I been to several of these islands out on the chain. Until you been there the weather cannot be understood. Its the start of low pressure systems that hit the south 48 west coast. Buildings are cabled down, you strap your vehicle doors to keep them from bending, they open very short, no trees well sort of, most the wind tops them to about 3 feet tall. Fog and rain and of course the wind, we had 112 was our top wind but 40-60 mph is very normal wind most a lot of days. I think 30 mph is the average wind for 365 days. 60 mph the island is restricted to no outside. It blows for days. Reevers use to fly to some of the island and people land, wind shows up, they are stuck. Wind will blow waves up over the beach onto the black sand roads. I am not a judge of wave height but they were 20 feet. Boats / ships will be tossed around like toys in a bath tube. Many WWII bunkers are still there. Wooden frames too. One island has 50cal beach were the GIs dumped truck loads of 50cal into the beach water and you can still find WWII 50 cal ammo. While the beaches are black sand, just past the sand is sharp coral, walking on it low tide will shred your boots with deep holes 15 feet or more deep. It can and does snow all 12 months. The snowpack never sticks very deep, due to the wind, it just snows. Kiska was a atomic bomb detonation island. Attu is quite large. Attu has good fishing and hunting. But the 1 ot 2 days the weather is clear and the water calm, very beautiful view.