Additionally, you might like to ponder this actual incident from the '60s.
Very experienced, fully instrument capable, military helo pilot found himself in a lowering cloud base in a narrowing valley. Could have turned round and back-tracked but (not unreasonably) decide to climb out of it. What he actually climbed into was the base of a very active, building Cu Nb and was, ultimately, spat out of the side at approximately 12.000 feet ... together with the disintegrated component parts of the helo and his three crew members.
Think on.
