After the Wednesday night storm, it has sadly taken only a couple of days for the pollution to return. The current situation is quite a bit different from that earlier this week because we have an incredibly strong inversion in place right now very near the valley floor. This morning's sounding showed a surface temperature at the airport of -2.7˚C with the temperature increasing with height to 6.4ºC at 828 mb (5800 ft).
Source: SPC |
Source: SPC |
With a strong inversion in place near the valley floor, spectacular conditions are found in the mountains, such as the view below from the top of the Supreme Chair at Alta.
However, a shallow layer of smog lies over the Salt Lake Valley as can be seen looking NW from SR-210 just north of Little Cottonwood Canyon.
The shallowness of the pollution layer is also evident this afternoon in the upper Aves.
I suspect the smog will deepen some this afternoon as the lake breeze pushes southward into the Salt Lake Valley. That is a common occurrence during these shallow inversion events.
A splitting trough coming through tomorrow will try to stir things up. The southerlies in advance of the system were evident on the ridge tops today. It's not a lock, but let's hope it comes through.
As a prominent person in the Utah/Alta resort skiing community and Wasatch backcountry skiing community I can't help but be curious as to your thoughts on Alta pulling out of the Mountain Accord so they can potentially develop Grizzly Gulch. I know you try to stay out of politics but I can't help but to try to get your opinion.
ReplyDeleteI've been concerned about something like this happening for some time. See http://wasatchweatherweenies.blogspot.com/2018/05/whither-mountain-accord.html.
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