Airshed
Management
System

Show Information for:

Burn Recommendations

Last Updated: 2021-03-05 13:04:14.395773 MST
Idaho
No Proposals 
Montana

No Restrictions

AS 2

#170553 & 202606 - Monitor dispersion conditions and confirm favorable wind direction/dispersion conditions with test fire.  Monitor impact to adjacent roadways, adjust as needed.

AS 5

#204221 - Monitor dispersion conditions and confirm favorable wind direction/dispersion conditions with test fire.  Monitor impact to Butte area, adjust as needed.  


Meteorology/Dispersion Discussion

Last Updated: 2021-03-04 14:23:11.085458 MST

MARGINAL smoke dispersion in Idaho and western Montana Today with southwest flow aloft and north-northwest surface winds. Scattered snow showers in central Idaho and southwest Montana.  MARGINAL-GOOD smoke dispersion in central/eastern Montana with southwest flow aloft. Light and variable surface winds.

MARGINAL-GOOD smoke dispersion in Idaho and western Montana Tuesday with a trough of low pressure overhead and northwest surface winds. Widespread rain/snow showers. MARGINAL-GOOD smoke dispersion in central/eastern Montana with southwest flow aloft. Light and variable surface winds in central Montana but light northeast surface winds in eastern Montana. Rain and snow showers in southern half of Montana.

GOOD smoke dispersion in Idaho and western Montana Wednesday with northwest flow aloft and at the surface. Widespread rain/snow showers. GOOD smoke dispersion in central/eastern Montana with northwest flow aloft/trough of low pressure. Northwest surface winds.

MARGINAL smoke dispersion in Idaho and western Montana Thursday with southwest flow aloft ahead of a closed low pressure system over the Columbia Basin. Widespread rain/snow showers. GOOD smoke dispersion in central/eastern Montana with weak flow aloft/weak ridging. Northeast surface winds.

Tuesday 09 March Dispersion Forecast

MONTANA:

Northwest (AS 1, 2): POOR in AS 2, MARGINAL in AS 1.

West Central (AS 3A, 3B, 4, 5, 6): MARGINAL.

Southwest (AS 7, 8A, 8B):  MARGINAL.

Central/Eastern (AS 9, 10): MARGINAL.


IDAHO:

North (AS 11): MARGINAL.

North Central (AS 12A, 12B, 13): MARGINAL.

West Central (AS 14, 15): MARGINAL.

East Central (AS 16, 17):  MARGINAL.

Southeast (AS 18, 19, 20):  GOOD.

Southwest (AS 21, 22, 23, 24): GOOD.


Prepared by Coleen Haskell, NRCC Meteorologist