Burned area
satellite only5,108ha
Perimeter published by NBAC (NRCan).
- Source
- NBAC (NRCan)
- Date
- 22 Jun 2018 – 26 Aug 2018
+− cross-check
No official record is matched to this page to compare it with.
CA · Canada · –
Kenora, Unorganized fire, 22 June 2018 Kenora, Unorganized
Out · last detection 26 Aug 2018, 19:39 UTC
The fire started on 22 June 2018 in Kenora, Unorganized, Canada, and satellites saw it burning for 66 days. Canada’s CWFIS (Natural Resources Canada) mapped an official burnt perimeter of 5,108 hectares from satellite imagery, spread across a single census subdivision.
It is the 59th largest in Ontario since 2016 (of 144 with a page). Number 75 in Canada in 2018, of 212.
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 only66days
22 Jun 2018 to 26 Aug 2018: first and last day with fire on the page.
- Source
- NBAC (NRCan) · NASA FIRMS · VIIRS
- Date
- last detection: 26 Aug 2018, 19:39 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 only22 Jun 2018
First day with fire seen by the satellites or the perimeter.
- Source
- NBAC (NRCan) · NASA FIRMS · VIIRS
- Date
- 22 Jun 2018
+− cross-check
No official record is matched to this page, so the alert time and the cause are not known here.
Hotspots
satellite only509
VIIRS detections at 375 m. Most intense hotspot: 256 MW.
- Source
- NASA FIRMS · VIIRS (Suomi NPP)
- Date
- 22 Jun 2018 – 26 Aug 2018
+− 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 only10,026MW
Total radiative power on 18 July 2018; hotspots that day: 182.
- Source
- NASA FIRMS · VIIRS (FRP)
- Date
- 18 Jul 2018
+− 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
model18.3FWI · moderate
Fire Weather Index (Canadian system) computed by WorldFires for the day the fire started. Consecutive days without rain before: 5.
- Source
- WorldFires calculation (Canadian FWI system)
- Date
- 22 Jun 2018, 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
model32.3°C · 33% RH
High of 32.3 °C and minimum humidity of 33% on 11 August 2018; gusts of 70 km/h on 7 July 2018.
- Source
- weather model at the fire’s grid cell
- Date
- 22 Jun 2018 – 26 Aug 2018
- 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
- 5,108 ha
- Dates
- 22 Jun 2018 – 26 Aug 2018
- Name
- Kenora, Unorganized
- Official record
- —
Versioned permanent link
https://worldfires.org/en/fire/kenora-unorganized-2018-06-9?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 kenora-unorganized-2018-06-9.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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2018-06-22 | 0 | 0 | 28.2 | 19.7 | 40 | 11.3 | 26.6 | 3.2 | 18.3 | moderado | 1 |
| 2018-06-23 | 0 | 0 | 20.5 | 16.1 | 77 | 17.6 | 35.3 | 17.8 | 0.1 | muy_bajo | 1 |
| 2018-06-24 | 0 | 0 | 23.2 | 14.1 | 47 | 15.8 | 35.6 | 0 | 0.7 | muy_bajo | 1 |
| 2018-06-25 | 0 | 0 | 27.1 | 15.4 | 48 | 16.6 | 38.5 | 0.5 | 5.4 | bajo | 1 |
| 2018-06-26 | 0 | 0 | 28.7 | 19.3 | 37 | 15.9 | 35.3 | 0.1 | 10.3 | bajo | 1 |
| 2018-06-27 | 0 | 0 | 25.3 | 17.2 | 34 | 13.9 | 30.2 | 5.8 | 0.3 | muy_bajo | 1 |
| 2018-06-28 | 0 | 0 | 27.6 | 15.1 | 28 | 15.8 | 33.8 | 0 | 9.7 | bajo | 1 |
| 2018-06-29 | 0 | 0 | 27.7 | 17 | 34 | 14.7 | 31.3 | 4.7 | 0.7 | muy_bajo | 1 |
| 2018-06-30 | 0 | 0 | 23.3 | 17.2 | 57 | 18.2 | 43.6 | 3.4 | 0.1 | muy_bajo | 1 |
| 2018-07-01 | 0 | 0 | 23.3 | 15.6 | 50 | 13.5 | 33.5 | 0.6 | 1 | muy_bajo | 1 |
| 2018-07-02 | 0 | 0 | 21.8 | 14.3 | 53 | 23.1 | 62.3 | 7.5 | 1 | muy_bajo | 1 |
| 2018-07-03 | 0 | 0 | 21.8 | 11.4 | 49 | 13.2 | 32.8 | 0 | 1.4 | muy_bajo | 1 |
| 2018-07-04 | 0 | 0 | 25.3 | 15.6 | 50 | 30.9 | 66.6 | 5.7 | 0.2 | muy_bajo | 1 |
| 2018-07-05 | 0 | 0 | 22.4 | 13.1 | 39 | 26.6 | 61.2 | 0.1 | 4.3 | muy_bajo | 1 |
| 2018-07-06 | 0 | 0 | 26.4 | 13.6 | 38 | 17.3 | 38.2 | 0 | 10.7 | bajo | 1 |
| 2018-07-07 | 0 | 0 | 31.5 | 19.2 | 52 | 31.8 | 69.5 | 0.5 | 17.6 | moderado | 1 |
| 2018-07-08 | 0 | 0 | 25.4 | 16 | 40 | 22.1 | 52.9 | 0.3 | 15.4 | moderado | 1 |
| 2018-07-09 | 0 | 0 | 24.8 | 14.6 | 34 | 20.1 | 45.4 | 0 | 19.9 | moderado | 1 |
| 2018-07-10 | 0 | 0 | 28 | 14.4 | 27 | 10.5 | 18.7 | 0 | 13.6 | moderado | 1 |
| 2018-07-11 | 0 | 0 | 24.4 | 18.3 | 63 | 29.2 | 67 | 8.4 | 0.1 | muy_bajo | 1 |
| 2018-07-12 | 0 | 0 | 25.3 | 19.1 | 59 | 26.4 | 61.6 | 3.1 | 3.3 | muy_bajo | 1 |
| 2018-07-13 | 0 | 0 | 29.6 | 18.1 | 38 | 14.6 | 35.6 | 0 | 6.3 | bajo | 1 |
| 2018-07-14 | 0 | 0 | 31.5 | 19.6 | 37 | 24.3 | 51.5 | 0.4 | 22.8 | alto | 1 |
| 2018-07-15 | 0 | 0 | 22.5 | 15.5 | 41 | 28.2 | 68 | 0.2 | 22.2 | alto | 1 |
| 2018-07-16 | 0 | 0 | 17.5 | 11.4 | 56 | 25.2 | 52.9 | 0.3 | 13.4 | moderado | 1 |
| 2018-07-17 | 43 | 640 | 23.2 | 10.1 | 39 | 10.8 | 25.2 | 0 | 10.8 | bajo | 1 |
| 2018-07-18 | 182 | 10,026 | 29.3 | 14.2 | 31 | 17 | 39.2 | 0 | 22.1 | alto | 1 |
| 2018-07-19 | 203 | 642 | 27.5 | 16.1 | 53 | 15.5 | 34.2 | 9.8 | 17.6 | moderado | 1 |
| 2018-07-20 | 0 | 0 | 22.9 | 14.7 | 48 | 18.2 | 41 | 0.4 | 2.5 | muy_bajo | 1 |
| 2018-07-21 | 8 | 71 | 25 | 14.8 | 41 | 12.8 | 26.6 | 0 | 6.4 | bajo | 1 |
| 2018-07-22 | 2 | 1 | 25.5 | 15.7 | 46 | 19.5 | 41 | 2.4 | 11.9 | moderado | 1 |
| 2018-07-23 | 4 | 10 | 23.4 | 16.5 | 51 | 17.1 | 40.3 | 1.3 | 4.1 | muy_bajo | 1 |
| 2018-07-24 | 0 | 0 | 19.5 | 14.4 | 66 | 18.4 | 47.2 | 1 | 6.2 | bajo | 1 |
| 2018-07-25 | 0 | 0 | 14.7 | 11.4 | 86 | 19.7 | 40 | 7 | 0 | muy_bajo | 1 |
| 2018-07-26 | 0 | 0 | 21 | 10.8 | 39 | 16.6 | 39.2 | 0.3 | 0.6 | muy_bajo | 1 |
| 2018-07-27 | 0 | 0 | 23.7 | 11.8 | 43 | 11.4 | 28.1 | 0 | 4.9 | muy_bajo | 1 |
| 2018-07-28 | 0 | 0 | 24.4 | 13.8 | 41 | 12 | 29.5 | 0.1 | 11.6 | moderado | 1 |
| 2018-07-29 | 0 | 0 | 26.9 | 15 | 36 | 13.4 | 30.2 | 0 | 14.3 | moderado | 1 |
| 2018-07-30 | 0 | 0 | 27.3 | 16.3 | 39 | 15.6 | 37.1 | 1.1 | 15.5 | moderado | 1 |
| 2018-07-31 | 0 | 0 | 18.1 | 9.1 | 73 | 20.3 | 54.4 | 4.7 | 0.2 | muy_bajo | 1 |
| 2018-08-01 | 0 | 0 | 17.4 | 8.1 | 41 | 14.1 | 33.5 | 0 | 0.8 | muy_bajo | 1 |
| 2018-08-02 | 1 | 5 | 21 | 8.5 | 45 | 13.8 | 34.2 | 0 | 6.7 | bajo | 1 |
| 2018-08-03 | 4 | 46 | 26.9 | 13.8 | 40 | 16.7 | 38.2 | 0.3 | 16.1 | moderado | 1 |
| 2018-08-04 | 0 | 0 | 22.6 | 15.2 | 72 | 17.3 | 34.6 | 5.4 | 8.1 | bajo | 1 |
| 2018-08-05 | 0 | 0 | 18 | 10.6 | 83 | 16.5 | 40 | 8.8 | 0.1 | muy_bajo | 1 |
| 2018-08-06 | 0 | 0 | 18.8 | 9.6 | 49 | 12.4 | 25.9 | 0 | 0.6 | muy_bajo | 1 |
| 2018-08-07 | 0 | 0 | 28.1 | 12.8 | 41 | 20 | 50.4 | 0 | 8.3 | bajo | 1 |
| 2018-08-08 | 0 | 0 | 26.3 | 16.6 | 45 | 16.6 | 36.7 | 0 | 12.3 | moderado | 1 |
| 2018-08-09 | 0 | 0 | 26.5 | 15.2 | 43 | 12.2 | 26.6 | 0 | 12.2 | moderado | 1 |
| 2018-08-10 | 0 | 0 | 29.5 | 17.6 | 44 | 15 | 42.8 | 0 | 15.5 | moderado | 1 |
| 2018-08-11 | 0 | 0 | 32.3 | 17.6 | 33 | 16.9 | 35.6 | 0 | 21 | moderado | 1 |
| 2018-08-12 | 9 | 40 | 32.1 | 20.3 | 41 | 17.6 | 37.4 | 8.6 | 14.2 | moderado | 1 |
| 2018-08-13 | 0 | 0 | 26.1 | 14.5 | 62 | 23.3 | 53.3 | 0 | 2.5 | muy_bajo | 1 |
| 2018-08-14 | 0 | 0 | 15.6 | 10.4 | 57 | 16.1 | 36.7 | 0.2 | 1 | muy_bajo | 1 |
| 2018-08-15 | 3 | 28 | 25.7 | 10.5 | 39 | 17.1 | 38.5 | 0 | 11.2 | moderado | 1 |
| 2018-08-16 | 11 | 16 | 22.3 | 14.7 | 50 | 17 | 32.8 | 0.2 | 9.3 | bajo | 1 |
| 2018-08-17 | 5 | 22 | 23.4 | 11.6 | 51 | 12.6 | 21.6 | 0 | 7.4 | bajo | 1 |
| 2018-08-18 | 10 | 27 | 27.1 | 16.3 | 48 | 20.4 | 45.4 | 7.8 | 17.8 | moderado | 1 |
| 2018-08-19 | 0 | 0 | 19.8 | 13 | 51 | 16.8 | 40.7 | 0 | 1.8 | muy_bajo | 1 |
| 2018-08-20 | 0 | 0 | 21.1 | 10.5 | 38 | 10.5 | 27 | 0 | 5.5 | bajo | 1 |
| 2018-08-21 | 0 | 0 | 21.4 | 10.4 | 44 | 14.3 | 33.5 | 0.1 | 10.5 | bajo | 1 |
| 2018-08-22 | 3 | 15 | 26.8 | 14 | 28 | 20 | 45 | 0 | 20.2 | moderado | 1 |
| 2018-08-23 | 10 | 38 | 23.8 | 13.1 | 43 | 18.7 | 36.4 | 0 | 14 | moderado | 1 |
| 2018-08-24 | 2 | 3 | 20.9 | 11.1 | 59 | 14.6 | 27.7 | 0 | 13.4 | moderado | 1 |
| 2018-08-25 | 3 | 4 | 21.4 | 13.4 | 53 | 18.4 | 42.5 | 2.2 | 4.8 | muy_bajo | 1 |
| 2018-08-26 | 6 | 22 | 17.9 | 10.7 | 48 | 15.8 | 31.7 | 0 | 4.5 | muy_bajo | 1 |
| 2018-08-27 | 0 | 0 | 12.3 | 8.2 | 65 | 21.9 | 47.5 | 9.8 | 0.2 | muy_bajo | 0 |
It is generated in your browser from this page’s data: one file per fire, aggregated by day and without individual hotspots.
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
- 5,108ha
- official perimeter (CWFIS)
- Duration
- 66days
- 22 Jun 2018 – 26 Aug 2018
- Census subdivisions hit
- 1
- municipalities
- Started on
- 22 Jun
- 2018
- Heat detections
- 509
- in a single hotspot: 256 MW
- Danger at start
- 18
- Moderate · FWI index
- Average daily power
- 648MW
- detected power per day, on average
Where it burned
HOTSPOTS BY DAY
22 Jun26 Aug
26 Aug 2018
How it evolved, day by day
18 Jul
22 Jul
12 Aug
18 Aug
25 Aug
Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.
The weather it burned in
32°high
70km/h · peak gust
27%lowest humidity
It had gone 5 days without rain (1 mm or more) when it started. Rain came after the fire: 9.8 mm on 27 Aug.
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
-
Kenora, Unorganized where it started4,915 ha reached on 17 Jul0.0 %
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) |
|---|---|---|---|---|---|
| 22 Jun | 28.2 °C | 40 % | 27 km/h | 3.2 mm | Moderate 18 |
| 23 Jun | 20.5 °C | 77 % | 35 km/h | 17.8 mm | Very low 0 |
| 24 Jun | 23.2 °C | 47 % | 36 km/h | 0.0 mm | Very low 1 |
| 25 Jun | 27.1 °C | 48 % | 38 km/h | 0.5 mm | Low 5 |
| 26 Jun | 28.7 °C | 37 % | 35 km/h | 0.1 mm | Low 10 |
| 27 Jun | 25.3 °C | 34 % | 30 km/h | 5.8 mm | Very low 0 |
| 28 Jun | 27.6 °C | 28 % | 34 km/h | 0.0 mm | Low 10 |
| 29 Jun | 27.7 °C | 34 % | 31 km/h | 4.7 mm | Very low 1 |
| 30 Jun | 23.3 °C | 57 % | 44 km/h | 3.4 mm | Very low 0 |
| 1 Jul | 23.3 °C | 50 % | 34 km/h | 0.6 mm | Very low 1 |
| 2 Jul | 21.8 °C | 53 % | 62 km/h | 7.5 mm | Very low 1 |
| 3 Jul | 21.8 °C | 49 % | 33 km/h | 0.0 mm | Very low 1 |
| 4 Jul | 25.3 °C | 50 % | 67 km/h | 5.7 mm | Very low 0 |
| 5 Jul | 22.4 °C | 39 % | 61 km/h | 0.1 mm | Very low 4 |
| 6 Jul | 26.4 °C | 38 % | 38 km/h | 0.0 mm | Low 11 |
| 7 Jul | 31.5 °C | 52 % | 70 km/h | 0.5 mm | Moderate 18 |
| 8 Jul | 25.4 °C | 40 % | 53 km/h | 0.3 mm | Moderate 15 |
| 9 Jul | 24.8 °C | 34 % | 45 km/h | 0.0 mm | Moderate 20 |
| 10 Jul | 28.0 °C | 27 % | 19 km/h | 0.0 mm | Moderate 14 |
| 11 Jul | 24.4 °C | 63 % | 67 km/h | 8.4 mm | Very low 0 |
| 12 Jul | 25.3 °C | 59 % | 62 km/h | 3.1 mm | Very low 3 |
| 13 Jul | 29.6 °C | 38 % | 36 km/h | 0.0 mm | Low 6 |
| 14 Jul | 31.5 °C | 37 % | 52 km/h | 0.4 mm | High 23 |
| 15 Jul | 22.5 °C | 41 % | 68 km/h | 0.2 mm | High 22 |
| 16 Jul | 17.5 °C | 56 % | 53 km/h | 0.3 mm | Moderate 13 |
| 17 Jul | 23.2 °C | 39 % | 25 km/h | 0.0 mm | Low 11 |
| 18 Jul | 29.3 °C | 31 % | 39 km/h | 0.0 mm | High 22 |
| 19 Jul | 27.5 °C | 53 % | 34 km/h | 9.8 mm | Moderate 18 |
| 20 Jul | 22.9 °C | 48 % | 41 km/h | 0.4 mm | Very low 2 |
| 21 Jul | 25.0 °C | 41 % | 27 km/h | 0.0 mm | Low 6 |
| 22 Jul | 25.5 °C | 46 % | 41 km/h | 2.4 mm | Moderate 12 |
| 23 Jul | 23.4 °C | 51 % | 40 km/h | 1.3 mm | Very low 4 |
| 24 Jul | 19.5 °C | 66 % | 47 km/h | 1.0 mm | Low 6 |
| 25 Jul | 14.7 °C | 86 % | 40 km/h | 7.0 mm | Very low 0 |
| 26 Jul | 21.0 °C | 39 % | 39 km/h | 0.3 mm | Very low 1 |
| 27 Jul | 23.7 °C | 43 % | 28 km/h | 0.0 mm | Very low 5 |
| 28 Jul | 24.4 °C | 41 % | 30 km/h | 0.1 mm | Moderate 12 |
| 29 Jul | 26.9 °C | 36 % | 30 km/h | 0.0 mm | Moderate 14 |
| 30 Jul | 27.3 °C | 39 % | 37 km/h | 1.1 mm | Moderate 16 |
| 31 Jul | 18.1 °C | 73 % | 54 km/h | 4.7 mm | Very low 0 |
| 1 Aug | 17.4 °C | 41 % | 34 km/h | 0.0 mm | Very low 1 |
| 2 Aug | 21.0 °C | 45 % | 34 km/h | 0.0 mm | Low 7 |
| 3 Aug | 26.9 °C | 40 % | 38 km/h | 0.3 mm | Moderate 16 |
| 4 Aug | 22.6 °C | 72 % | 35 km/h | 5.4 mm | Low 8 |
| 5 Aug | 18.0 °C | 83 % | 40 km/h | 8.8 mm | Very low 0 |
| 6 Aug | 18.8 °C | 49 % | 26 km/h | 0.0 mm | Very low 1 |
| 7 Aug | 28.1 °C | 41 % | 50 km/h | 0.0 mm | Low 8 |
| 8 Aug | 26.3 °C | 45 % | 37 km/h | 0.0 mm | Moderate 12 |
| 9 Aug | 26.5 °C | 43 % | 27 km/h | 0.0 mm | Moderate 12 |
| 10 Aug | 29.5 °C | 44 % | 43 km/h | 0.0 mm | Moderate 16 |
| 11 Aug | 32.3 °C | 33 % | 36 km/h | 0.0 mm | Moderate 21 |
| 12 Aug | 32.1 °C | 41 % | 37 km/h | 8.6 mm | Moderate 14 |
| 13 Aug | 26.1 °C | 62 % | 53 km/h | 0.0 mm | Very low 2 |
| 14 Aug | 15.6 °C | 57 % | 37 km/h | 0.2 mm | Very low 1 |
| 15 Aug | 25.7 °C | 39 % | 38 km/h | 0.0 mm | Moderate 11 |
| 16 Aug | 22.3 °C | 50 % | 33 km/h | 0.2 mm | Low 9 |
| 17 Aug | 23.4 °C | 51 % | 22 km/h | 0.0 mm | Low 7 |
| 18 Aug | 27.1 °C | 48 % | 45 km/h | 7.8 mm | Moderate 18 |
| 19 Aug | 19.8 °C | 51 % | 41 km/h | 0.0 mm | Very low 2 |
| 20 Aug | 21.1 °C | 38 % | 27 km/h | 0.0 mm | Low 6 |
| 21 Aug | 21.4 °C | 44 % | 34 km/h | 0.1 mm | Low 10 |
| 22 Aug | 26.8 °C | 28 % | 45 km/h | 0.0 mm | Moderate 20 |
| 23 Aug | 23.8 °C | 43 % | 36 km/h | 0.0 mm | Moderate 14 |
| 24 Aug | 20.9 °C | 59 % | 28 km/h | 0.0 mm | Moderate 13 |
| 25 Aug | 21.4 °C | 53 % | 42 km/h | 2.2 mm | Very low 5 |
| 26 Aug | 17.9 °C | 48 % | 32 km/h | 0.0 mm | Very low 4 |
| 27 Aug after | 12.3 °C | 65 % | 48 km/h | 9.8 mm | Very low 0 |
Its twins: fires that started in the same weather
It started with an FWI of 18.3, a minimum humidity of 40% and 5 days without rain. Fires in the area that started in weather like this since 2016: 28.
FWI at the start
18.3
Minimum humidity
40 %
Days without rain
5
this fire
chosen twins
rest of the area
Almost identicalSimilar
Outlines of the closest twins
This fire · Kenora, Unorganized fire, 22 June 2018
5,108 ha
66 days
FWI 18.3
Min. humidity 40 %
Division No. 19, Unorganized fire, July 2021
1,015 ha
8 days
FWI 19.0
Min. humidity 40 %
216 km away, in 2021
First rain (1 mm or more) after it ended: 18.1 mm on 18 Jul.
Kenora, Unorganized fire, July 2021
1,544 ha
25 days
FWI 18.8
Min. humidity 39 %
225 km away, in 2021
First rain (1 mm or more) after it ended: 8.2 mm on 4 Aug.
Kenora, Unorganized fire, June 2021
50,185 ha
32 days
FWI 16.7
Min. humidity 41 %
146 km away, in 2021
First rain (1 mm or more) after it ended: 1.7 mm on 2 Aug.
Kenora, Unorganized fire, June 2019
28,698 ha
14 days
FWI 21.8
Min. humidity 40 %
99 km away, in 2019
First rain (1 mm or more) after it ended: 10.1 mm on 9 Jul.
Kenora, Unorganized fire, July 2021
5,631 ha
20 days
FWI 19.8
Min. humidity 37 %
71 km away, in 2021
First rain (1 mm or more) after it ended: 20.8 mm on 4 Aug.
What happened to them
- 24 days
- median duration
- 3,551 ha
- median area
- 29 %
- went past 10,000 ha
- 12.8 mm
- rain at the end (median; 28 of 28 had it)
It burned an area similar to its twins (5,108 ha against a median of 3,551 ha) and lasted 66 days, against 24 days.
All of them had rain in the ten days after the end: the first rainy day brought a median of 12.8 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
9.8 mmfirst rain
27 Augthe day after it ended
70km/h · max. gust
It was considered over on 26 Aug, and on 27 Aug 9.8 mm fell. We do not know whether the rain or the firefighters put it out. Twins with rain when they ended: 28 of 28, with a median of 12.8 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 2016.
- 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 · 15 Jun 2018
After · 2 Sept 2018
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 · 509Every satellite heat detection, one by one, with time, satellite, power and coordinates.
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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
- 8,279 haKenora, Unorganized4 July 2021 · 47 days · 19 km away
- 29,524 haKenora, Unorganized14 July 2018 · 48 days · 20 km away
- 8,762 haDivision No. 19, Unorganized25 July 2025 · 13 days · 23 km away
- 140,567 haKenora, Unorganized27 May 2021 · 69 days · 25 km away
- 33,332 haKenora, Unorganized30 June 2019 · 9 days · 27 km away
- 6,777 haKenora, Unorganized27 July 2025 · 11 days · 33 km away
Frequently asked questions
- How long did the Kenora, Unorganized fire last?
- It burned between 22 June 2018 and 26 August 2018: 66 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 5,108 hectares (51.1 km²). Other tallies, such as those of provincial agencies, may give slightly different figures.
- Which census subdivisions burned?
- The fire only entered Kenora, Unorganized (4,915 ha, 0.0 %).
- What was the weather like?
- During the fire the temperature reached 32.3 °C, humidity dropped to 27 % and gusts hit 70 km/h. The fire danger index (FWI) reached 23, 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 2016 with a similar FWI, humidity and dry spell: 28. Their median duration was 24 days and their median area 3,551 ha; 29 % went past 10,000 ha. All of them had rain in the ten days after the end: the first rainy day brought a median of 12.8 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.
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How we know this
- Perimeter: NBAC (Natural Resources Canada), official.
- Dates from the perimeter: the VIIRS detections inside it did not change them. 509 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.