When facing bosses, shift back to using the Frost Bolt and Cold Snap combo if they don’t resist Frost. If they do, channeling Flameblast while using Ice Wall to protect yourself is a safe bet.
A cold snap lingers for the next day and a half or so with lake effect snow, then a warmup closer to normal on the second half of the week. Weather Warn Day is for Tuesday due to dangerously cold ...