"I had a hunch - your Domain was a lot less sandy in general."

Which brings up another point.

"Speaking of, how's it holding up? Ours is in the middle of a blizzard. Whole ship feels like it's going to blow over."

It's curiosity that brings it up. That, and what he and Shepard had seen in the Horizon, those menacing storm clouds hadn't meant anything good, he's sure. If they can all pool their information, they can figure something out, most likely.