Airshed
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Burn Recommendations

Last Updated: 2026-09-25 15:38:10.742413 MST
Idaho

All proposals approved.

Montana

Conditional approval: Pepe Ledoux. Limit to 50 acres.

 All other proposals approved.


Meteorology/Dispersion Discussion

Last Updated: 2026-09-27 22:08:39.715468 MST

Airshed charts and summary table can be found here and maps can be found here.

Monday westerly flow aloft with weak disturbance tracking along the Alberta/Saskatchewan/Montana border with high pressure west of the Divide and lower pressure east of the Divide. POOR to FAIR dispersion northern and central ID with lighter winds and stronger inversions. Southern ID and MT FAIR to GOOD dispersion with weaker inversions and stronger winds. 

Tuesday a stronger disturbance tracking further north across Canada increases the westerly flow and brings stronger winds to most of the region. FAIR to GOOD dispersion with less wind over west central ID (AS14 and AS15) for POOR to FAIR dispersion. 

Dan Borsum - NRCC Meteorologist

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