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Montana |
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November 30, 2009
***UPDATE***UPDATE***UPDATE***
Airsheds west of the Continental Divide (1, 2, 3A, 3B, 4 and 5) are restricted. No other restrictions. This will be the last restrictions message for the fall 2009 burn season. Thanks to all for a successful season.
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Idaho |
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November 30, 2009
No restrictions. This will be the last 'no restrictions' message for the fall 2009 burn season. Thanks to all for a successful season.
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November 30, 2009
MONDAY, November 30 Discussion
Monday looks to be a better day in most areas for smoke dispersion, though it still won't be all that great. The ridge from Sunday will flatten out over MT and N ID (North of the Salmon River corridor) and a very weak disturbance will move east across the area during the afternoon. The slightly strengthening Westerly flow combined with the very weak disturbance should allow for mostly GOOD dispersion to develop by mid day. Precip is not expected with the passage of the disturbance. Southern ID will remain under the influence of the ridge...so POOR to MODERATE conditions will linger over those areas.
Looking ahead...it looks like a persistent ridge scenario (R.o.D.) may develop Tuesday-Friday as the ridge rebuilds along the ID-OR/WA statelines. This will promote very stable conditions and POOR dispersion across all of ID and extreme W MT. Areas along and east of the divide will be under a NW flow which may promote GOOD dispersion in the higher terrain though.
Monday, November 30 - DISPERSION Forecast
MONTANA
Northwest (AS 1, 2): POOR in the early morning...becoming GOOD after 1200...watch impact zones.
West Central (AS 3A, 3B, 4, 5, 6): POOR in the early morning...becoming GOOD after 1200...watch impact zones.
Southwest(AS 7, 8A, 8B): POOR in the early morning...becoming GOOD after 1200...watch impact zones.
Eastern Montana (AS 9 and 10): GOOD.
IDAHO:
North (AS 11): POOR in the early morning...becoming GOOD after 1200...watch impact zones.
North Central (AS 12A, 12B, 13):POOR in the early morning...becoming GOOD after 1200...watch impact zones.
West Central (AS 14, 15, 21A): POOR in the early morning...becoming GOOD after 1200.
East Central (AS 16, 17):POOR to MODERATE.
Northeast (AS 18, 19): POOR.
Southeast (AS 20): POOR.
Southwest (AS 21B, 22, 23, 24, 25): POOR.
Prepared by Bryan Henry, Northern Rockies Met
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