Show Information for:
All proposals approved.
Airshed charts and summary table can be found here and maps can be found here.
Friday a disturbance tracks across Alberta which weakens inversions and increases wind especially in most of MT and southern and central ID. FAIR dispersion over northern ID as inversions will be stronger with cooler temperatures. Eastern MT under strong high pressure for light winds for FAIR dispersion but GOOD to VERY GOOD dispersion other locations.
Saturday high pressure develops quickly over ID with stable conditions and light winds for ID and most of MT. Dispersion POOR to FAIR over ID and western MT with better dispersion east eastern MT with FAIR to GOOD dispersion.
Sunday upper level high pressure weakens slightly but temperatures warm. Inversion still stronger over north ID and northwestern MT for POOR to FAIR dispersion. Rest of the area enough surface heating and sunshine for FAIR to GOOD dispersion.
Dan Borsum - NRCC Meteorologist