Jordan Narrows Transport Study Cold Air Pool Forecast 12 January 2019

High pressure aloft centered over the northern Rockies will remain 

the dominant weather feature early next week, resulting in a 

strengthening cold-air pool through Tuesday. A series of 

weather disturbances will finally return to the area toward 

the middle of the week and scour out the Valley pollution.

The PM2.5 levels across the SLV have remained nearly constant 

the last few days(~30 micrograms/m3) as rain, fog, and low 

clouds have increase vertical mixing and diluted the pollution 

trapped in the Valleys of Northern Utah.

A strengthening inversion with and marginal to poor air quality 

will remain the norm through Monday. Tuesday through Wedsday the 

inversions will likely mix out and air quality will dramatically

improve.

More detailed forecasts to follow starting Monday 14 December.