Information for September 29, 2016

Burn Recommendations  latest update: 09/28/2016 16:05

MONTANA

Airshed 2 - 170316 Little Beaver 20 ac is restricted due to location.

                 166357 White Tailed 34-08 48 ac is restricted to limit cumulative impacts.

Airshed 3B - 173389 Chamberlain F2 1200 ac is restricted due to size pending more   information.

No other restrictions.

*Missoula County burns have been coordinated with Missoula County.*

IDAHO

No restrictions.


These burn recommendations apply only to members of the Montana/Idaho Airshed Group. Nonmembers should follow any applicable local, state, or Tribal guidelines regarding open burning.


Meteorology/Dispersion Discussion  latest update: 09/28/2016 07:42

THURSDAY SEPTEMBER 29 DISCUSSION:
GOOD smoke dispersion conditions are expected Thursday as a stronger SW flow develops over ID and W MT, light SW-W winds in afternoon. Isolated showers/wet storms will be possible late in the day with general instability. E MT will also see GOOD to EXCELLENT smoke dispersion conditions with E-SE surface winds.

Extended Outlook:
GOOD-EXCELLENT smoke dispersion conditions will occcur Friday with a strong SW flow over ID and W MT, light SW-W winds in afternoon. Scattered showers/wet storms will be possible late in the day with general instability. E MT will also see GOOD to EXCELLENT smoke dispersion conditions with E-SE surface winds.

GOOD to EXCELLENT smoke dispersion conditions are expected Saturday as SW flow over ID and MT intensifies as a cold front moves across ID and into W MT by afteroon. Scattered showers will be possible in the afternooon across Central-N ID and W MT. E MT will continue to see GOOD to EXCELLENT smoke dispersion conditions under a light S flow.

GOOD to EXCELLENT smoke dispersion conditions are expected Sunday as the wet cold front moves into E MT and as a SW flow continues over both states. Showers will be possible across Central and E MT through the day. Western areas will dry out as the day progresses.

GOOD to EXCELLENT smoke dispersion conditions are expected Monday as a broad upper level trough moves over the region and closes off into a low pressure area over the Great Basin. Widespread showers are expected across SC and E MT while other areas should remain mostly dry. Transport wind flow will be from the NW from Central MT west through ID and from the S across E MT. 

For a smoke dispersion web briefing, please click here.

Thursday September 29 Dispersion Forecast

MONTANA

Northwest (AS 1, 2): GOOD-EXCELLENT. 

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

Southwest(AS 7, 8A, 8B):   GOOD-EXCELLENT. 

Eastern Montana (AS 9 and 10): GOOD-EXCELLENT. 

  

IDAHO:

North (AS 11): GOOD-EXCELLENT. 

North Central (AS 12A, 12B, 13):  GOOD-EXCELLENT. 

West Central (AS 14, 15, 21A):  GOOD-EXCELLENT. 

East Central (AS 16, 17): GOOD-EXCELLENT. 

Northeast (AS 18, 19):  GOOD-EXCELLENT.  

Southeast (AS 20): GOOD-EXCELLENT. 

 

Prepared by Bryan Henry/Michael Richmond Northern Rockies Met


Forecast for

Burn Recommendations  latest update:

No information posted for 09/30/2016.


Meteorology/Dispersion Discussion  latest update: 09/28/2016 07:43

FRIDAY SEPTEMBER 30 DISCUSSION:
GOOD-EXCELLENT smoke dispersion conditions will occcur Friday with a strong SW flow over ID and W MT, light SW-W winds in afternoon. Scattered showers/wet storms will be possible late in the day with general instability. E MT will also see GOOD to EXCELLENT smoke dispersion conditions with E-SE surface winds.

Extended Outlook:
GOOD to EXCELLENT smoke dispersion conditions are expected Saturday as SW flow over ID and MT intensifies as a cold front moves across ID and into W MT by afteroon. Scattered showers will be possible in the afternooon across Central-N ID and W MT. E MT will continue to see GOOD to EXCELLENT smoke dispersion conditions under a light S flow.

GOOD to EXCELLENT smoke dispersion conditions are expected Sunday as the wet cold front moves into E MT and as a SW flow continues over both states. Showers will be possible across Central and E MT through the day. Western areas will dry out as the day progresses.

GOOD to EXCELLENT smoke dispersion conditions are expected Monday as a broad upper level trough moves over the region and closes off into a low pressure area over Central MT. Widespread showers are expected and snow levels along the Divide should lower to around 5500 feet or so. Transport wind flow will be from the N.

GOOD to EXCELLENT smoke dispersion conditions are expected Tuesday as the upper level low pressure area moves NE in to Saskatchewan leaving the region under a lighter WNW flow. Scattered showers will be possible in all locations though the day...especially across E MT. 

For a smoke dispersion web briefing, please click here.

Friday September 30 Dispersion Forecast

MONTANA

Northwest (AS 1, 2): GOOD-EXCELLENT. 

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

Southwest(AS 7, 8A, 8B):   GOOD-EXCELLENT. 

Eastern Montana (AS 9 and 10): GOOD-EXCELLENT. 

  

IDAHO:

North (AS 11): GOOD-EXCELLENT. 

North Central (AS 12A, 12B, 13):  GOOD-EXCELLENT. 

West Central (AS 14, 15, 21A):  GOOD-EXCELLENT. 

East Central (AS 16, 17): GOOD-EXCELLENT. 

Northeast (AS 18, 19):  GOOD-EXCELLENT.  

Southeast (AS 20): GOOD-EXCELLENT. 

 

Prepared by Bryan HenryNorthern Rockies Met