Observations from Alta-Collins show a total of about 27 inches of snow if you add up all the interval accumulations before the board is wiped back down to zero (top panel) and include the 4 inches observed so far today. The water total is only 1.6 inches, although there may be some underdone a bit as that yields a water content of only 6%, which seems quite low compared to other locations.
And the latest radar shows that it continues to snow at Snowbasin, but Alta is temporarily out of the echoes.
Factors contributing to the lower Alta snow totals in this event are multiple and include the predominantly southerly or southwesterly flow yesterday (favoring the northern Wasatch and yesterday afternoon upper BCC and Deer Valley), a tendency for the strongest precipitation features to be to our north (e.g., radar above), and just plain dumb luck (sometimes even Alta misses out on the more scattered and chaotic snow showers).
No need to shed any tears as 27" in 48 is still just fine and eventually the law of averages will win out.