Information for October 24, 2014

Burn Recommendations  latest update: 10/23/2014 15:31

MONTANA

No restrictions.

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: 10/24/2014 07:39

FRIDAY, October 24 Discussion

GOOD smoke dispersion conditions will occur today as a weak warm front moves north over ID and W MT in th afternoon. Mixing behind the front should allow for good ventillation. Transport wind flow will be from the SW at the 10,000 foot level. Surface winds will generally be from the E ahead of the northward moving front and then become from the SSW behind the front in the afternoon. S ID will see the wind shift early in the day whereas Central ID and SW MT will see the shift during the mid-afternoon hours. Scattered showers will accompany the front.

 

GOOD to EXCELLENT smoke dispersion conditions are expected on Saturday as a slightly warmer and unstable SW flow develops over ID and MT. Isolated showers will be possible in the afternoon over higher terrain along with breezy SW winds west of the Divide and S to SE east of the Divide. Temperatures will be 5-10 degrees above normal.

 

Extended outlook:

GOOD to EXCELLENT smoke dipsersion conditions are expected on Sunday as a breezy and somewhat moist W flow develops over ID and MT with a low pressure trough. Scattered showers are expected across ID and W MT through the day with snow levels falling to 4000 ft. north to 5000 ft. south. Temperatures on Sunday will be about 10-15 degrees cooler than Saturday's. No significant dispersion-related concerns are expected.

 

GOOD to EXCELLENT smoke dispersion conditions are expected to continue into Monday as W flow remains in place over the region. Isolated showers will remain possible in the afternoon across W MT and N ID. Some shower activity is expected along the WY state line as well. Temperatures will be near to slightly below normal.

 

GOOD to EXCELLENT smoke dispersion conditions are expected to continue as well into Tuesday. A low pressure trough in overall westerly flow will bring S to SW surface winds and SW-W transport wind flow in the afternoon...to mix airsheds out. Widespread rain will develop by late afternoon in ID and western MT...with snow levels 5000-6000 ft and slightly above average temperatures.  

For a multimedia web briefing clink on this link. Under NRCC Weather Products, click on the multimedia web briefing link.

 

Friday, October 24 Dispersion Forecast

MONTANA

Northwest (AS 1, 2):  GOOD.

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

Southwest(AS 7, 8A, 8B): GOOD.

Eastern Montana (AS 9 and 10): GOOD.

 

IDAHO:

North (AS 11): GOOD.

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

West Central (AS 14, 15, 21A): GOOD.

East Central (AS 16, 17): GOOD.

Northeast (AS 18, 19): GOOD.

Southeast (AS 20): GOOD.

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

 

Prepared by Michael Richmond, Northern Rockies Met


Forecast for

Burn Recommendations  latest update: 10/24/2014 15:17

MONTANA

No restrictions.

IDAHO

No restrictions.


Meteorology/Dispersion Discussion  latest update: 10/23/2014 07:28

SATURDAY, October 25 Discussion

GOOD to EXCELLENT smoke dispersion conditions are expected on Saturday as a slightly warmer and unstable SW flow develops over ID and MT. Isolated showers will be possible in the afternoon along with breezy SW winds. Temperatures will be 5-10 degrees above normal.


Extended outlook: 

GOOD to EXCELLENT smoke dipsersion conditions are expected on Sunday as a breezy and somewhat moist W flow develops over ID and MT. Scattered showers are expected across ID and W MT through the day. Temperatures on Sunday will be about 5 degrees cooler than Saturday's. No significant dispersion-related concerns are expected.

 

GOOD to EXCELLENT smoke dispersion conditions are expected to continue into Monday as W flow remains in place over the region. Isolated showers will remain possible in the afternoon across W MT and N ID. Some shower activity is expected along the WY state line as well. Temperatures will be near normal.

 

GOOD to EXCELLENT smoke dispersion conditions are expected on Tuesday as the Westerly flow intensifies over the region and ushers the next system into the region. Look for widespread precipitation to move into ID by early afternoon and into W MT by mid-late afternoon. Significant snowfall might be possible in the higher elevations of ID beginning late in the day with this system.

 

For a multimedia web briefing clink on this link. Under NRCC Weather Products, click on the multimedia web briefing link.

 

Saturday, October 25 Dispersion Forecast

MONTANA

Northwest (AS 1, 2):  GOOD to EXCELLENT.

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

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

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

 

IDAHO:

North (AS 11): GOOD to EXCELLENT.

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

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

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

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

Southeast (AS 20): GOOD to EXCELLENT.

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

 

Prepared by Bryan Henry, Northern Rockies Met