WildfireSmokeCanada

Fort Smith

Hourly regulatory PM2.5 observations from Government of the Northwest Territories.

Northwest Territories · 60.0045, -111.8934 · Updated Sep 02, 2026, 3:57AM MDT · Regulatory monitor
3.1Latest hourly PM2.5 · µg/m³Sep 02, 2:00AM MDT · Preliminary observation
3.512-hour NowCast · µg/m³Good
GoodModel peak · next 24 h2–6 µg/m³ · 2 models available
1AQHI
AQHI context

What this monitor reports

The latest hourly PM2.5 reading is 3.1 µg/m³. The 12-hour NowCast is 3.5 µg/m³ (Good).

The monitor belongs to Government of the Northwest Territories. Real-time readings are preliminary and may be revised.

The air-quality category applies to the NowCast, not to a single hourly reading. Methodology and source policy.

Nearby fires

150 km radius

Fire snapshot updated 2026-09-02 09:50 UTC

Within 150 km, agencies report 7 Out of control · 5 Being held · 10 Under control.

Out of control7 fires
SS021-26
99 km away · 1415 ha · reported 2026-09-02 · NT
distance measured to the incident point
Out of control
SS045-26
100 km away · 10 ha · reported 2026-09-02 · NT
distance measured to the incident point
Out of control
SS016-26
103 km away · 8160 ha · reported 2026-09-02 · NT
distance measured to the incident point
Out of control
SS017-26
125 km away · 0.5 ha · reported 2026-09-02 · NT
distance measured to the incident point
Out of control
SS022-26
132 km away · 3960 ha · reported 2026-09-02 · NT
distance measured to the incident point
Out of control
SS054-26
133 km away · 2646 ha · reported 2026-09-02 · NT
distance measured to the incident point
Out of control
2026WB24
146 km away · 207 ha · reported 2026-08-23 · PC
distance measured to the incident point
Out of control
Being held5 fires
2026WB20
55 km away · 11769 ha · reported 2026-06-26 · PC
distance measured to the incident point
Being held
2026WB19
83 km away · 22238 ha · reported 2026-06-25 · PC
distance measured to the incident point
Being held
SS004-26
88 km away · 737 ha · reported 2026-09-02 · NT
distance measured to the incident point
Being held
2026WB14
107 km away · 2405 ha · reported 2026-06-28 · PC
distance measured to the incident point
Being held
2026WB17
114 km away · 14855 ha · reported 2026-06-25 · PC
distance measured to the incident point
Being held
Under control10 fires
SS057-26
20 km away · 0.2 ha · reported 2026-09-02 · NT
distance measured to the incident point
Under control
2026WB4
78 km away · 51780 ha · reported 2026-05-31 · PC
distance measured to the incident point
Under control
2026WB3
80 km away · 2.2 ha · reported 2026-05-21 · PC
distance measured to the incident point
Under control
2026WB22
89 km away · 1.5 ha · reported 2026-07-12 · PC
distance measured to the incident point
Under control
2026WB9
90 km away · 760 ha · reported 2026-05-30 · PC
distance measured to the incident point
Under control
2026WB6
105 km away · 659 ha · reported 2026-05-28 · PC
distance measured to the incident point
Under control
2026WB7
126 km away · 42 ha · reported 2026-05-30 · PC
distance measured to the incident point
Under control
2026WB8
128 km away · 1357 ha · reported 2026-05-30 · PC
distance measured to the incident point
Under control
SS052-26
141 km away · 13 ha · reported 2026-09-02 · NT
distance measured to the incident point
Under control
SS046-26
145 km away · 63 ha · reported 2026-09-02 · NT
distance measured to the incident point
Under control

Proximity and wind direction do not prove that a fire caused smoke at this location. Sources: BC Wildfire Service in British Columbia; Natural Resources Canada CWFIS elsewhere.

Recent observations and next 48 hours

monitor + up to three models
20100now−24 h+24 h+48 hµg/m³
HRRR — no coverage

Background bands (US EPA AQI, 24-h basis): ■ Good · ■ Moderate

Forecast at this monitor

NEXT 6 HOURS
Good
0–1 µg/m³ · Sep 02, 10:00AM
NEXT 12 HOURS
Good
2 µg/m³ · Sep 02, 4:00PM
NEXT 24 HOURS
Good
2–6 µg/m³ · Sep 02, 9:00PM
NEXT 48 HOURS
Good
2–6 µg/m³ · Sep 02, 9:00PM
Model detail2 models available · 48-hour peak table
ModelPeakTime
FireSmoke2.2 µg/m³Sep 02, 8:00PM
FireWork5.9 µg/m³Sep 02, 9:00PM

Nearby regulatory monitors

in the same province or territory
Wood Buffalo Park6.0 µg/m³ PM2.598 km away · Canadian Air and Precipitation Monitoring NetworkYellowknife2.6 µg/m³ PM2.5303 km away · Government of the Northwest TerritoriesNiven Lake 12.0 µg/m³ PM2.5304 km away · Giant Mine Remediation ProjectN'Dilo 16.0 µg/m³ PM2.5304 km away · Giant Mine Remediation ProjectMarina 1 (GSSC)3.0 µg/m³ PM2.5306 km away · Giant Mine Remediation ProjectNorman Wells5.4 µg/m³ PM2.5958 km away · Government of the Northwest Territories

Source and data quality

Regulatory monitor

Hourly observations are supplied by Government of the Northwest Territories. Real-time data are preliminary and may be revised by the agency.

For information only — not a substitute for official health or emergency advice. Methodology and source policy.