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All proposals approved.
Airshed charts and summary table can be found here and maps can be found here.
On Thursday high pressure begins to shift east with southwest flow aloft moving into ID and western MT. This pattern maintains warm temperatures at the surface while cooling aloft brings deeper mixing. With mostly sunny skies expect surface heating to support good mixing with mostly GOOD to VERY GOOD dispersion. The one area which may maintain stronger inversions with POOR to FAIR dispersion is southeast ID.
Friday a disturbance moving into the PacNW pushes a cold front through north ID into western MT bringing increased winds and deep mixing. North ID may have cloud cover and cooler temperatures and showers for POOR to FAIR dispersion. All other areas GOOD to EXCELLENT dispersion with some locations seeing 30 to 50 mph wind gusts.
Saturday disturbance tracks into southern Canada with strong southwest flow aloft over MT and north ID. GOOD to EXCELLENT dispersion over MT. Western parts of ID may have stronger inversions as surface high pressure reaches the area for POOR to FAIR dispersion but the rest of ID should see FAIR to GOOD dispersion with stronger winds.Dan Borsum - NRCC Meteorologist