of boy scouts came upon the wreck. He not only got as far as Reno, but crashed on Mt Rose, just a few yards from the highway. You have no idea how hard I tried to talk him out of taking off. I guess the only thing he did right was file a flight plan. Then we had "clear and 40". He would not fly at all if there was even one cloud in the sky. I was never afraid to fly with him. He was careful.
Paul B.