If I could eat my words, I WOULD!!
I've only lived in Cleveland for a few weeks now...The sun came out for the first time all week. All of that dry fluffy snow turned to packed, wet, heavy melty snow on the reflector, and BOOM, I literally was watching my HD go away. I put some shoes on and brushed off the wet snow with a broom and voila! HD is back.
Irony? I think so!
Same thing here. My signal strength has dropped to 55-85 on most transponders. I still have a picture but I may have to get the ladder out of the garage tomorrow.