Double edge sword, we complete a report for turn arounds i.e (unforecast)weather and are asked why did you go, what did you miss in your planning. Learning process sure......
Sounds like we have a similar process informing the requestor that there is the chance we cannot arrive. We also provide them options like another service on the opposite side of the mountians (204nm) They maybe an option if weather is an issue for us.
Last month we had a very similar weather pattern with a mountain request mid afternoon. We were already on a request, the towns in the area of the request reported later gusts >100mph in the valley.
Part of the equation also is the mass used for turbulence, I believe is 12,500lbs. For an EC135P1 forecast moderate might be severe.