Several times I have ended up someplace where it was too windy to drive safely. Best procedure for me is to point the truck nose into the wind and hunker down until the weather improves. Sometimes this means I've had to stay an extra night or two in the same spot and fortunately that has always been possible.
I'm originally from San Diego. Sometimes on I-8 heading east through our mountains you could see highway signs which had been mounted on something the size of telephone poles - poles snapped, metal signs twisted and bent. Newspaper had photos of semi-trucks blown over. Warnings to high profile vehicles are serious. Please don't ignore them and try to drive on through.