Thursday, February 8, 2024

65 inches, 8 days

TL;DR: Utah wakes up to more snow, again. Chances of weak disturbances through Saturday.


Nowcast:


Precipitation rates have slowed down, but it's still snowing at Alta. The current snow stake shows just about 2", but this storm was nothing short of spectacular. 

Things really kicked off Tuesday night, and as yesterday's report showed, we all woke up to 7" of new snow atop Little Cottonwood Canyon (LCC). It didn't stop though, and MesoWest shows an additional 13" of snow that fell between 07:00 and 15:00 local. It snowed 2" an hour, for 5 hours straight between 07:00 and 12:00 local. Then after just an hour lull, it picked back up to deliver another 6" overnight for a total of 26" of new snow since Tuesday night. That's awesome! 

Even the great Professor Steenburgh predicted a complicated, and unpredictable snow week. And he was right. Here is what the HRRR called for up Little Cottonwood Canyon, initialized yesterday. You can clearly see Alta well outperformed even the latest model, and scored closer to 17" of snow (instead of the 10" projected).  

The most notable shift I saw in yesterday's storm, was when the winds switched, originally blowing from the south, and then the west northeast. It appears that this was felt heavily through much of the Wasatch. 

Strong southerly winds per GFS valid 0600 UTC Wednesday, February 07

Winds shift to W-NW: GFS valid 0000 UTC Thursday, February 8

It's safe to say the skiing today should be excellent, although perhaps not as excellent as yesterday was. 

Short-Term:

There's still moisture available in the area, however things are more scattered than yesterday. This is easily seen in the NAEFS plume shown below. Winds will shift back to the south during the day today, and then switch back to west northwest later into the evening, which always ups the odds for places like LCC.

The trough remains above Utah, however the concentrated low pressure will sweep through the southern portion of our state, which will limit totals up north. Nevertheless, snow is still in the forecast and that is a good thing. 

More snow in the forecast. Forecast for Saturday: traffic-y 


Long-Term:


The trough mentioned above is expected to depart by the end of day Saturday, bringing drier, albeit colder, conditions pushing in from the northwest. Then, a ridge is forecasted which should mean bluebird days Sunday and Monday. Check back in then! 

Backcountry Comments: 


There was a natural that dusted a party in West Porter, and a 2' deep avalanche observed just above the entrance into Jaws. 

If you plan to travel in the backcountry, it is well advised to avoid being near any avalanche terrain. As always, be sure to travel with all the right safety equipment, have a solid entry and exit plan, and keep atop all things at the UAC

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