Yep. I'm in Dearborn, just outside of Detroit. A thin layer of slush caused my signal to drop to "0" on all transponders. I have never had this little amount of snow cause an issue (AT-9/Sidecar dish). I had to get up on the ladder with the long broom and get the heavy slush off. I'm a bit ticked as we were watching something we recorded only to find out we missed the last half hour due to a little bit of slush.
I must admit, I am ticked. I have had to brush off the single LNB, the Phase III dish a few times, but this was the first time in a year and a half (and that includes some heavy snows) that I've had to brush off the 5LNB/AT-9. Not acceptable. At 42 years old, I don't care for having to climb a cold, aluminum ladder at night to use an extended (homemade) broom to clean off slush/snow.