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Aug. 11 Air Quality Report for Rail Fire -- Weather and Smoke Synopsis

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A little warmer and drier today as high pressure builds across the region.  Mixing heights increase a little today and somewhat higher on Friday, then reaching a peak on Saturday.  Winds will be variable becoming northwest 3-7 mph around 4:00pm.  Surface inversion will lift around 10:00 am.  Fire behavior will increase today due to warmer temperatures and lower humidities.  Fire perimeter is approximately 11,503.  Unity will have Unhealthy levels of smoke settling in overnight until the morning, then becoming Moderate levels after 10:00.  Baker City, Burns, John Daly, Prairie City and Vale will have Good smoke levels today. Expect smoke settling in overnight.
Air Quality Outlook
Sites with air quality monitor
Site
Yesterday Observed Midnight-Midnight  
August 10, 2016
Today Forecast  August 11, 2016
Tomorrow Outlook
August 12, 2016
Worse Time of Day Impacts
John Day
Good
Good
Good
Expect Good smoke levels today.  
Baker City
Good
Good
Good
Expect Good smoke levels today with possible hazy skies overnight.
Burns
Good
Good
Good
Expect Good smoke levels today.
Unity
Unhealthy: overnight
Unhealthy: overnight
Unhealthy: overnight
Expect Unhealthy smoke levels from 1:00 am to  10:00 am and then Moderate smoke levels after the inversion lifts.
Good: day-night
Moderate: day-night
Moderate: day-night
Sites without a monitor
Site
Today
Tomorrow
Worse Time of Day Impacts
Prairie City
Good
Good
Expect Good smoke levels today.
Vale
Good
Good
Expect Good smoke levels today with possible hazy skies overnight.
Disclaimer: Conditions may change quickly. These predictions are based on anticipated weather and fire activity. AQI estimates for sites do not represent a full 24-hour time period.  Instead they reflect a period of time within the day where smoke impacts would be greatest.
Air Quality Index (AQI) Levels of Health Concern

ACTIONS TO PROTECT YOURSELF
Good
None
Moderate
Highly smoke sensitive people should consider reducing prolonged or heavy outdoor exertion.
Unhealthy for Sensitive Groups  (USG)
People within Sensitive Groups* should reduce prolonged or heavy outdoor exertion.  Everyone else may find relief by limiting prolonged or heavy outdoor exertion.
Unhealthy
People within Sensitive Groups* should avoid all physical outdoor activity.  Everyone else should avoid prolonged or heavy outdoor exertion.

* Sensitive Groups include those with heart or lung disease, children, pregnant women and                        older adults
                                                                                                                                                               Incident Air Resource Adviser Contact: Ariane Sarzotti (ariane_sarzotti@nps.gov) 

       Find the latest information on air quality here.