Persistent cold-air pool forecast

Persistent cold-air pool forecast valid Wednesday 01/30/2019 5:00 pm MST 

Summary:  A weak persistent cold-air pool (high pressure and associated capping inversion is not that pronounced, meaning the pollution builds into a deeper layer, and also surface snow cover is partially gone) will continue through Friday, with PM2.5 concentrations increasing ~5 microgram/m3 each day. A series of weather systems will clean the air starting Saturday and bring Valley Rain this weekend, followed by Valley snow early next week.

Thursday 31 January:

Partly cloudy, increasing haze within cold-air pool.

High 37 F Low 27 F

 

Friday 1 February:

Partly cloudy, increasing haze within cold-air pool.

High 42 F Low 25 F

NAM Forecast Model showing temperature inversion in place on Friday morning showing a surface inversion and inversion aloft.

Saturday  2 February:

A chance of showers in the afternoon.  

High 45 F Low 32 F.

  
Sunday 3 February: 

   

Rain showers likely, changing to snow showers Sunday night.

High  40 F Low 30 F.

Monday 4 February
 
A chance of snow.

High  39 F Low 23 F.

Tuesday 5 February
 
A chance of snow.

High  32 F Low 21 F.