Hey folks, lots of good info about the late April conditions in this thread. I thought about starting a new thread but decided I'll just leave my question here:
How big of a risk is a trip to Lake Louise/Banff next year in late April? I'm considering April 17-21, 2023.
Our group is not filled with pounder hounds, so missing big dumps is fine. Slush is okay and even enjoyed. But mostly I'm worried about the ice and hoping to avoid it at all costs.
The coverage is almost always excellent in late April. The last time we had poor coverage in late April was about 7 years ago, but that was an exceptionally bad snow year, with a VERY warm spring. Even so, Sunshine stayed open until mid May.
In my opinion, March to mid April is the safest time for Sunshine. Lake Louise would be mid February to end of March. Conditions typically very good outside of this prime window, but can be a bit more variable.
I think you have very good timing for Sunshine and reasonable timing for Lake Louise.
Obviously, the biggest risk is a warm up followed by a deep freeze. If this happens, expect the front side and Ptarmigan areas at Lake Louise to be a bit icy. The back bowls at lake louise tend to hang onto winter snow longer.
Sunshine has a later spring than lake louise, you will usually find winter snow on all terrain except south facing and lower elevation Goats Eye runs throughout April.
It's not a sure thing, but Banff is a very good bet this time of year.
If possible, I would delay booking to see the snowpack situation. You'll have an idea of the type of year by January ( el ninos can be rough here), and hotels rooms are always easy to come by after Easter. The hills will be empty by then as well.
For reference, look at the upper mountain/back bowl snow depth at Louise. Great seasons top out at 180cm. I would want to see at least 100cm by new year's day.
They are currently reporting 255cm, but this year has been exceptional.