30" of snow lost in 21hrs @ Snoqualmie?

So I'm looking at telemetry sites and I notice the dramatic totals at Snoqualmie .
It appears that 30" of snowpack have been washed away in the last 21 hours.  Do you suppose that this is correct?  The temps have been hovering around 40 with plenty of precip but still it seems a bit much to me.

I think that could be correct.
Very depressing!

With the amount of light and fluffy under hard and heavy, combined with rain... I doubt 30" of snow melted away, but I wouldn't doubt that the snowpack compressed by that much.

In a former life working at a East Coast ski area it was not the rain we feared as much as rain combined with wind.  I don't know the exact physics involved but the moist air blowing over the snow surface could destroy a slope overnight compared to just heavy rain.  From the telemetry data the wind was blowing fairly steady with some fair gusts so while the 30" seems high, settling of the snow combined with the wind driven rain could explain the loss.   Of course I really hope we did not lose that much snow!

I propose a ban on all "we need a rain event to take care of the layers" comments on TAY. After I post this message I am going to google DIY Ark plans.

Unfortunately this is correct. Much of the 30" is due to massive settlement, or densification. As of ~2200 hrs 1/7 nearly 10.50" rain has fallen at the Snoqualmie site. A full-depth pit at the study plot revealed a 30+cm layer of slush at the base of the snowpack! -note that the site is flat and inhibits good drainage.