Biggest Blacktail I have taken was at ~ 7:00 PM on October 25, 2014
It doesn't surprise me one bit, I have seen more big blacktail bucks (by far) in weather like that than in any other weather scenario.
When I'm after a nice buck this is what I am hoping for. FWIW, I saw five different really decent bucks, nothing really outstanding, but better blacktails than most hunters will ever take, out enjoying the stormy weather with their lady friends on Sunday evening. Rutting hard and this weather pattern is everything I could possibly ask for. It doesn't hurt that I thoroughly enjoy being out hunting when the weather is like that anyway.