Smoke Outlook
Northern Central Valley - August Complex
9/26 - 9/27
Issued: 2020-09-26 08:03 (PDT)
By: Jeremy Michael (jeremy.michael@noaa.gov)
Special Statement
A Red Flag Warning for strong gusty winds and low relative humidity in effect Sunday morning through Monday afternoon.
Fire
The August Complex continues to actively burn, both along the perimeter and in large interior pockets. Most activity is seen on the north–northwestern edge of the fire and along the western flank. Fire activity will remain high as fuels remain critical with increasingly hot, dry, and windy conditions.
The August Complex continues to actively burn, both along the perimeter and in large interior pockets. Most activity is seen on the north–northwestern edge of the fire and along the western flank. Fire activity will remain high as fuels remain critical with increasingly hot, dry, and windy conditions.
Smoke
Winds switch from northwest to north and eventually northeast into Sunday. This will be accompanied by gusty winds. Hot and dry conditions will develop on the heels of this pattern change. This will lead to an increase in smoke production and allow smoke from other fires to move into the region.

Due to the elevated winds across the ridges, smoke may not settle into valleys as it typically does. However by late weekend and into next week, high pressure will create a stagnant pattern allowing for worsening air quality.

Winds switch from northwest to north and eventually northeast into Sunday. This will be accompanied by gusty winds. Hot and dry conditions will develop on the heels of this pattern change. This will lead to an increase in smoke production and allow smoke from other fires to move into the region.

Due to the elevated winds across the ridges, smoke may not settle into valleys as it typically does. However by late weekend and into next week, high pressure will create a stagnant pattern allowing for worsening air quality.

Chico
Forecast For:
Saturday
9/26/20
Overall AQI: Moderate
Sunday
9/27/20
Overall AQI: Moderate
Moderate with periods of USG, especially tonight/tomorrow morning.
Recent Observations:
Corning
Forecast For:
Saturday
9/26/20
Overall AQI: Moderate
Sunday
9/27/20
Overall AQI: Moderate
Periods of Moderate air throughout the day.
Recent Observations:
Hayfork
Forecast For:
Saturday
9/26/20
Overall AQI: Good
Sunday
9/27/20
Overall AQI: Good
Generally good air quality today.
Recent Observations:
Orland
Forecast For:
Saturday
9/26/20
Overall AQI: Good
Sunday
9/27/20
Overall AQI: Good
Moderate air in the morning; generally good air the rest of today.
Recent Observations:
Red Bluff
Forecast For:
Saturday
9/26/20
Overall AQI: Good
Sunday
9/27/20
Overall AQI: Good
Moderate air in the morning; generally good air the rest of today.
Recent Observations:
Redding
Forecast For:
Saturday
9/26/20
Overall AQI: Good
Sunday
9/27/20
Overall AQI: Good
Moderate air in the morning; generally good air the rest of today.
Recent Observations:
Sacramento
Forecast For:
Saturday
9/26/20
Overall AQI: Good
Sunday
9/27/20
Overall AQI: Moderate
Generally Good with brief periods of Moderate in the morning and night.
Recent Observations:
Ukiah
Forecast For:
Saturday
9/26/20
Overall AQI: Moderate
Sunday
9/27/20
Overall AQI: Unhealthy for Sensitive Groups
Good most of the day; worsening air tonight into tomorrow morning.
Recent Observations:
Weaverville
Forecast For:
Saturday
9/26/20
Overall AQI: Good
Sunday
9/27/20
Overall AQI: Good
Generally good air quality today.
Recent Observations:
Williams-Colusa
Forecast For:
Saturday
9/26/20
Overall AQI: Moderate
Sunday
9/27/20
Overall AQI: Moderate
Periods of Moderate air throughout the day.
Recent Observations:
Willits
Forecast For:
Saturday
9/26/20
Overall AQI: Moderate
Sunday
9/27/20
Overall AQI: Unhealthy for Sensitive Groups
Good most of the day; worsening air tonight into tomorrow morning.
Recent Observations:
Willows
Forecast For:
Saturday
9/26/20
Overall AQI: Moderate
Sunday
9/27/20
Overall AQI: Moderate
Periods of Moderate air throughout the day.
Recent Observations:
Yuba City
Forecast For:
Saturday
9/26/20
Overall AQI: Good
Sunday
9/27/20
Overall AQI: Moderate
Generally Good with brief periods of Moderate in the morning and night.
Recent Observations:
Air Quality Index (AQI) Actions to Protect Yourself
Good None
Moderate Unusually sensitive individuals should consider limiting prolonged or heavy exertion.
USG People within Sensitive Groups* should reduce prolonged or heavy outdoor exertion.
Unhealthy People within Sensitive Groups* should avoid all physical outdoor activity.
Very Unhealthy Everyone should avoid prolonged or heavy exertion.
Hazardous Everyone should avoid any outdoor activity.
*Disclaimer: This forecast is based on fine particulates only; ozone is not included. Forecasts may be wrong; use at own risk. Use caution as conditions can change quickly. See your health professional as needed. Smoke sensitive groups should take appropriate precautions.
Issued by the US Interagency Wildland Fire Air Quality Response Program -- www.wildlandfiresmoke.net
Northern Central Valley Current Outlook -- fires.airfire.org/outlooks//NorthernCentralValley