Information for April 28, 2017

Burn Recommendations  latest update: 04/28/2017 15:17

MONTANA

No restrictions.

IDAHO

No proposals.


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: 04/27/2017 12:46

Persistent moist cool pattern will continue through for the next 10-14 days, though a little warmer conditions may occur wed-fri next week, when a slightly longer/warmer break between systems occurs. There will also be a dry break west of the Continental Divide tomorrow, when dispersion in ID and Western MT will be the most limited. 
FRIDAY APRIL 28 DISCUSSION:
GOOD dispersion will occur ID and Western MT Today under weak northwest flow aloft. Scattered showers. West-northwest surface/transport flow. GOOD-EXCELLENT dispersion Central/Eastern MT with northerly surface/transport flow Central MT and easterly Eastern MT. Scattered showers Central MT. 
MODERATE-GOOD dispersion will occur ID and Western MT Saturday as weak high pressure ridging builds in. Light southwest-west surface/transport flow. Isolated showers. GOOD-EXCELLENT dispersion Central/Eastern MT with southwest-west surface/transport
flow. Scattered showers Central MT.
GOOD-EXCELLENT smoke dispersion will occur for all ID and Western MT Sunday as a low pressure trough moves throughWesterly surface/transport flow. Showers. Snow level 4500 ft. north to 7000 ft. south. GOOD-EXCELLENT dispersion Central and Eastern MT with westerly surface/transport flow. Scattered showers.
GOOD-EXCELLENT smoke dispersion will occur for all ID and Western MT Monday as a weaker low pressure trough moves through.  Southwest-west surface/transport flow. Scattered Showers. Snow level 4500 ft. north to 7000 ft. south. GOOD-EXCELLENT dispersion Central and Eastern MT with northwest surface/transport flow. Scattered showers.
GOOD dispersion ID and Western MT Tuesday under northwest flow aloft. west-northwest surface/transport flow. Scattered showers mainly MT. GOOD-EXCELLENT dispersion Central and Eastern MT with northwesterly surface/transport flow. Rain/snow. 
MODERATE-GOOD dispersion ID and Western MT Wednesday as stronger high pressure ridging builds in. Light/variable surface/transport flow. Much warmer. GOOD-EXCELLENT dispersion Central/Eastern MT with west-northwest surface/transport flow. 
Saturday 29 April Dispersion Forecast

MONTANA

Northwest (AS 1, 2)   MODERATE-GOOD. 

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

Southwest(AS 7, 8A, 8B):  GOOD.

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

  

IDAHO:

North (AS 11):   MODERATE-GOOD.

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

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

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

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

Southeast (AS 20):  MODERATE-GOOD.

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


Prepared by Michael Richmond Northern Rockies Met


Forecast for

Burn Recommendations  latest update: 04/28/2017 15:13

MONTANA

No proposals.

IDAHO

No proposals,


Meteorology/Dispersion Discussion  latest update: 04/27/2017 12:47

MODERATE-GOOD dispersion will occur ID and Western MT Saturday as weak high pressure ridging builds in. Light southwest-west surface/transport flow. Isolated showers. GOOD-EXCELLENT dispersion Central/Eastern MT with southwest-west surface/transport
flow. Scattered showers Central MT.
GOOD-EXCELLENT smoke dispersion will occur for all ID and Western MT Sunday as a low pressure trough moves throughWesterly surface/transport flow. Showers. Snow level 4500 ft. north to 7000 ft. south. GOOD-EXCELLENT dispersion Central and Eastern MT with westerly surface/transport flow. Scattered showers.
GOOD-EXCELLENT smoke dispersion will occur for all ID and Western MT Monday as a weaker low pressure trough moves through.  Southwest-west surface/transport flow. Scattered Showers. Snow level 4500 ft. north to 7000 ft. south. GOOD-EXCELLENT dispersion Central and Eastern MT with northwest surface/transport flow. Scattered showers.
GOOD dispersion ID and Western MT Tuesday under northwest flow aloft. west-northwest surface/transport flow. Scattered showers mainly MT. GOOD-EXCELLENT dispersion Central and Eastern MT with northwesterly surface/transport flow. Rain/snow. 
MODERATE-GOOD dispersion ID and Western MT Wednesday as stronger high pressure ridging builds in. Light/variable surface/transport flow. Much warmer. GOOD-EXCELLENT dispersion Central/Eastern MT with west-northwest surface/transport flow. 

SUNDAY 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. 

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

Prepared by Michael Richmond Northern Rockies Met