Monday, July 21, 2014

Clear Views, Clean Air

After several days of smoke inundation, it was great to wake up this morning to clear views and clean air.

In addition to yesterday's storms, we've had a shift in the large-scale wind direction after several days of northwesterly flow, as evident in wind observations from the top of the Collins chair at Alta Ski Area.  The transition to southwesterly flow has resulted in a smoke-free airstream for the Wasatch Front.

Overnight PM2.5 observations from the University of Utah showed the lowest PM2.5 levels in a few days, with values sitting near 0.

Enjoy the clean air!

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