Anyone who really cared about safety wouldn't drive a motorhome... fundamentally they are large, heavy, don't handle well and don't have to meet Federal crash standards for passenger safety.
But since we all accept that substantial risk, why would one panic about weather checking? It's a well understood issue that doesn't represent significant risk.
The Green Machine -- 2000 Mountain High Coachworks Summit (Spartan chassis / Cummins ISC)
...and F-Troop: Fearghus, Fiona, and Frankie (Cairn Terriers)