tricky weather call

Tough reading this weather. Stu, our closet meteorologist, should know. But he made a GO call for the RASC dark sky observing event at the Long Sault. Earlier, Manuel had phoned me asking what the evening was going to be like. I shared my confusion. Environment Canada says there's going to be a thunderstorm in the early evening. Then it will get foggy. The ADDS satellite image shows, as sunlight pours in my office window, relatively clear skies. Who knows. Manuel called back again. He said he wants to focus only on collimation. Good plan. We set our rendezvous time.