INLAND NORTHWEST WILDFIRE SMOKE OUTLOOK

AQI 65-105 is most likely; near-surface smoke signal is high.

ISSUED ·

Overall Confidence

MEDIUM

Dominant SW flow transports air toward NE during midday. The leading ordinal source candidates are Northeastern Washington fire activity, Central Oregon fire activity, Northern Idaho fire activity. Surface smoke likelihood is high and elevated smoke likelihood is high; the most likely AQI range is 65-105. Satellite analysis detected visible smoke over or near the region. Community sensors show a southeast to northwest gradient. The largest uncertainty is all essential forecast components are rated medium or higher, so overall confidence is medium.

REGIONAL SOURCES AND TRANSPORT

INLAND NORTHWEST

FORECAST TIMELINE

WEDNESDAY, JULY 29

Evening / Overnight

WINDS→N · 2 mph · Light
MIXShallow
SFCModerate
ALOFTModerate
AQI 70-105

THURSDAY, JULY 30

Morning

WINDS→N · 2 mph · Light
MIXShallow
SFCModerate
ALOFTModerate
AQI 70-105

Midday

WINDSW→NE · 5 mph · Light
MIXModerate
SFCModerate
ALOFTHigh
AQI 70-110

Late Day

WINDSW→NE · 7 mph · Moderate
MIXDeep
SFCHigh
ALOFTHigh
AQI 80-120

Evening / Overnight

WINDS→N · 4 mph · Light
MIXShallow
SFCModerate
ALOFTModerate
AQI 70-115

FRIDAY, JULY 31

Morning

WINDS→N · 3 mph · Light
MIXShallow
SFCModerate
ALOFTLow
AQI 60-105

Midday

WINDSW→NE · 4 mph · Light
MIXModerate
SFCModerate
ALOFTLow
AQI 60-105

Late Day

WINDSW→NE · 4 mph · Light
MIXDeep
SFCModerate
ALOFTModerate
AQI 65-110

Evening / Overnight

WINDSW→NE · 3 mph · Light
MIXLimited
SFCHigh
ALOFTHigh
AQI 75-120

SOURCE POTENTIAL

  1. 1 Northeastern Washington fire activity High (Regional aggregate)
  2. 2 Central Oregon fire activity High (Regional aggregate)
  3. 3 Northern Idaho fire activity High (Regional aggregate)
  4. 4 Bench High (Verified) Very Active · report 12h old — Operational report notes torching and long range spotting; activity increased from the prior report.
  5. 5 BRADEEN HILL High (Verified) Active · report 12h old — Operational report notes torching and backing.

Ordinal source potential — not percentage contribution.