Information for May 24, 2017

Burn Recommendations  latest update: 05/23/2017 13:35

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: 05/24/2017 06:56

Strong but compact upper low is sliding east just north across the Canadian border. The cold front with it will have strong westerly winds today over all ID and MT. Gusts 50-60 mph are possible west of the Divide exposed terrain. High Wind Warnings today/early tonight in N-Central to NE MT for gusts to 80 mph along the Rocky Mtn. Front and 65 mph out onto the plains. An NWS Red Flag Warning is also in effect far NE MT in airshed 9 today for strong winds/low RH. Less windy conditions with scattered showers/wet storms tomorrow/Friday West of the Divide, then drying and warming beginning Sunday as ridging returns. Most limited dispersion western airsheds will be Sunday/Monday, but generally still good. 
WEDNESDAY MARCH 24 DISCUSSION:
GOOD-EXCELLENT dispersion ID and Western MT Today behind cold front. Cooler and windy. Scattered showers far N ID and higher terrain Western MT. Westerly surface/transport flow. GOOD-EXCELLENT dispersion Central and Eastern MT and very windy. Westerly surface/transport flow. Scattered showers/isolated wet storms Eastern MT. 
GOOD-EXCELLENT dispersion ID and Western MT Thursday under low pressure trough. Light west-northwest surface/transport flow. Scattered showers and wet storms. GOOD-EXCELLENT dispersion Central and Eastern MT with northwesterly surface/transport flow. Scattered showers/wet storms mainly Central MT. 
GOOD-EXCELLENT dispersion ID and Western MT Friday under northerly flow aloft. Light west-northwest surface/transport flow. Scattered showers and wet storms. GOOD-EXCELLENT dispersion Central and Eastern MT with northwesterly surface/transport flow. Scattered showers/wet storms mainly Central MT. 
GOOD-EXCELLENT dispersion ID and Western MT Saturday under light northerly flow aloft. Light northwest-north surface/transport flow. Scattered showers and wet storms mainly higher terrain. GOOD-EXCELLENT dispersion Central and Eastern MT with northwesterly surface/transport flow. Scattered showers/wet storms.
GOOD dispersion ID and Western MT Sunday under high pressure ridging but with strong sushine/surface heating. Light north-east surface/transport flow. Isolated showers/wet storms. GOOD-EXCELLENT dispersion Central and Eastern MT with northwest-north surface/transport flow. Scattered showers/wet storms mainly Eastern MT. 
GOOD dispersion ID and Western MT Monday under high pressure ridging but with strong sushine/surface heating. Light north-east surface/transport flow. Isolated showers/wet storms. GOOD-EXCELLENT dispersion Central and Eastern MT with northeast-east surface/transport flow. 
Thursday 25 May 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


Forecast for

Burn Recommendations  latest update: 05/24/2017 15:40

MONTANA

No restrictions.

IDAHO

No restrictions.


Meteorology/Dispersion Discussion  latest update: 05/24/2017 07:07

THURSDAY MARCH 25 DISCUSSION:
GOOD-EXCELLENT dispersion ID and Western MT Today under low pressure trough. Light west-northwest surface/transport flow. Scattered showers and wet storms. GOOD-EXCELLENT dispersion Central and Eastern MT with northwesterly surface/transport flow. Scattered showers/wet storms mainly Central MT. 
GOOD-EXCELLENT dispersion ID and Western MT Friday under northerly flow aloft. Light west-northwest surface/transport flow. Scattered showers and wet storms. GOOD-EXCELLENT dispersion Central and Eastern MT with northwesterly surface/transport flow. Scattered showers/wet storms mainly Central MT. 
GOOD-EXCELLENT dispersion ID and Western MT Saturday under light northerly flow aloft. Light northwest-north surface/transport flow. Scattered showers and wet storms mainly higher terrain. GOOD-EXCELLENT dispersion Central and Eastern MT with northwesterly surface/transport flow. Scattered showers/wet storms.
GOOD dispersion ID and Western MT Sunday under high pressure ridging but with strong sushine/surface heating. Light north-east surface/transport flow. Isolated showers/wet storms. GOOD-EXCELLENT dispersion Central and Eastern MT with northwest-north surface/transport flow. Scattered showers/wet storms mainly Eastern MT. 
GOOD dispersion ID and Western MT Monday under high pressure ridging but with strong sushine/surface heating. Light north-east surface/transport flow. Isolated showers/wet storms. GOOD-EXCELLENT dispersion Central and Eastern MT with northeast-east surface/transport flow. 
Friday 26 May 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