Burned area
satellite only27,986ha
Perimeter published by NBAC (NRCan).
- Source
- NBAC (NRCan)
- Date
- 30 Jun 2021 – 16 Nov 2021
+− cross-check
No official record is matched to this page to compare it with.
CA · Canada · –
Bulkley-Nechako D fire, June 2021 Bulkley-Nechako D, Bulkley-Nechako F
Out · last detection 16 Nov 2021, 11:46 UTC
The fire started on 30 June 2021 in Bulkley-Nechako D, Canada, and satellites saw it burning for 140 days. Canada’s CWFIS (Natural Resources Canada) mapped an official burnt perimeter of 27,986 hectares from satellite imagery, spread across 2 census subdivisions.
It is the 36th largest in British Columbia since 2016 (of 343 with a page). Number 21 in Canada in 2021, of 304.
Use this data
Compare with…
Use this data
Fire page data · version 2026-10-24matches the official recordwith caveatssatellite onlymodel
When copying, the sentence is
Tick the figures you want: they make up the lede and the CSV.
Duration by satellite
satellite only140days
30 Jun 2021 to 16 Nov 2021: first and last day with fire on the page.
- Source
- NBAC (NRCan) · NASA FIRMS · VIIRS
- Date
- last detection: 16 Nov 2021, 11:46 UTC
+− cross-check
Satellites pass a few times a day and cloud or smoke can hide the fire: a lack of detections is not an official extinction. Each country’s emergency service declares a fire contained or out.
Start
satellite only30 Jun 2021
First day with fire seen by the satellites or the perimeter.
- Source
- NBAC (NRCan) · NASA FIRMS · VIIRS
- Date
- 30 Jun 2021
+− cross-check
No official record is matched to this page, so the alert time and the cause are not known here.
Hotspots
satellite only4,430
VIIRS detections at 375 m. Most intense hotspot: 367 MW.
- Source
- NASA FIRMS · VIIRS (Suomi NPP)
- Date
- 30 Jun 2021 – 16 Nov 2021
+− cross-check
There is no official record to compare with. Each hotspot is a pixel detected in one satellite pass, not a separate fire.
The worst day
satellite only12,977MW
Total radiative power on 8 July 2021; hotspots that day: 583.
- Source
- NASA FIRMS · VIIRS (FRP)
- Date
- 8 Jul 2021
+− cross-check
Fire radiative power (FRP) measures the energy the fire gives off when the satellite passes. Added up by day, it compares intensity, not area.
Danger at the start
model26.7FWI · high
Fire Weather Index (Canadian system) computed by WorldFires for the day the fire started. Consecutive days without rain before: 6.
- Source
- WorldFires calculation (Canadian FWI system)
- Date
- 30 Jun 2021, local noon
- Model
- ERA5 0,25° (ECMWF · Copernicus C3S) · Open-Meteo.com
+− cross-check
This is an index computed from weather model data, not a measurement of the fire nor an official warning. Danger warnings are issued by each country’s authority. Emergency number and official warnings
Weather during the fire
model29.8°C · 23% RH
High of 29.8 °C and minimum humidity of 23% on 13 August 2021; gusts of 74 km/h on 27 October 2021.
- Source
- weather model at the fire’s grid cell
- Date
- 30 Jun 2021 – 16 Nov 2021
- Model
- ERA5 0,25° (ECMWF · Copernicus C3S) · Open-Meteo.com
+− cross-check
These are model values for a cell of about 25 km, not from a weather station: they may differ from what was measured on the ground.
This page’s change log has been kept since 24 October 2026: every night what it publishes is compared and the difference is logged. Anything earlier is reconstructed from each source’s date and marked as reconstructed.
Show
-
· reconstructed weatherWeather and FWI computed from the ERA5 reanalysis
-
· reconstructed GHSLPopulation and built-up area computed
What was saved on 24 October 2026
Every night a snapshot of what the page shows is saved. If anything changes, it appears in the list as a log entry.
- Area
- 27,986 ha
- Dates
- 30 Jun 2021 – 16 Nov 2021
- Name
- Bulkley-Nechako D
- Official record
- —
Versioned permanent link
https://worldfires.org/en/fire/bulkley-nechako-d-2021-06?v=2026-10-24A version keeps the area, dates, name and official record; the area as it was logged (changes under 2% are not logged). The map, hotspots and weather always show today’s data.
Citation
A lede of about 60 words figures only, no adjectives
CSV for this fire bulkley-nechako-d-2021-06.csv · daily, no individual hotspots
| fecha | focos_viirs | frp_mw | tmax_c | tmin_c | hr_min_pct | viento_max_kmh | racha_max_kmh | precip_mm | fwi | clase_fwi | dentro_del_incendio |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021-06-30 | 0 | 0 | 28.8 | 17.3 | 38 | 16.1 | 41 | 0 | 26.7 | alto | 1 |
| 2021-07-01 | 0 | 0 | 26.3 | 13.7 | 19 | 15.4 | 38.5 | 0.4 | 28.4 | alto | 1 |
| 2021-07-02 | 3 | 167 | 23.2 | 8.7 | 28 | 14.8 | 40.3 | 0 | 29.7 | alto | 1 |
| 2021-07-03 | 28 | 136 | 22.5 | 10.5 | 39 | 12.1 | 32.8 | 0 | 23.4 | alto | 1 |
| 2021-07-04 | 9 | 393 | 23 | 11 | 38 | 10.6 | 31.7 | 0.2 | 23.3 | alto | 1 |
| 2021-07-05 | 147 | 2,897 | 24.4 | 9.2 | 27 | 9.5 | 29.9 | 0 | 25 | alto | 1 |
| 2021-07-06 | 131 | 1,641 | 26.8 | 9.3 | 22 | 6.7 | 20.5 | 0 | 25.8 | alto | 1 |
| 2021-07-07 | 91 | 1,543 | 27.8 | 9.9 | 25 | 16.9 | 37.4 | 0 | 27.3 | alto | 1 |
| 2021-07-08 | 583 | 12,977 | 25.8 | 10.3 | 27 | 13.4 | 32.8 | 0 | 29.1 | alto | 1 |
| 2021-07-09 | 537 | 7,364 | 26.3 | 10 | 32 | 10.4 | 22.3 | 2.3 | 26 | alto | 1 |
| 2021-07-10 | 98 | 2,821 | 22 | 12.1 | 37 | 18.4 | 56.2 | 0.7 | 12.8 | moderado | 1 |
| 2021-07-11 | 227 | 1,878 | 23.4 | 8.5 | 30 | 9.8 | 28.1 | 0 | 19 | moderado | 1 |
| 2021-07-12 | 186 | 2,392 | 27 | 7 | 25 | 7.8 | 21.6 | 0 | 22 | alto | 1 |
| 2021-07-13 | 130 | 1,133 | 28.1 | 10.5 | 22 | 14.1 | 32.8 | 0 | 26 | alto | 1 |
| 2021-07-14 | 772 | 11,143 | 24 | 10.7 | 25 | 15.1 | 38.2 | 0 | 34 | alto | 1 |
| 2021-07-15 | 131 | 1,467 | 20.2 | 11.2 | 35 | 11.5 | 34.2 | 0.1 | 32.8 | alto | 1 |
| 2021-07-16 | 21 | 77 | 17.8 | 10.3 | 58 | 9 | 30.2 | 9.3 | 1.9 | muy_bajo | 1 |
| 2021-07-17 | 0 | 0 | 16.9 | 8.7 | 55 | 6.9 | 28.4 | 11.5 | 0.4 | muy_bajo | 1 |
| 2021-07-18 | 0 | 0 | 17.8 | 9.4 | 50 | 7.3 | 23.4 | 2.4 | 0.1 | muy_bajo | 1 |
| 2021-07-19 | 0 | 0 | 20.5 | 8 | 47 | 11 | 28.8 | 6.5 | 1.9 | muy_bajo | 1 |
| 2021-07-20 | 0 | 0 | 17.4 | 7.6 | 49 | 9.7 | 29.5 | 8.1 | 0.3 | muy_bajo | 1 |
| 2021-07-21 | 0 | 0 | 14.1 | 7 | 49 | 17.3 | 48.6 | 2.2 | 0.3 | muy_bajo | 1 |
| 2021-07-22 | 0 | 0 | 14.2 | 5.5 | 48 | 22.6 | 59 | 0.1 | 3.1 | muy_bajo | 1 |
| 2021-07-23 | 0 | 0 | 16.9 | 4.4 | 52 | 15.7 | 44.3 | 1.2 | 4.2 | muy_bajo | 1 |
| 2021-07-24 | 0 | 0 | 18 | 9 | 46 | 13.7 | 40 | 0.7 | 4.6 | muy_bajo | 1 |
| 2021-07-25 | 0 | 0 | 16.9 | 6.1 | 62 | 7.9 | 37.4 | 2.2 | 0.3 | muy_bajo | 1 |
| 2021-07-26 | 0 | 0 | 17.2 | 6.8 | 49 | 12.6 | 40.7 | 2.8 | 0.6 | muy_bajo | 1 |
| 2021-07-27 | 0 | 0 | 20.7 | 5.9 | 30 | 8.7 | 25.9 | 0 | 3.7 | muy_bajo | 1 |
| 2021-07-28 | 0 | 0 | 23.2 | 7.7 | 39 | 10.9 | 32 | 1.2 | 10.4 | bajo | 1 |
| 2021-07-29 | 0 | 0 | 24.7 | 10.2 | 33 | 7.6 | 16.9 | 0 | 5.4 | bajo | 1 |
| 2021-07-30 | 0 | 0 | 27.4 | 8.6 | 28 | 12.1 | 31.3 | 0 | 16.2 | moderado | 1 |
| 2021-07-31 | 3 | 17 | 29.6 | 10.9 | 28 | 10 | 33.8 | 0.4 | 15.8 | moderado | 1 |
| 2021-08-01 | 20 | 88 | 27.5 | 12.1 | 39 | 9.5 | 24.1 | 0.4 | 17.1 | moderado | 1 |
| 2021-08-02 | 8 | 62 | 26.2 | 13.5 | 31 | 11.3 | 34.6 | 0.8 | 10.5 | bajo | 1 |
| 2021-08-03 | 54 | 127 | 25.7 | 9.1 | 34 | 11.3 | 28.8 | 0 | 16.3 | moderado | 1 |
| 2021-08-04 | 9 | 167 | 27.3 | 9.9 | 35 | 7.8 | 27.7 | 2.4 | 17.6 | moderado | 1 |
| 2021-08-05 | 22 | 27 | 19.1 | 10.8 | 52 | 15.4 | 36.4 | 2.3 | 2.6 | muy_bajo | 1 |
| 2021-08-06 | 5 | 6 | 16.1 | 8.4 | 45 | 18.6 | 45 | 0.3 | 4.3 | muy_bajo | 1 |
| 2021-08-07 | 0 | 0 | 15.9 | 7.9 | 53 | 17.1 | 43.6 | 0.6 | 9.6 | bajo | 1 |
| 2021-08-08 | 2 | 6 | 23.6 | 9 | 35 | 15.5 | 36.4 | 0 | 10.9 | bajo | 1 |
| 2021-08-09 | 0 | 0 | 19.6 | 9.4 | 50 | 22.8 | 58.7 | 0 | 18.8 | moderado | 1 |
| 2021-08-10 | 0 | 0 | 24 | 11.9 | 46 | 25.6 | 64.4 | 0.2 | 18.3 | moderado | 1 |
| 2021-08-11 | 66 | 716 | 22.9 | 11.3 | 28 | 18.2 | 46.8 | 0 | 26.5 | alto | 1 |
| 2021-08-12 | 184 | 3,558 | 27.1 | 9.4 | 29 | 11.4 | 25.6 | 0 | 20.7 | moderado | 1 |
| 2021-08-13 | 344 | 10,465 | 29.8 | 8.8 | 23 | 17.3 | 43.9 | 0 | 32 | alto | 1 |
| 2021-08-14 | 318 | 1,716 | 22.2 | 15.6 | 45 | 27.2 | 63.7 | 1.2 | 35.1 | alto | 1 |
| 2021-08-15 | 36 | 234 | 20.9 | 11.8 | 47 | 26.5 | 65.5 | 0.6 | 21.5 | alto | 1 |
| 2021-08-16 | 36 | 56 | 15.7 | 5.3 | 37 | 14.3 | 37.4 | 0 | 17.1 | moderado | 1 |
| 2021-08-17 | 128 | 1,266 | 20.8 | 4.6 | 30 | 11.5 | 26.6 | 0 | 19.2 | moderado | 1 |
| 2021-08-18 | 0 | 0 | 16.6 | 10.2 | 59 | 19.5 | 50.8 | 0.2 | 20.8 | moderado | 1 |
| 2021-08-19 | 0 | 0 | 18.6 | 9.8 | 47 | 11.6 | 36 | 1.3 | 7.6 | bajo | 1 |
| 2021-08-20 | 0 | 0 | 20 | 8.1 | 37 | 8.7 | 26.6 | 0 | 15.9 | moderado | 1 |
| 2021-08-21 | 34 | 358 | 20.1 | 4.9 | 29 | 17.7 | 46.1 | 2.1 | 23.5 | alto | 1 |
| 2021-08-22 | 37 | 71 | 9.6 | 6.1 | 74 | 14.8 | 37.4 | 8.7 | 0.3 | muy_bajo | 1 |
| 2021-08-23 | 0 | 0 | 13.1 | 4.5 | 53 | 10.4 | 25.9 | 0 | 0.1 | muy_bajo | 1 |
| 2021-08-24 | 0 | 0 | 18.5 | 1.6 | 37 | 7.2 | 19.8 | 0 | 2.4 | muy_bajo | 1 |
| 2021-08-25 | 0 | 0 | 20.1 | 3.5 | 32 | 13.7 | 32 | 0.1 | 10.2 | bajo | 1 |
| 2021-08-26 | 0 | 0 | 14.2 | 9.3 | 70 | 11.6 | 33.8 | 10.4 | 0.1 | muy_bajo | 1 |
| 2021-08-27 | 0 | 0 | 15.2 | 8.3 | 58 | 15.5 | 41.4 | 0.1 | 0.3 | muy_bajo | 1 |
| 2021-08-28 | 0 | 0 | 20.1 | 7.7 | 42 | 18.8 | 54.7 | 1.4 | 2.5 | muy_bajo | 1 |
| 2021-08-29 | 0 | 0 | 14.4 | 5.4 | 38 | 14.8 | 40.7 | 0 | 6.4 | bajo | 1 |
| 2021-08-30 | 0 | 0 | 12.6 | 2.4 | 40 | 12.7 | 29.5 | 0 | 7.4 | bajo | 1 |
| 2021-08-31 | 0 | 0 | 14.1 | 4.6 | 42 | 19.2 | 44.3 | 0 | 11.5 | moderado | 1 |
| 2021-09-01 | 0 | 0 | 16.3 | 4.4 | 38 | 10.7 | 28.4 | 0 | 10.9 | bajo | 1 |
| 2021-09-02 | 1 | 4 | 21 | 0.7 | 25 | 6.8 | 19.1 | 0 | 13 | moderado | 1 |
| 2021-09-03 | 0 | 0 | 15.2 | 4.3 | 51 | 7.6 | 19.4 | 0.8 | 12.2 | moderado | 1 |
| 2021-09-04 | 0 | 0 | 19.8 | 6.9 | 43 | 22 | 58.3 | 2.7 | 5.5 | bajo | 1 |
| 2021-09-05 | 0 | 0 | 15.9 | 9.1 | 41 | 22.1 | 55.1 | 0 | 10.9 | bajo | 1 |
| 2021-09-06 | 0 | 0 | 14.4 | 6.5 | 47 | 15.5 | 39.6 | 0.1 | 11.8 | moderado | 1 |
| 2021-09-07 | 0 | 0 | 21.2 | 7.6 | 37 | 11.9 | 33.1 | 0 | 11.4 | moderado | 1 |
| 2021-09-08 | 0 | 0 | 16.4 | 8 | 55 | 13 | 29.5 | 7.5 | 8.2 | bajo | 1 |
| 2021-09-09 | 0 | 0 | 14.5 | 5.8 | 54 | 8.7 | 22.3 | 0.8 | 0.4 | muy_bajo | 1 |
| 2021-09-10 | 0 | 0 | 18.9 | 5.5 | 42 | 9.5 | 22.7 | 0.1 | 1.2 | muy_bajo | 1 |
| 2021-09-11 | 0 | 0 | 15.4 | 8.1 | 40 | 14 | 37.1 | 0 | 7.3 | bajo | 1 |
| 2021-09-12 | 0 | 0 | 13.2 | 3.7 | 48 | 14.4 | 38.5 | 0.2 | 8.8 | bajo | 1 |
| 2021-09-13 | 0 | 0 | 14.6 | 2.2 | 41 | 14.2 | 34.9 | 0 | 11 | bajo | 1 |
| 2021-09-14 | 0 | 0 | 14.6 | 4.4 | 42 | 23.3 | 60.5 | 4.5 | 3.4 | muy_bajo | 1 |
| 2021-09-15 | 0 | 0 | 9.9 | 1.3 | 47 | 22.5 | 57.6 | 0.6 | 6.5 | bajo | 1 |
| 2021-09-16 | 0 | 0 | 12.6 | -0.6 | 31 | 13.7 | 32.4 | 0.5 | 6.2 | bajo | 1 |
| 2021-09-17 | 0 | 0 | 7.8 | 2.8 | 73 | 13.7 | 36 | 10.5 | 0 | muy_bajo | 1 |
| 2021-09-18 | 0 | 0 | 10.6 | 3.9 | 49 | 17.7 | 46.1 | 1.8 | 0.1 | muy_bajo | 1 |
| 2021-09-19 | 0 | 0 | 11.4 | 2.5 | 55 | 15 | 46.1 | 0.8 | 0.8 | muy_bajo | 1 |
| 2021-09-20 | 0 | 0 | 8.9 | 2.4 | 65 | 20.4 | 50 | 4.5 | 0.8 | muy_bajo | 1 |
| 2021-09-21 | 0 | 0 | 12.7 | 7.7 | 61 | 20.3 | 50.4 | 5.3 | 0.4 | muy_bajo | 1 |
| 2021-09-22 | 0 | 0 | 13.9 | 5.6 | 34 | 20.6 | 51.5 | 0 | 0.7 | muy_bajo | 1 |
| 2021-09-23 | 0 | 0 | 9.4 | 3.1 | 54 | 9.9 | 28.1 | 2.9 | 0.7 | muy_bajo | 1 |
| 2021-09-24 | 0 | 0 | 15.3 | 6 | 39 | 10.3 | 25.9 | 0 | 0.6 | muy_bajo | 1 |
| 2021-09-25 | 0 | 0 | 11.8 | 6.2 | 59 | 9.9 | 24.8 | 5 | 0.7 | muy_bajo | 1 |
| 2021-09-26 | 0 | 0 | 16.4 | 7.2 | 44 | 16.7 | 50.8 | 3.9 | 0.6 | muy_bajo | 1 |
| 2021-09-27 | 0 | 0 | 12.6 | 6.3 | 44 | 17.4 | 52.9 | 2 | 0.9 | muy_bajo | 1 |
| 2021-09-28 | 0 | 0 | 9.7 | 0.5 | 44 | 17.7 | 47.9 | 0.3 | 2.8 | muy_bajo | 1 |
| 2021-09-29 | 0 | 0 | 10.4 | 1.5 | 48 | 22.4 | 65.2 | 7.3 | 0.9 | muy_bajo | 1 |
| 2021-09-30 | 0 | 0 | 12.6 | 5 | 37 | 27.2 | 68.4 | 4.2 | 1.1 | muy_bajo | 1 |
| 2021-10-01 | 0 | 0 | 10.1 | 1.7 | 39 | 17.4 | 42.5 | 0 | 1.8 | muy_bajo | 1 |
| 2021-10-02 | 0 | 0 | 10 | 2.7 | 36 | 20.2 | 52.2 | 1.9 | 1.5 | muy_bajo | 1 |
| 2021-10-03 | 0 | 0 | 6.8 | -1.1 | 35 | 23.9 | 59.8 | 0 | 6.4 | bajo | 1 |
| 2021-10-04 | 0 | 0 | 4.7 | -2 | 58 | 7.8 | 20.9 | 0.1 | 2.7 | muy_bajo | 1 |
| 2021-10-05 | 0 | 0 | 1.9 | -0.3 | 80 | 13.2 | 34.6 | 9.9 | 0.1 | muy_bajo | 1 |
| 2021-10-06 | 0 | 0 | 3.1 | -2.2 | 67 | 10.1 | 31 | 1.3 | 0 | muy_bajo | 1 |
| 2021-10-07 | 0 | 0 | 5 | -2.8 | 49 | 8.6 | 25.6 | 0 | 0.2 | muy_bajo | 1 |
| 2021-10-08 | 0 | 0 | 9 | -1 | 55 | 11.5 | 29.2 | 0.4 | 0.4 | muy_bajo | 1 |
| 2021-10-09 | 0 | 0 | 9.1 | 1.3 | 60 | 16.2 | 53.6 | 2.4 | 0.9 | muy_bajo | 1 |
| 2021-10-10 | 0 | 0 | 5.1 | -1.4 | 55 | 21.2 | 55.4 | 0 | 0.5 | muy_bajo | 1 |
| 2021-10-11 | 0 | 0 | 5.3 | -2.2 | 53 | 12.2 | 29.2 | 0.8 | 0.4 | muy_bajo | 1 |
| 2021-10-12 | 0 | 0 | 4.2 | -0.6 | 63 | 15.8 | 45.4 | 1.9 | 0.5 | muy_bajo | 1 |
| 2021-10-13 | 0 | 0 | 5.4 | -1.5 | 51 | 12.2 | 33.5 | 0.7 | 0.7 | muy_bajo | 1 |
| 2021-10-14 | 0 | 0 | 7.8 | 0.5 | 45 | 16.4 | 43.2 | 0.2 | 2.4 | muy_bajo | 1 |
| 2021-10-15 | 0 | 0 | 9 | 2 | 50 | 14.5 | 46.4 | 2.7 | 0.6 | muy_bajo | 1 |
| 2021-10-16 | 0 | 0 | 6.3 | 0.9 | 84 | 9.9 | 23 | 5.4 | 0.1 | muy_bajo | 1 |
| 2021-10-17 | 0 | 0 | 2.7 | -2.3 | 69 | 9 | 24.5 | 2 | 0 | muy_bajo | 1 |
| 2021-10-18 | 0 | 0 | 2.1 | -4.3 | 63 | 9.6 | 27 | 0 | 0 | muy_bajo | 1 |
| 2021-10-19 | 0 | 0 | 2.4 | -1.7 | 76 | 11.6 | 32 | 0 | 0.2 | muy_bajo | 1 |
| 2021-10-20 | 0 | 0 | 5.9 | 1.6 | 79 | 12.6 | 29.5 | 0.4 | 0.3 | muy_bajo | 1 |
| 2021-10-21 | 0 | 0 | 9.4 | 0 | 57 | 24 | 58.7 | 0 | 0.6 | muy_bajo | 1 |
| 2021-10-22 | 0 | 0 | 11.9 | -0.4 | 33 | 18.7 | 50 | 0 | 2.2 | muy_bajo | 1 |
| 2021-10-23 | 0 | 0 | 8.9 | -2 | 47 | 13.1 | 33.5 | 0.7 | 2.8 | muy_bajo | 1 |
| 2021-10-24 | 0 | 0 | 6.3 | -4 | 63 | 18.8 | 44.6 | 1.3 | 2.1 | muy_bajo | 1 |
| 2021-10-25 | 0 | 0 | 8.7 | 0 | 62 | 11.4 | 28.8 | 1.6 | 0.5 | muy_bajo | 1 |
| 2021-10-26 | 0 | 0 | 8.4 | 0.7 | 46 | 17.5 | 42.5 | 1.5 | 0.7 | muy_bajo | 1 |
| 2021-10-27 | 0 | 0 | 6.5 | -1.6 | 39 | 26.2 | 73.8 | 0 | 2.7 | muy_bajo | 1 |
| 2021-10-28 | 0 | 0 | 4.8 | -2.6 | 48 | 8.4 | 24.5 | 0.3 | 0.9 | muy_bajo | 1 |
| 2021-10-29 | 0 | 0 | 1.8 | -5.1 | 43 | 15.5 | 41 | 0 | 3.4 | muy_bajo | 1 |
| 2021-10-30 | 0 | 0 | 2.6 | -8.5 | 38 | 9.4 | 19.8 | 0 | 2.4 | muy_bajo | 1 |
| 2021-10-31 | 0 | 0 | 2.2 | -8.8 | 42 | 10.4 | 29.9 | 0 | 3.8 | muy_bajo | 1 |
| 2021-11-01 | 0 | 0 | 2 | -8.3 | 37 | 12.4 | 34.2 | 0 | 4.9 | muy_bajo | 1 |
| 2021-11-02 | 10 | 577 | 5.6 | -4.5 | 55 | 17.7 | 43.6 | 0.8 | 4.5 | muy_bajo | 1 |
| 2021-11-03 | 0 | 0 | 6.5 | 2.4 | 80 | 17.1 | 42.8 | 12.3 | 0 | muy_bajo | 1 |
| 2021-11-04 | 0 | 0 | 7.6 | 2.4 | 80 | 12.6 | 31.3 | 4.8 | 0 | muy_bajo | 1 |
| 2021-11-05 | 0 | 0 | 2.6 | -2.6 | 73 | 15.1 | 39.2 | 1.7 | 0 | muy_bajo | 1 |
| 2021-11-06 | 2 | 14 | -0.1 | -4.2 | 66 | 8.3 | 23.8 | 0.6 | 0 | muy_bajo | 1 |
| 2021-11-07 | 0 | 0 | 0.1 | -5.4 | 47 | 7.9 | 23.4 | 0.1 | 0.1 | muy_bajo | 1 |
| 2021-11-08 | 0 | 0 | 1.3 | -6.8 | 62 | 21.6 | 53.6 | 0.7 | 0.3 | muy_bajo | 1 |
| 2021-11-09 | 0 | 0 | 3.3 | 0.7 | 41 | 22 | 56.2 | 0.4 | 0.4 | muy_bajo | 1 |
| 2021-11-10 | 2 | 156 | 3.5 | -3.6 | 51 | 20 | 63 | 0 | 0.8 | muy_bajo | 1 |
| 2021-11-11 | 3 | 99 | 2.3 | -3.7 | 59 | 21.1 | 55.4 | 3.1 | 0.7 | muy_bajo | 1 |
| 2021-11-12 | 5 | 206 | 7.1 | -0.7 | 37 | 20 | 52.2 | 0 | 0.5 | muy_bajo | 1 |
| 2021-11-13 | 2 | 3 | 1.6 | -1.7 | 57 | 19 | 47.9 | 2.6 | 0.4 | muy_bajo | 1 |
| 2021-11-14 | 1 | 7 | 1 | -3.8 | 75 | 16.7 | 46.1 | 7.5 | 0 | muy_bajo | 1 |
| 2021-11-15 | 0 | 0 | -1.6 | -7.4 | 75 | 18.4 | 45.7 | 4.8 | 0 | muy_bajo | 1 |
| 2021-11-16 | 4 | 14 | -2.9 | -14.4 | 68 | 14.4 | 31.7 | 0 | 0 | muy_bajo | 1 |
| 2021-11-17 | 0 | 0 | -2.1 | -12.4 | 73 | 12.2 | 24.1 | 0 | 0 | muy_bajo | 0 |
| 2021-11-18 | 0 | 0 | -0.7 | -9.8 | 71 | 10.4 | 21.2 | 0.1 | 0.1 | muy_bajo | 0 |
| 2021-11-19 | 0 | 0 | -0.9 | -8 | 68 | 23.6 | 59 | 0 | 0.2 | muy_bajo | 0 |
| 2021-11-20 | 0 | 0 | 1.1 | -2 | 66 | 24.2 | 59.8 | 0 | 0.3 | muy_bajo | 0 |
| 2021-11-21 | 0 | 0 | 2.1 | -1.1 | 77 | 15 | 36 | 3.1 | 0.2 | muy_bajo | 0 |
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Live widget for your story
It updates itself while the fire is still active and links to this page. Free, with the attribution shown at the bottom.
Sources for this page: NBAC (NRCan), NASA FIRMS (VIIRS), ERA5 (ECMWF/Copernicus C3S) · Open-Meteo.com (CC BY 4.0), GHSL (JRC). Open-Meteo.com · How we build fire pages: methodology
- Burnt area
- 27,986ha
- official perimeter (CWFIS)
- Duration
- 140days
- 30 Jun 2021 – 16 Nov 2021
- Census subdivisions hit
- 2
- municipalities
- Started on
- 30 Jun
- 2021
- Heat detections
- 4,430
- in a single hotspot: 367 MW
- Danger at start
- 27
- High · FWI index
- Average daily power
- 1.7GW
- detected power per day, on average
Where it burned
HOTSPOTS BY DAY
30 Jun16 Nov
16 Nov 2021
How it evolved, day by day
8 Jul
3 Aug
15 Aug
11 Nov
Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.
The weather it burned in
30°high
74km/h · peak gust
19%lowest humidity
It had gone 6 days without rain (1 mm or more) when it started. Rain came after the fire: 3.1 mm on 21 Nov.
This area had burned before
No earlier perimeters overlap this fire since 2016, when the satellite record begins.
How big is it?
London boundary: geoBoundaries · Office for National Statistics (Open Government Licence v3.0).
Paris boundary: geoBoundaries · Institut national de l'information géographique et forestière (IGN-F) (Etalab Open License 2.0).
Madrid boundary: geoBoundaries · Open Data ESRI, IGN Central Registry of Cartography Area (CC BY 4.0).
Berlin boundary: geoBoundaries · Federal Agency for Cartography and Geodesy (dl-de/by-2-0).
This compares size, not location: both shapes are at the same scale, north up, centred on each other.
What happened to each census subdivision
-
Bulkley-Nechako D where it started22,390 ha reached on 2 Jul4.8 %
-
5,420 ha reached on 15 Jul1.0 %
Burnt area inside each census subdivision, from crossing the official perimeter with administrative boundaries. The distance runs from the point marking the centre of each area to the nearest fire: staying a kilometre away does not mean it reached the houses.
People and buildings inside the perimeter
GHSL 2020Built-up area< 0.1 ha
Residents< 20
Inside the perimeter there was no noticeable built-up land and almost nobody lived there (GHSL 2020, satellite-based estimate).
This is an estimate on 100 m cells, made from satellite imagery and census data: it does not mean that homes burned or that anyone was harmed. The perimeter also contains land that never burned.
Source: Global Human Settlement Layer (GHS-BUILT-S and GHS-POP R2023A), European Commission Joint Research Centre (JRC), © European Union, CC BY 4.0. Sum inside the perimeter computed by WorldFires. human-settlement.emergency.copernicus.eu
The weather day by day
ECMWF ERA5 reanalysis at the fire location, the standard reference for past weather, and the Canadian Fire Weather Index (the same system Copernicus uses), computed by WorldFires from that data. Days after the fire run until the first rain.
Open-Meteo.com (CC BY 4.0) · Copernicus Climate Change Service (ERA5)
| Day | High | Min. humidity | Peak gust | Rain | Danger (FWI) |
|---|---|---|---|---|---|
| 30 Jun | 28.8 °C | 38 % | 41 km/h | 0.0 mm | High 27 |
| 1 Jul | 26.3 °C | 19 % | 38 km/h | 0.4 mm | High 28 |
| 2 Jul | 23.2 °C | 28 % | 40 km/h | 0.0 mm | High 30 |
| 3 Jul | 22.5 °C | 39 % | 33 km/h | 0.0 mm | High 23 |
| 4 Jul | 23.0 °C | 38 % | 32 km/h | 0.2 mm | High 23 |
| 5 Jul | 24.4 °C | 27 % | 30 km/h | 0.0 mm | High 25 |
| 6 Jul | 26.8 °C | 22 % | 20 km/h | 0.0 mm | High 26 |
| 7 Jul | 27.8 °C | 25 % | 37 km/h | 0.0 mm | High 27 |
| 8 Jul | 25.8 °C | 27 % | 33 km/h | 0.0 mm | High 29 |
| 9 Jul | 26.3 °C | 32 % | 22 km/h | 2.3 mm | High 26 |
| 10 Jul | 22.0 °C | 37 % | 56 km/h | 0.7 mm | Moderate 13 |
| 11 Jul | 23.4 °C | 30 % | 28 km/h | 0.0 mm | Moderate 19 |
| 12 Jul | 27.0 °C | 25 % | 22 km/h | 0.0 mm | High 22 |
| 13 Jul | 28.1 °C | 22 % | 33 km/h | 0.0 mm | High 26 |
| 14 Jul | 24.0 °C | 25 % | 38 km/h | 0.0 mm | High 34 |
| 15 Jul | 20.2 °C | 35 % | 34 km/h | 0.1 mm | High 33 |
| 16 Jul | 17.8 °C | 58 % | 30 km/h | 9.3 mm | Very low 2 |
| 17 Jul | 16.9 °C | 55 % | 28 km/h | 11.5 mm | Very low 0 |
| 18 Jul | 17.8 °C | 50 % | 23 km/h | 2.4 mm | Very low 0 |
| 19 Jul | 20.5 °C | 47 % | 29 km/h | 6.5 mm | Very low 2 |
| 20 Jul | 17.4 °C | 49 % | 30 km/h | 8.1 mm | Very low 0 |
| 21 Jul | 14.1 °C | 49 % | 49 km/h | 2.2 mm | Very low 0 |
| 22 Jul | 14.2 °C | 48 % | 59 km/h | 0.1 mm | Very low 3 |
| 23 Jul | 16.9 °C | 52 % | 44 km/h | 1.2 mm | Very low 4 |
| 24 Jul | 18.0 °C | 46 % | 40 km/h | 0.7 mm | Very low 5 |
| 25 Jul | 16.9 °C | 62 % | 37 km/h | 2.2 mm | Very low 0 |
| 26 Jul | 17.2 °C | 49 % | 41 km/h | 2.8 mm | Very low 1 |
| 27 Jul | 20.7 °C | 30 % | 26 km/h | 0.0 mm | Very low 4 |
| 28 Jul | 23.2 °C | 39 % | 32 km/h | 1.2 mm | Low 10 |
| 29 Jul | 24.7 °C | 33 % | 17 km/h | 0.0 mm | Low 5 |
| 30 Jul | 27.4 °C | 28 % | 31 km/h | 0.0 mm | Moderate 16 |
| 31 Jul | 29.6 °C | 28 % | 34 km/h | 0.4 mm | Moderate 16 |
| 1 Aug | 27.5 °C | 39 % | 24 km/h | 0.4 mm | Moderate 17 |
| 2 Aug | 26.2 °C | 31 % | 35 km/h | 0.8 mm | Low 10 |
| 3 Aug | 25.7 °C | 34 % | 29 km/h | 0.0 mm | Moderate 16 |
| 4 Aug | 27.3 °C | 35 % | 28 km/h | 2.4 mm | Moderate 18 |
| 5 Aug | 19.1 °C | 52 % | 36 km/h | 2.3 mm | Very low 3 |
| 6 Aug | 16.1 °C | 45 % | 45 km/h | 0.3 mm | Very low 4 |
| 7 Aug | 15.9 °C | 53 % | 44 km/h | 0.6 mm | Low 10 |
| 8 Aug | 23.6 °C | 35 % | 36 km/h | 0.0 mm | Low 11 |
| 9 Aug | 19.6 °C | 50 % | 59 km/h | 0.0 mm | Moderate 19 |
| 10 Aug | 24.0 °C | 46 % | 64 km/h | 0.2 mm | Moderate 18 |
| 11 Aug | 22.9 °C | 28 % | 47 km/h | 0.0 mm | High 26 |
| 12 Aug | 27.1 °C | 29 % | 26 km/h | 0.0 mm | Moderate 21 |
| 13 Aug | 29.8 °C | 23 % | 44 km/h | 0.0 mm | High 32 |
| 14 Aug | 22.2 °C | 45 % | 64 km/h | 1.2 mm | High 35 |
| 15 Aug | 20.9 °C | 47 % | 66 km/h | 0.6 mm | High 22 |
| 16 Aug | 15.7 °C | 37 % | 37 km/h | 0.0 mm | Moderate 17 |
| 17 Aug | 20.8 °C | 30 % | 27 km/h | 0.0 mm | Moderate 19 |
| 18 Aug | 16.6 °C | 59 % | 51 km/h | 0.2 mm | Moderate 21 |
| 19 Aug | 18.6 °C | 47 % | 36 km/h | 1.3 mm | Low 8 |
| 20 Aug | 20.0 °C | 37 % | 27 km/h | 0.0 mm | Moderate 16 |
| 21 Aug | 20.1 °C | 29 % | 46 km/h | 2.1 mm | High 24 |
| 22 Aug | 9.6 °C | 74 % | 37 km/h | 8.7 mm | Very low 0 |
| 23 Aug | 13.1 °C | 53 % | 26 km/h | 0.0 mm | Very low 0 |
| 24 Aug | 18.5 °C | 37 % | 20 km/h | 0.0 mm | Very low 2 |
| 25 Aug | 20.1 °C | 32 % | 32 km/h | 0.1 mm | Low 10 |
| 26 Aug | 14.2 °C | 70 % | 34 km/h | 10.4 mm | Very low 0 |
| 27 Aug | 15.2 °C | 58 % | 41 km/h | 0.1 mm | Very low 0 |
| 28 Aug | 20.1 °C | 42 % | 55 km/h | 1.4 mm | Very low 2 |
| 29 Aug | 14.4 °C | 38 % | 41 km/h | 0.0 mm | Low 6 |
| 30 Aug | 12.6 °C | 40 % | 30 km/h | 0.0 mm | Low 7 |
| 31 Aug | 14.1 °C | 42 % | 44 km/h | 0.0 mm | Moderate 12 |
| 1 Sept | 16.3 °C | 38 % | 28 km/h | 0.0 mm | Low 11 |
| 2 Sept | 21.0 °C | 25 % | 19 km/h | 0.0 mm | Moderate 13 |
| 3 Sept | 15.2 °C | 51 % | 19 km/h | 0.8 mm | Moderate 12 |
| 4 Sept | 19.8 °C | 43 % | 58 km/h | 2.7 mm | Low 6 |
| 5 Sept | 15.9 °C | 41 % | 55 km/h | 0.0 mm | Low 11 |
| 6 Sept | 14.4 °C | 47 % | 40 km/h | 0.1 mm | Moderate 12 |
| 7 Sept | 21.2 °C | 37 % | 33 km/h | 0.0 mm | Moderate 11 |
| 8 Sept | 16.4 °C | 55 % | 30 km/h | 7.5 mm | Low 8 |
| 9 Sept | 14.5 °C | 54 % | 22 km/h | 0.8 mm | Very low 0 |
| 10 Sept | 18.9 °C | 42 % | 23 km/h | 0.1 mm | Very low 1 |
| 11 Sept | 15.4 °C | 40 % | 37 km/h | 0.0 mm | Low 7 |
| 12 Sept | 13.2 °C | 48 % | 38 km/h | 0.2 mm | Low 9 |
| 13 Sept | 14.6 °C | 41 % | 35 km/h | 0.0 mm | Low 11 |
| 14 Sept | 14.6 °C | 42 % | 60 km/h | 4.5 mm | Very low 3 |
| 15 Sept | 9.9 °C | 47 % | 58 km/h | 0.6 mm | Low 6 |
| 16 Sept | 12.6 °C | 31 % | 32 km/h | 0.5 mm | Low 6 |
| 17 Sept | 7.8 °C | 73 % | 36 km/h | 10.5 mm | Very low 0 |
| 18 Sept | 10.6 °C | 49 % | 46 km/h | 1.8 mm | Very low 0 |
| 19 Sept | 11.4 °C | 55 % | 46 km/h | 0.8 mm | Very low 1 |
| 20 Sept | 8.9 °C | 65 % | 50 km/h | 4.5 mm | Very low 1 |
| 21 Sept | 12.7 °C | 61 % | 50 km/h | 5.3 mm | Very low 0 |
| 22 Sept | 13.9 °C | 34 % | 52 km/h | 0.0 mm | Very low 1 |
| 23 Sept | 9.4 °C | 54 % | 28 km/h | 2.9 mm | Very low 1 |
| 24 Sept | 15.3 °C | 39 % | 26 km/h | 0.0 mm | Very low 1 |
| 25 Sept | 11.8 °C | 59 % | 25 km/h | 5.0 mm | Very low 1 |
| 26 Sept | 16.4 °C | 44 % | 51 km/h | 3.9 mm | Very low 1 |
| 27 Sept | 12.6 °C | 44 % | 53 km/h | 2.0 mm | Very low 1 |
| 28 Sept | 9.7 °C | 44 % | 48 km/h | 0.3 mm | Very low 3 |
| 29 Sept | 10.4 °C | 48 % | 65 km/h | 7.3 mm | Very low 1 |
| 30 Sept | 12.6 °C | 37 % | 68 km/h | 4.2 mm | Very low 1 |
| 1 Oct | 10.1 °C | 39 % | 42 km/h | 0.0 mm | Very low 2 |
| 2 Oct | 10.0 °C | 36 % | 52 km/h | 1.9 mm | Very low 2 |
| 3 Oct | 6.8 °C | 35 % | 60 km/h | 0.0 mm | Low 6 |
| 4 Oct | 4.7 °C | 58 % | 21 km/h | 0.1 mm | Very low 3 |
| 5 Oct | 1.9 °C | 80 % | 35 km/h | 9.9 mm | Very low 0 |
| 6 Oct | 3.1 °C | 67 % | 31 km/h | 1.3 mm | Very low 0 |
| 7 Oct | 5.0 °C | 49 % | 26 km/h | 0.0 mm | Very low 0 |
| 8 Oct | 9.0 °C | 55 % | 29 km/h | 0.4 mm | Very low 0 |
| 9 Oct | 9.1 °C | 60 % | 54 km/h | 2.4 mm | Very low 1 |
| 10 Oct | 5.1 °C | 55 % | 55 km/h | 0.0 mm | Very low 0 |
| 11 Oct | 5.3 °C | 53 % | 29 km/h | 0.8 mm | Very low 0 |
| 12 Oct | 4.2 °C | 63 % | 45 km/h | 1.9 mm | Very low 0 |
| 13 Oct | 5.4 °C | 51 % | 34 km/h | 0.7 mm | Very low 1 |
| 14 Oct | 7.8 °C | 45 % | 43 km/h | 0.2 mm | Very low 2 |
| 15 Oct | 9.0 °C | 50 % | 46 km/h | 2.7 mm | Very low 1 |
| 16 Oct | 6.3 °C | 84 % | 23 km/h | 5.4 mm | Very low 0 |
| 17 Oct | 2.7 °C | 69 % | 24 km/h | 2.0 mm | Very low 0 |
| 18 Oct | 2.1 °C | 63 % | 27 km/h | 0.0 mm | Very low 0 |
| 19 Oct | 2.4 °C | 76 % | 32 km/h | 0.0 mm | Very low 0 |
| 20 Oct | 5.9 °C | 79 % | 30 km/h | 0.4 mm | Very low 0 |
| 21 Oct | 9.4 °C | 57 % | 59 km/h | 0.0 mm | Very low 1 |
| 22 Oct | 11.9 °C | 33 % | 50 km/h | 0.0 mm | Very low 2 |
| 23 Oct | 8.9 °C | 47 % | 34 km/h | 0.7 mm | Very low 3 |
| 24 Oct | 6.3 °C | 63 % | 45 km/h | 1.3 mm | Very low 2 |
| 25 Oct | 8.7 °C | 62 % | 29 km/h | 1.6 mm | Very low 0 |
| 26 Oct | 8.4 °C | 46 % | 42 km/h | 1.5 mm | Very low 1 |
| 27 Oct | 6.5 °C | 39 % | 74 km/h | 0.0 mm | Very low 3 |
| 28 Oct | 4.8 °C | 48 % | 24 km/h | 0.3 mm | Very low 1 |
| 29 Oct | 1.8 °C | 43 % | 41 km/h | 0.0 mm | Very low 3 |
| 30 Oct | 2.6 °C | 38 % | 20 km/h | 0.0 mm | Very low 2 |
| 31 Oct | 2.2 °C | 42 % | 30 km/h | 0.0 mm | Very low 4 |
| 1 Nov | 2.0 °C | 37 % | 34 km/h | 0.0 mm | Very low 5 |
| 2 Nov | 5.6 °C | 55 % | 44 km/h | 0.8 mm | Very low 4 |
| 3 Nov | 6.5 °C | 80 % | 43 km/h | 12.3 mm | Very low 0 |
| 4 Nov | 7.6 °C | 80 % | 31 km/h | 4.8 mm | Very low 0 |
| 5 Nov | 2.6 °C | 73 % | 39 km/h | 1.7 mm | Very low 0 |
| 6 Nov | -0.1 °C | 66 % | 24 km/h | 0.6 mm | Very low 0 |
| 7 Nov | 0.1 °C | 47 % | 23 km/h | 0.1 mm | Very low 0 |
| 8 Nov | 1.3 °C | 62 % | 54 km/h | 0.7 mm | Very low 0 |
| 9 Nov | 3.3 °C | 41 % | 56 km/h | 0.4 mm | Very low 0 |
| 10 Nov | 3.5 °C | 51 % | 63 km/h | 0.0 mm | Very low 1 |
| 11 Nov | 2.3 °C | 59 % | 55 km/h | 3.1 mm | Very low 1 |
| 12 Nov | 7.1 °C | 37 % | 52 km/h | 0.0 mm | Very low 0 |
| 13 Nov | 1.6 °C | 57 % | 48 km/h | 2.6 mm | Very low 0 |
| 14 Nov | 1.0 °C | 75 % | 46 km/h | 7.5 mm | Very low 0 |
| 15 Nov | -1.6 °C | 75 % | 46 km/h | 4.8 mm | Very low 0 |
| 16 Nov | -2.9 °C | 68 % | 32 km/h | 0.0 mm | Very low 0 |
| 17 Nov after | -2.1 °C | 73 % | 24 km/h | 0.0 mm | Very low 0 |
| 18 Nov after | -0.7 °C | 71 % | 21 km/h | 0.1 mm | Very low 0 |
| 19 Nov after | -0.9 °C | 68 % | 59 km/h | 0.0 mm | Very low 0 |
| 20 Nov after | 1.1 °C | 66 % | 60 km/h | 0.0 mm | Very low 0 |
| 21 Nov after | 2.1 °C | 77 % | 36 km/h | 3.1 mm | Very low 0 |
Its twins: fires that started in the same weather
It started with an FWI of 26.7, a minimum humidity of 38% and 6 days without rain. Fires in the area that started in weather like this since 2017: 35.
FWI at the start
26.7
Minimum humidity
38 %
Days without rain
6
this fire
chosen twins
rest of the area
Almost identicalSimilar
Outlines of the closest twins
This fire · Bulkley-Nechako D fire, June 2021
27,986 ha
140 days
FWI 26.7
Min. humidity 38 %
Bulkley-Nechako D fire, July 2017
7,626 ha
38 days
FWI 25.4
Min. humidity 38 %
35 km away, in 2017
First rain (1 mm or more) after it ended: 1.8 mm on 18 Aug.
Cariboo J fire, July 2018
56,240 ha
40 days
FWI 26.9
Min. humidity 36 %
125 km away, in 2018
First rain (1 mm or more) after it ended: 11.3 mm on 9 Sept.
Cariboo J fire, August 2018
64,269 ha
32 days
FWI 31.6
Min. humidity 39 %
115 km away, in 2018
First rain (1 mm or more) after it ended: 12.3 mm on 9 Sept.
Cariboo I fire, July 2024
1,156 ha
53 days
FWI 23.0
Min. humidity 32 %
41 km away, in 2024
First rain (1 mm or more) after it ended: 1.0 mm on 9 Sept.
Bulkley-Nechako E fire, July 2024
23,156 ha
52 days
FWI 21.2
Min. humidity 40 %
89 km away, in 2024
First rain (1 mm or more) after it ended: 1.0 mm on 13 Sept.
What happened to them
- 40 days
- median duration
- 6,992 ha
- median area
- 40 %
- went past 10,000 ha
- 3.9 mm
- rain at the end (median; 35 of 35 had it)
It was 4.0 times larger than the median of its twins and lasted 140 days, against 40 days.
Only 7 of its 35 twins burned more. The weather on the first day does not explain everything: the wind in the following days, the fuel and the firefighting also count. All of them had rain in the ten days after the end: the first rainy day brought a median of 3.9 mm.
This is a bank of analogues: it shows what usually happens, not what will happen. With fewer than 15 twins we give no figures. How we calculate it
How it ended
3.1 mmfirst rain
21 Nov5 days after it ended
74km/h · max. gust
It was considered over on 16 Nov, and on 21 Nov 3.1 mm fell. We do not know whether the rain or the firefighters put it out. Twins with rain when they ended: 35 of 35, with a median of 3.9 mm.
Weather on this page: Open-Meteo.com (CC BY 4.0) · Copernicus Climate Change Service (ERA5)
How a twin is chosen
- Same area: fires that have already ended, less than 250 km from this one, since 2017.
- Same start: we compare the FWI on the first day, the minimum humidity that day and the run of days without rain before it. The slider sets how much they may differ.
- Only pages with final weather data (ERA5 reanalysis) calculated in the same way as this fire’s; agricultural and grass burns and pages with data under review are left out.
- Fires burning at the same time as this one (a week before or after) are left out: they share the same spell of weather and do not count as a precedent.
- They are sorted by similarity, and the outlines of the first five are drawn.
Before and after, from space
Drag the line to compare the same ground before the fire and after it.
↔
Before · 23 Jun 2021
After · 23 Nov 2021
Sentinel-2 did not pass over on that day. Try another date, or use false colour, which is daily.
If the day is cloudy, change the date: each satellite passes once a day. In false colour the burnt ground looks brown or red.
Detections table · 4,430Every satellite heat detection, one by one, with time, satellite, power and coordinates.
⬇ Download CSV
Times in UTC. Each detection is a 375 m pixel: a large fire yields hundreds per pass.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
- 5,330 haCariboo I8 July 2017 · 112 days · 17 km away
- 3,973 haBulkley-Nechako F10 July 2023 · 68 days · 23 km away
- 2,334 haBulkley-Nechako DJuly 2024 · 32 days · 25 km away
- 2,004 haCariboo I8 July 2017 · 12 days · 30 km away
- 15,256 haCariboo IJuly 2018 · 39 days · 33 km away
- 7,626 haBulkley-Nechako D7 July 2017 · 38 days · 35 km away
Frequently asked questions
- How long did the Bulkley-Nechako D fire last?
- According to the heat detections seen by satellite inside the perimeter, it burned from 30 June 2021 to 16 November 2021 (140 days). The perimeter dates it from 30 June 2021 to 12 November 2021.
- How much area did it burn?
- The official perimeter mapped by Canada’s CWFIS (Natural Resources Canada) is 27,986 hectares (279.9 km²). Other tallies, such as those of provincial agencies, may give slightly different figures.
- Which census subdivisions burned?
- The fire entered 2 census subdivisions: Bulkley-Nechako D (22,390 ha, 4.8 %); Bulkley-Nechako F (5,420 ha, 1.0 %).
- What was the weather like?
- During the fire the temperature reached 29.8 °C, humidity dropped to 19 % and gusts hit 74 km/h. The fire danger index (FWI) reached 35, class High.
- Where does this data come from?
- From the official burnt perimeter of Canada’s CWFIS (NBAC, Natural Resources Canada) or, for the current season and until NBAC publishes it, the one rebuilt by GWIS (Copernicus); from NASA FIRMS VIIRS hotspots; and from the administrative boundaries of Canada. It is not an official report.
- How did the fires that started in similar weather in this area end?
- Fires less than 250 km away that started since 2017 with a similar FWI, humidity and dry spell: 35. Their median duration was 40 days and their median area 6,992 ha; 40 % went past 10,000 ha. Only 7 of its 35 twins burned more. The weather on the first day does not explain everything: the wind in the following days, the fuel and the firefighting also count. All of them had rain in the ten days after the end: the first rainy day brought a median of 3.9 mm.
Where to verify it
A satellite detection is not an official report. Final figures and the fire’s status are published by each country’s emergency service.
Emergency number: 911 · Emergency number and official warnings
- CIFFC · Canadian Interagency Forest Fire Centre ↗
- CWFIS · Canadian Wildland Fire Information System ↗
Satellite cross-check
History of this page Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
No changes since 24 October 2026.
RSS Changes to this page With cross-checks and a citable version
Does something look wrong on this page?
This page is built from satellite data and official records, and it sometimes gets things wrong: the wrong dates, the wrong town, two fires merged into one, or something that was not a wildfire at all. If you know this fire first-hand (you live nearby, saw it, fought it or reported on it), tell us what really happened and we will check it.
Report an error
How we know this
- Perimeter: NBAC (Natural Resources Canada), official.
- Dates adjusted with the VIIRS detections inside the perimeter, which said 30 June 2021 to 12 November 2021. 4,430 Suomi-NPP VIIRS detections on those dates.
- We have not matched this page with any official record.
- Weather: Copernicus ERA5 reanalysis at the fire location, in cells of about 25 km.
- Built-up area and population come from the JRC Global Human Settlement Layer (epoch 2020, 100 m cells), summed inside the perimeter: an estimate of what was there, not a damage count.
Where this data comes from
The perimeter is official: it comes from the National Burned Area Composite (NBAC) of the Canadian Wildland Fire Information System (CWFIS), Natural Resources Canada, which maps it on satellite imagery and publishes it under the Open Government Licence – Canada. Until NBAC publishes the current season, this year’s fires carry the perimeter rebuilt from heat detections by GWIS (Copernicus, CC BY 4.0), which is approximate. Heat detections come from the VIIRS sensors aboard Suomi-NPP and NOAA-20, distributed by NASA FIRMS at 375 m resolution. Census subdivision boundaries come from geoBoundaries ADM3 (Open Data Commons Open Database License 1.0). The area per census subdivision is computed by WorldFires by crossing the perimeter with those boundaries, so it may differ slightly from official figures.