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All proposals approved;
Cold and Brush: check air quality conditions before ignitions.
Stovepipe hand piles approved for 50 acres.
All other proposals approved.
Airshed charts and summary table can be found here and maps can be found here.
Tuesday weak low pressure aloft keeps cool weather in place with light winds. Upper level high pressure begins to build in by Wednesday. The pattern generally favors POOR dispersion with the cold air trapped at the surface with warmer air aloft enhancing inversions later in the week.
A few exceptions to note:
Southwest ID will see stronger valley winds due to solar warming so POOR to FAIR dispersion in southwest ID Tuesday and Wednesday.
Cold front moving through eastern MT brings POOR to FAIR dispersion to eastern MT on Thursday.
Next weekend indicates some ridge breakdown potential for increased winds.
Rebekah McCormick/Dan Borsum - NRCC Meteorologists