Just plowed through a huge snowdrift, and after I landed, the alternator seemed to not be charging. The lights were dimmed, wipers slow, etc., After I revved it up, it charged back up again and has been fine since. I had a friend who had a similar experience. He hit a smaller drift in his minivan, and the alt. light came on. It has functioned fine since though. I checked under the hood and everything seems fine. Should I get it looked at? Does the momentary blast of snow short it out for a few seconds or something?