Airshed
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Burn Recommendations

Last Updated: 2019-10-11 14:57:22.019059 MST
Idaho

No Restrictions

AS11

#176156, #201451, #202295 - Consider adjusting ignition timing, if possible, in order to allow adequate venting, prior to evening settling. Confirm favorable wind direction/dispersion with test fire, adjust accordingly.  Monitor dispersion through the ignition and monitor PM Concentrations at Lancaster/Coeur d’Alene monitor, adjust accordingly

#202319, #202330, #202445, #202730 - Consider adjusting ignition timing, if possible, in order to allow adequate venting, prior to evening settling. Confirm favorable wind direction/dispersion with test fire, adjust accordingly.  Monitor dispersion through the ignition and monitor PM Concentrations at Pinehurst monitor, adjust accordingly

AS 15

#202371 - Consider adjusting ignition timing, if possible, in order to allow adequate venting, prior to evening settling. Confirm favorable wind direction/dispersion with test fire, adjust accordingly.  Monitor dispersion through the ignition and monitor PM concentrations at McCall monitor, adjust accordingly

Montana

No Restrictions

AS 1

#176188, #202421, #202422, #202943 - Consider adjusting ignition timing, if possible, in order to allow adequate venting, prior to evening settling. Confirm favorable wind direction/dispersion with test fire, adjust accordingly.  Monitor dispersion through the ignition and monitor PM Concentrations at Libby monitor, adjust accordingly


Meteorology/Dispersion Discussion

Last Updated: 2019-10-11 08:09:36.900590 MST

MARGINAL-GOOD dispersion Today Idaho and Western Montana with Northwest flow aloft and NW surface winds. Scattered rain and mountain snow showers, especially along and near the Continental Divide. GOOD-EXCELLENT dispersion Central/Eastern Montana with NW flow aloft. Moderate-strong NW surface winds.

GOOD dispersion Tuesday Idaho and Western Montana with Southwest flow aloft. S/SW surface winds. MARGINAL-GOOD dispersion Central/Eastern Montana with high pressure ridge aloft and SE surface winds.

GOOD-EXCELLENT dispersion Wednesday Idaho and Western Montana with strong Westerly flow aloft and at the surface. Scattered rain and mountain snow. GOOD-EXCELLENT dispersion Central/Eastern Montana with strong Westerly flow aloft and breezy Westerly surface winds.

MARGINAL-GOOD dispersion Thursday Idaho and Western Montana with weak ridge of high pressure and W/NW flow aloft and at the surface. Isolated rain and mountain snow Idaho Panhandle and Northwest Montana. GOOD-EXCELLENT dispersion Central/Eastern Montana with strong Northwesterly flow aloft and moderate NW surface winds.

Tuesday 15 October Dispersion Forecast

MONTANA:

Northwest (AS 1, 2): GOOD. 

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

Southwest (AS 7, 8A, 8B):  GOOD.

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


IDAHO:

North (AS 11): GOOD.

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

West Central (AS 14, 15, 21A):  MARGINAL.

East Central (AS 16, 17):  MARGINAL.

Northeast (AS 18, 19): MARGINAL.

Southeast (AS 20): MARGINAL.

Southwest (AS 21B, 22, 23, 24, 25):GOOD.


Prepared by Michael Richmond/Coleen Haskell, Meteorologists NRCC