Bitter cold makes for interesting LF, MW, and HF, signal enhancements? I've seen that.

Reaching single digits Saturday morning 1/22/2022, this might be a neat time to check-out lower FREQ signal enhancements. And, not just the lower FREQ's, but possible Tropo from VHF / UHF stations, especially if you are up by the Great Lakes. And, if you have a Part #15 AM station, see how much further that's going to reach. If we're going to get stuck with being frigid, might as well have some fun with it. Right???