55 µg/m³ measured at Golden Helipad, 0 km away, at Aug 06, 11:00AM. The NowCast smoke average is 52 µg/m³ — Unhealthy for Sensitive Groups on the US EPA scale.
Sensitive groups — children, seniors, and people with heart or lung conditions — should reduce prolonged outdoor exertion.
Forecasts show smoke increasing, peaking near 427 µg/m³ within the next 48 hours.
Smoke is likely to persist beyond the next 48 hours.
● Observed (hourly) · ● FireSmoke · ● FireWork · ● HRRR
Background bands (US EPA AQI, 24-h basis): ■ Good · ■ Moderate · ■ Unhealthy for Sensitive Groups · ■ Unhealthy · ■ Very Unhealthy · ■ Hazardous
| Model | Peak PM2.5 | Peak around |
|---|---|---|
| FireSmoke (UBC BlueSky) | 47 µg/m³ | Aug 07, 8:00AM |
| FireWork (ECCC) | 79 µg/m³ | Aug 07, 11:00AM |
| HRRR-Smoke (NOAA, 3 km) | 5 µg/m³ | Aug 06, 10:00PM |
Model values are for the ~10 km grid cell nearest Golden; the two models are independent and often disagree — treat the higher value as the cautious planning number.
Observations and NowCast are total PM2.5 — wildfire smoke plus every other source — as regulatory monitors measure it, and FireWork models that same total. FireSmoke is a smoke-dispersion model: it estimates the wildfire contribution only, so it reads lower than the monitors whenever other sources matter. The map's optional plume layer is likewise fires-only.
Little smoke at the surface or overhead.
● At the ground · ● Overhead (if mixed down)
Overhead smoke dims the sun but is not what you breathe. The dashed line shows the surface level if the whole column mixed through the boundary layer — a worst case, not a forecast · Data: NOAA HRRR-Smoke
19-day record · 1 nearby monitors
| Model | Typical error | Tendency |
|---|---|---|
| FireWork | 19.3 µg/m³ | reads low 18.8 |
| FireSmoke | 57.6 µg/m³ | reads high 33.9 |
Mean absolute error and average tendency in µg/m³, from forecasts verified 0–6 hours ahead at monitors within 50 km. A short-range record, not a measure of how far ahead a model stays reliable. FireSmoke and HRRR model wildfire smoke only, so they read below the monitors whenever other sources of PM2.5 matter.
Open the live chart for Golden Helipad — hourly observations, NowCast and both model forecasts.
See the British Columbia-wide forecast — every monitor, ranked →
More in British Columbia: Vancouver Metro Northwest · Vancouver Metro Southwest · Vancouver Metro Northeast · Vancouver Metro Southeast · Central Fraser Valley · Eastern Fraser Valley · Victoria · Kelowna · Prince George · Kamloops · Penticton · Vernon · Castlegar