We do not expect you to complete a mission if weather is going to make your flight unsafe. If you are interested in signing up for a mission, but are hesitating because it is looking like weather may be an issue that day, we prefer you sign up for the mission anyway. Any other pilot who signs up may also have to end up canceling.
If you do have to cancel, we can look for a replacement pilot if you think another pilot may be able to complete the mission safely. Our passengers are aware that you may have to cancel for a variety of reasons, and they are expected to be prepared with a back-up plan.