Now we get another inch of snow

Here in Nolalu today's snow adds to about three inches that had yet to melt from the six inches we got a few days ago. Red Lake also got an inch today but they escaped the earlier dump.
Temperatures are way below normal and are expected to stay that way for about a week. What does this mean for ice-out? It sets it back by at least a few days for Red Lake and maybe a week down here near Thunder Bay.
For Red Lake, I now expect ice-out to be back to May 15.