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Montana, Central and Southern Lewis and Clark

Air Quality Alert

Statement as of 9:00 AM MDT on August 19, 2017

Expires 11:00 AM EDT on August 20, 2017


... Air quality alert in effect until 900am MDT Sunday...

The Montana department of environmental quality has issued an air
quality alert for Broadwater, Deer Lodge, Gallatin, Granite,
Jefferson, Lewis And Clark, Mineral, Missoula, Powell, Ravalli, and
Silver Bow counties in effect until further notice due to increased
fire activity in west-central Montana. Air quality is expected to
vary between moderate and unhealthy throughout the day. Impacts are
most significant in the Seeley Lake area. Smoke from the Rice Ridge
fire is causing hazardous air quality impacts between midnight and
noon. The Missoula city-County health department recommends residents
spend as little night time as possible in Seeley Lake due to the
dangerous overnight pollution levels. This alert will be updated
again at 900am 8/20/2017.

An air quality alert means that particulates have been trending
upwards and that an exceedence of the 24 hour National ambient air
quality Standard (naaqs) has occurred or may occur in the near
future.

As of 900am, particulate levels in Seeley Lake are hazardous

As of 900am, particulate levels in Florence, Helena, and Rock Creek
are unhealthy

As of 900am, particulate levels in Drummond, Hamilton, and
Philipsburg are unhealthy for sensitive groups

As of 900am, particulate levels in Arlee, Bozeman, Butte, Frenchtown,
Missoula, and Superior are moderate

When air quality is hazardous... state and local health officials
recommend that everyone should avoid any outdoor exertion; people
with respiratory or heart disease, the elderly, and children should
remain indoors.

When air quality is unhealthy... state and local health officials
recommend that people with respiratory or heart disease, the elderly,
and children should avoid prolonged exertion; everyone else should
limit prolonged exertion.

When air quality is unhealthy for sensitive groups... state and local
health officials recommend that people with respiratory or heart
disease, the elderly and children should limit prolonged exertion.

When air quality is moderate... state and local health officials
recommend that unusually sensitive people should consider reducing
prolonged or heavy exertion.

For more information visit the Montana department of environmental
quality at www.Todaysair.Mt.Gov




Fire Weather Warning

Statement as of 6:05 AM MDT on August 19, 2017

Expires 11:00 PM EDT on August 19, 2017


... Red flag warning remains in effect from noon today to 9 PM MDT
this evening...

* impacts: low humidities and gusty winds will create erratic fire
behavior and an increased risk of new fire starts this afternoon
into this evening.

* Affected area:
in southwest Montana, fire weather zone 116.

* Counties affected:
in central Montana, Lewis And Clark.
In southwest Montana, Jefferson.

* Wind: west 10 to 20 mph with gusts up to 30 mph this afternoon
into early this evening.

* Humidity: as low as 15 percent this afternoon into early this
evening.

* Temperatures: in the upper 60s to lower 70s.

Precautionary/preparedness actions...

A red flag warning means that critical fire weather conditions are
either occurring now, or will shortly. A combination of
strong winds, low relative humidity, and warm temperatures can
contribute to extreme fire behavior.

Please advise the appropriate officials or fire crews in these
areas of this red flag warning.






532 am MDT Sat Aug 19 2017

... Red flag warning remains in effect from noon today to 9 PM MDT
this evening...
... Red flag warning will expire at 6 am MDT early this morning...

* affected area: fire zone 108 (east lolo). Fire zone 109
(bitterroot).

* Impacts: a dry cold front will stall over the area today,
bringing breezy and dry conditions, starting late morning on
the ridges and transitioning into the lower elevations by
early afternoon.

* Winds: west 15 to 20 mph with gusts to 30 mph through exposed
areas.

* Minimum humidities: 12 to 20 percent.






532 am MDT Sat Aug 19 2017

... Red flag warning remains in effect until 9 PM MDT this
evening...

* affected area: fire zone 110 (deerlodge/west beaverhead).

* Impacts/timing: a dry cold front will stall across the area
today, keeping dry and gusty conditions persisting.

* Winds: west winds 15 to 20 mph with gusts to 30 mph through
exposed areas.

* Minimum humidities: 8 to 18 percent.





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