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105 Mile Post 2 fire, July 2017 Thompson-Nicola E (Bonaparte *, Thompson-Nicola I (Blue Sky C*, Thompson-Nicola J (Copper Des*

Out · last detection 19 Sept 2017, 21:15 UTC

The fire started on 6 July 2017 in 105 Mile Post 2, Canada, and satellites saw it burning for 76 days. Canada’s CWFIS (Natural Resources Canada) mapped an official burnt perimeter of 180,868 hectares from satellite imagery, spread across 11 census subdivisions.

It is the 6th largest in British Columbia since 2016 (of 448 with a page). Number 4 in Canada in 2017, of 242.

Compare with…

Suggestions: Thompson-Nicola J (Copper Des* · 2018Thompson-Nicola J (Copper Des* · 2021

Burnt area
180,868ha
official perimeter (CWFIS)
Duration
76days
6 Jul 2017 – 19 Sept 2017
Census subdivisions hit
11
municipalities
Started on
6 Jul
2017
Heat detections
30,287
in a single hotspot: 1,035 MW
Danger at start
37
High · FWI index
Average daily power
8.9GW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 6 Jul19 Sept
19 Sept 2017

How it evolved, day by day

7 Jul 2017 · 5,570 MW · 89 8 Jul 2017 · 2,795 MW · 237 9 Jul 2017 · 7,047 MW · 133 10 Jul 2017 · 1,839 MW · 338 11 Jul 2017 · 811 MW · 133 12 Jul 2017 · 4,174 MW · 203 13 Jul 2017 · 1,730 MW · 274 14 Jul 2017 · 29,364 MW · 347 15 Jul 2017 · 102,876 MW · 1635 16 Jul 2017 · 4,230 MW · 460 17 Jul 2017 · 2,147 MW · 265 18 Jul 2017 · 13,028 MW · 513 19 Jul 2017 · 9,579 MW · 842 20 Jul 2017 · 2,493 MW · 399 21 Jul 2017 · 20 MW · 8 23 Jul 2017 · 186 MW · 32 24 Jul 2017 · 543 MW · 53 25 Jul 2017 · 2,104 MW · 199 26 Jul 2017 · 17,429 MW · 610 27 Jul 2017 · 1,888 MW · 128 28 Jul 2017 · 2,037 MW · 388 29 Jul 2017 · 13,056 MW · 498 30 Jul 2017 · 35,345 MW · 1010 31 Jul 2017 · 15,461 MW · 1132 1 Aug 2017 · 16,043 MW · 1181 2 Aug 2017 · 16,390 MW · 1573 3 Aug 2017 · 10,792 MW · 1106 4 Aug 2017 · 34,204 MW · 1704 5 Aug 2017 · 11,515 MW · 1501 6 Aug 2017 · 8,865 MW · 1062 7 Aug 2017 · 7,837 MW · 778 8 Aug 2017 · 14,618 MW · 1077 9 Aug 2017 · 6,113 MW · 880 10 Aug 2017 · 6,718 MW · 650 11 Aug 2017 · 37,611 MW · 1193 12 Aug 2017 · 41,464 MW · 2143 13 Aug 2017 · 91 MW · 10 15 Aug 2017 · 4 MW · 1 16 Aug 2017 · 92 MW · 6 17 Aug 2017 · 1,222 MW · 109 18 Aug 2017 · 3,009 MW · 142 19 Aug 2017 · 98 MW · 21 20 Aug 2017 · 11 MW · 5 21 Aug 2017 · 45 MW · 14 22 Aug 2017 · 13,733 MW · 430 23 Aug 2017 · 8,436 MW · 689 24 Aug 2017 · 85 MW · 31 25 Aug 2017 · 3 MW · 2 26 Aug 2017 · 188 MW · 14 27 Aug 2017 · 1,244 MW · 33 28 Aug 2017 · 2,724 MW · 170 29 Aug 2017 · 14,924 MW · 333 30 Aug 2017 · 12,098 MW · 1090 31 Aug 2017 · 3,233 MW · 465 1 Sept 2017 · 1,408 MW · 196 2 Sept 2017 · 5,335 MW · 362 3 Sept 2017 · 2,759 MW · 516 4 Sept 2017 · 1,083 MW · 224 5 Sept 2017 · 1,736 MW · 218 6 Sept 2017 · 1,557 MW · 274 7 Sept 2017 · 244 MW · 111 8 Sept 2017 · 72 MW · 46 19 Sept 2017 · 4 MW · 1
7 Jul 15 Jul 16 Jul 26 Jul 4 Aug 13 Aug 23 Aug 1 Sept

Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.

The weather it burned in

33°high
62km/h · peak gust
9%lowest humidity

It had gone 15 days without rain (1 mm or more) when it started. Rain came after the fire: 3.9 mm on 20 Sept.

This area had burned before

No earlier perimeters overlap this fire since 2016, when the satellite record begins.

How big is it?

20 km
It burned the equivalent of 1.1 times the area of London (1,809 km² against 1,583 km²).

London boundary: geoBoundaries · Office for National Statistics (Open Government Licence v3.0).

This compares size, not location: both shapes are at the same scale, north up, centred on each other.

What happened to each census subdivision

  1. Thompson-Nicola E (Bonaparte *
    137,403 ha reached on 10 Jul
    20 %
  2. Thompson-Nicola I (Blue Sky C*
    27,493 ha reached on 7 Jul
    4.8 %
  3. Thompson-Nicola J (Copper Des*
    7,198 ha reached on 5 Aug
    2.1 %
  4. Cariboo L
    6,080 ha reached on 30 Aug
    4.4 %
  5. 105 Mile Post 2 where it started
    1,211 ha reached on 7 Jul
    89 %
  6. Cache Creek
    551 ha reached on 7 Jul
    53 %
  7. Lower Hat Creek 2
    333 ha reached on 9 Aug
    40 %
  8. Ashcroft 4
    136 ha reached on 7 Jul
    95 %
  9. Bonaparte 3
    104 ha reached on 8 Jul
    15 %
  10. Ashcroft
    65 ha reached on 7 Jul
    1.2 %
  11. Clinton
    26 ha reached on 7 Aug
    3.2 %

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 2015
Built-up area7.7 ha
Residents≈ 350

Inside the perimeter there were about 7.7 hectares of built-up land and about 350 residents (GHSL 2015, 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)
6 Jul 31.5 °C 9 % 29 km/h 0.0 mm High 37
7 Jul 30.4 °C 11 % 62 km/h 0.1 mm Extreme 57
8 Jul 28.1 °C 19 % 25 km/h 0.0 mm High 38
9 Jul 27.4 °C 20 % 39 km/h 0.4 mm Very high 40
10 Jul 21.1 °C 30 % 45 km/h 0.0 mm High 38
11 Jul 24.1 °C 23 % 20 km/h 0.0 mm High 28
12 Jul 25.7 °C 27 % 31 km/h 0.1 mm High 30
13 Jul 25.5 °C 19 % 35 km/h 0.1 mm High 32
14 Jul 27.9 °C 13 % 38 km/h 0.0 mm Very high 42
15 Jul 26.5 °C 15 % 51 km/h 0.0 mm Very high 46
16 Jul 17.4 °C 31 % 41 km/h 2.8 mm Low 8
17 Jul 21.3 °C 20 % 23 km/h 0.0 mm Moderate 18
18 Jul 25.9 °C 20 % 26 km/h 0.0 mm High 26
19 Jul 25.6 °C 27 % 28 km/h 1.4 mm Moderate 15
20 Jul 17.9 °C 48 % 42 km/h 10.1 mm Very low 2
21 Jul 21.0 °C 37 % 33 km/h 0.0 mm Low 7
22 Jul 24.2 °C 38 % 43 km/h 0.0 mm Moderate 16
23 Jul 18.7 °C 42 % 62 km/h 0.7 mm Moderate 18
24 Jul 21.9 °C 28 % 35 km/h 0.0 mm Moderate 20
25 Jul 27.2 °C 18 % 20 km/h 0.0 mm High 27
26 Jul 28.2 °C 17 % 34 km/h 0.0 mm High 31
27 Jul 26.3 °C 31 % 37 km/h 2.2 mm Low 10
28 Jul 25.7 °C 28 % 22 km/h 0.0 mm Moderate 21
29 Jul 29.4 °C 17 % 38 km/h 0.0 mm High 33
30 Jul 28.3 °C 18 % 28 km/h 0.0 mm High 33
31 Jul 25.4 °C 21 % 33 km/h 0.0 mm High 32
1 Aug 25.0 °C 23 % 38 km/h 0.0 mm High 34
2 Aug 28.1 °C 18 % 26 km/h 0.0 mm High 32
3 Aug 29.7 °C 18 % 38 km/h 0.0 mm High 36
4 Aug 25.6 °C 28 % 42 km/h 0.0 mm High 36
5 Aug 27.1 °C 22 % 25 km/h 0.0 mm High 31
6 Aug 29.5 °C 16 % 20 km/h 0.0 mm High 34
7 Aug 29.3 °C 17 % 30 km/h 0.0 mm High 36
8 Aug 28.8 °C 17 % 31 km/h 0.0 mm High 38
9 Aug 31.0 °C 15 % 25 km/h 0.0 mm High 37
10 Aug 32.1 °C 14 % 20 km/h 0.0 mm High 38
11 Aug 32.7 °C 14 % 28 km/h 0.0 mm Very high 43
12 Aug 31.0 °C 17 % 59 km/h 0.2 mm Extreme 50
13 Aug 20.7 °C 49 % 37 km/h 12.7 mm Very low 2
14 Aug 18.5 °C 35 % 26 km/h 0.0 mm Low 6
15 Aug 21.4 °C 33 % 25 km/h 0.0 mm Moderate 15
16 Aug 25.5 °C 25 % 27 km/h 0.0 mm High 22
17 Aug 26.3 °C 26 % 25 km/h 0.0 mm High 23
18 Aug 21.8 °C 32 % 49 km/h 1.1 mm Moderate 20
19 Aug 19.4 °C 33 % 27 km/h 0.0 mm Moderate 18
20 Aug 20.3 °C 42 % 26 km/h 0.0 mm Moderate 18
21 Aug 25.0 °C 33 % 28 km/h 0.0 mm High 22
22 Aug 30.3 °C 17 % 38 km/h 0.0 mm High 35
23 Aug 26.7 °C 24 % 41 km/h 0.3 mm High 36
24 Aug 16.1 °C 47 % 40 km/h 11.6 mm Very low 1
25 Aug 20.3 °C 29 % 24 km/h 0.0 mm Very low 5
26 Aug 26.2 °C 27 % 35 km/h 0.0 mm Moderate 17
27 Aug 29.3 °C 28 % 23 km/h 0.0 mm Moderate 20
28 Aug 29.3 °C 28 % 20 km/h 0.0 mm High 23
29 Aug 31.0 °C 9 % 37 km/h 0.0 mm Very high 40
30 Aug 26.2 °C 22 % 29 km/h 0.0 mm High 33
31 Aug 21.0 °C 34 % 29 km/h 0.0 mm High 26
1 Sept 25.5 °C 27 % 28 km/h 0.0 mm High 27
2 Sept 28.0 °C 24 % 40 km/h 0.0 mm High 33
3 Sept 25.0 °C 39 % 46 km/h 0.0 mm High 29
4 Sept 26.5 °C 30 % 20 km/h 0.0 mm High 23
5 Sept 26.7 °C 29 % 29 km/h 0.0 mm High 25
6 Sept 26.7 °C 28 % 30 km/h 0.2 mm High 25
7 Sept 26.6 °C 36 % 28 km/h 0.7 mm High 22
8 Sept 20.7 °C 57 % 36 km/h 14.3 mm Very low 1
9 Sept 15.6 °C 48 % 40 km/h 2.0 mm Very low 3
10 Sept 20.3 °C 33 % 35 km/h 0.0 mm Low 7
11 Sept 23.4 °C 33 % 42 km/h 0.6 mm Moderate 16
12 Sept 16.5 °C 47 % 36 km/h 3.1 mm Very low 3
13 Sept 14.0 °C 37 % 51 km/h 0.7 mm Low 7
14 Sept 15.9 °C 23 % 38 km/h 0.0 mm Moderate 13
15 Sept 17.9 °C 22 % 23 km/h 0.0 mm Moderate 15
16 Sept 19.1 °C 28 % 26 km/h 0.4 mm Moderate 16
17 Sept 15.4 °C 35 % 60 km/h 0.4 mm High 23
18 Sept 9.5 °C 55 % 35 km/h 5.3 mm Very low 1
19 Sept 10.9 °C 47 % 22 km/h 0.4 mm Very low 2
20 Sept after 6.8 °C 67 % 47 km/h 3.9 mm Very low 0

Before and after, from space

Drag the line to compare the same ground before the fire and after it.

Before · 29 Jun 2017
After · 26 Sept 2017

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 · 30,287Every 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 timeSatelliteFRP (MW)LatLon

Other fires nearby

All fires in Canada ›

Frequently asked questions

How long did the 105 Mile Post 2 fire last?
It burned between 6 July 2017 and 19 September 2017: 76 days, according to the dates recorded by Canada’s CWFIS and the heat detections seen by satellite.
How much area did it burn?
The official perimeter mapped by Canada’s CWFIS (Natural Resources Canada) is 180,868 hectares (1,808.7 km²). Other tallies, such as those of provincial agencies, may give slightly different figures.
Which census subdivisions burned?
The fire entered 11 census subdivisions: Thompson-Nicola E (Bonaparte * (137,403 ha, 20 %); Thompson-Nicola I (Blue Sky C* (27,493 ha, 4.8 %); Thompson-Nicola J (Copper Des* (7,198 ha, 2.1 %); Cariboo L (6,080 ha, 4.4 %); 105 Mile Post 2 (1,211 ha, 89 %); Cache Creek (551 ha, 53 %); Lower Hat Creek 2 (333 ha, 40 %); Ashcroft 4 (136 ha, 95 %); Bonaparte 3 (104 ha, 15 %); Ashcroft (65 ha, 1.2 %); Clinton (26 ha, 3.2 %).
What was the weather like?
During the fire the temperature reached 32.7 °C, humidity dropped to 9 % and gusts hit 62 km/h. The fire danger index (FWI) reached 57, class Extreme.
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.

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 ›

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

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
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We will only use your email to reply about this report. Privacy. This is not an emergency service: if there is a fire now, call 911.

How we know this
  • Perimeter: NBAC (Natural Resources Canada), official.
  • Dates from the perimeter: the VIIRS detections inside it did not change them. 30,287 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 2015, 100 m cells), summed inside the perimeter: an estimate of what was there, not a damage count.

How we build fire pages: methodology ›

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.