That rain that just went through was pretty intense for 20 minutes. The chicken run was breached, but I was able to seal it off before it totally flooded in. Up to 2.53” and most of the glacier has melted as well.
Looks like it was the coldest day on record for Bozeman airport. All-time record low max of -24, 3rd coldest min on record of -45, and coldest mean on record of -34.5.
Departure of -54
Maybe a little for the west slopes, but keep in mind that isn't all instantaneous. That's thickness paired with 6hr averaged precip. So a lot of that precip is outta here before the column cools to support snow.
Do you recall what Feb 2010 was offhand? I was pretty inverted in that, but obviously CON/MHT-SE roared. Quite a different sfc low position in that one.