That would be my first thought as well. Then I start thinking about it (Uh-Oh!
) it, I start to wonder how exactly would a destructive amount of moisture find its way into a typical O-gauge loco's circuit boards? In a diesel or electric the electronics are perched inside the shell atop the chassis, with the only obvious points of entry being near the running gear for the truck wires and maybe the speaker if it's in the fuel tank. On a steam loco the boards are usually in the tender with the main exit being the tether opening, so opportunities-for-intrusion wise, they're pretty much the same as a diesel.
Assuming you had your track already plowed and 'flangeways' cut in the remaining snow by a less sensitive loco beforehand, and you're not running in an active snowstorm with high winds blowing flakes into every nook and cranny, how many easy pathways exist for snow to reach vulnerable electronics from track level? Sure, there is "A" risk, but how big is that one compared to other mishaps known to KO a board? (personally, I'd be more concerned about cold plastic couplers in a heavy train being stressed by slack action)
---PCJ
