With the warmer weather and rain we had, Chapman started to look like it might open up, at least partially. But this new cold snap will put an end to that
This week looks like it's shaping up to be brutal, with most days not getting out of the 20s, and others not even getting out of the teens

I would say it would be pretty safe to assume that ice fishing will be well underway soon just about everywhere.
I don't ice fish, though, so I will hibernate and wait for Spring to get here