I had to reroute and head back down to the M1.
Heading up the Gwydir Highway I rode into the worst storm I have ever experienced. The hail was the size of golf balls, (i have the bruises to show for it), the winds were blowing over trees and vision was almost zero. About a third of the way up, after riding around two trees partially blocking the road, traffic was halted by a huge tree that blocked both lanes and the verges either side. I couldn't get the bike around this one. After consulting with other travelers in their cars, the road wasn't opening any time soon, as the SES were on the way but dealing with other multiples callouts from this storm.
Decision made for me. Reroute!