Burned area
satellite only15,689ha
Perimeter published by GWIS (Copernicus).
- Source
- GWIS (Copernicus)
- Date
- 13 Oct 2021 – 18 Nov 2021
+− cross-check
No official record is matched to this page to compare it with.
ZM · Zambia · –
Rufunsa fire, October 2021 Luangwa, Rufunsa
Out · last detection 17 Nov 2021, 23:38 UTC
The fire started on 13 October 2021 in Rufunsa, Zambia, and satellites saw it burning for 37 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 15,689 hectares from heat detections, spread across 2 municipalities.
It is the 4th largest in Lusaka since 2016 (of 52 with a page). Number 16 in Zambia in 2021, of 213.
Use this data
Compare with…
Use this data
Fire page data · version 2026-10-27matches 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 only37days
13 Oct 2021 to 18 Nov 2021: first and last day with fire on the page.
- Source
- GWIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- last detection: 17 Nov 2021, 23:38 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 only13 Oct 2021
First day with fire seen by the satellites or the perimeter.
- Source
- GWIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- 13 Oct 2021
+− cross-check
No official record is matched to this page, so the alert time and the cause are not known here.
Hotspots
satellite only618
VIIRS detections at 375 m. Most intense hotspot: 42 MW.
- Source
- NASA FIRMS · VIIRS (Suomi NPP)
- Date
- 13 Oct 2021 – 18 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 only708MW
Total radiative power on 8 November 2021; hotspots that day: 110.
- Source
- NASA FIRMS · VIIRS (FRP)
- Date
- 8 Nov 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
model35.4FWI · high
Fire Weather Index (Canadian system) computed by WorldFires for the day the fire started. Consecutive days without rain before: 58.
- Source
- WorldFires calculation (Canadian FWI system)
- Date
- 13 Oct 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
model38.4°C · 21% RH
High of 38.4 °C and minimum humidity of 21% on 9 November 2021; gusts of 56 km/h on 19 October 2021.
- Source
- weather model at the fire’s grid cell
- Date
- 13 Oct 2021 – 18 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
-
logLast day with fire: 12 November 2021 → 18 November 2021.
-
logStart date: 20 October 2021 → 13 October 2021.
-
· reconstructed weatherWeather and FWI computed from the ERA5 reanalysis
What was saved on 27 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
- 15,689 ha
- Dates
- 13 Oct 2021 – 18 Nov 2021
- Name
- Luangwa
- Official record
- —
Versioned permanent link
https://worldfires.org/en/fire/rufunsa-2021-10?v=2026-10-27A 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 rufunsa-2021-10.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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021-10-13 | 5 | 37 | 29.9 | 17.3 | 22 | 13.7 | 34.6 | 0 | 35.4 | alto | 1 |
| 2021-10-14 | 0 | 0 | 31.9 | 19.4 | 27 | 15.2 | 35.6 | 0 | 37 | alto | 1 |
| 2021-10-15 | 0 | 0 | 34.3 | 19 | 23 | 13.4 | 31.7 | 0 | 37.8 | alto | 1 |
| 2021-10-16 | 0 | 0 | 35.2 | 21.2 | 20 | 13.2 | 31.7 | 0 | 40.5 | muy_alto | 1 |
| 2021-10-17 | 12 | 23 | 37.3 | 21.8 | 21 | 10.5 | 27.4 | 0 | 38.8 | muy_alto | 1 |
| 2021-10-18 | 6 | 39 | 36.1 | 23.3 | 26 | 26 | 54 | 1.1 | 46.9 | muy_alto | 1 |
| 2021-10-19 | 1 | 1 | 25.5 | 21.5 | 52 | 25.2 | 55.8 | 0 | 33.3 | alto | 1 |
| 2021-10-20 | 1 | 1 | 25.9 | 19.5 | 51 | 25.2 | 51.5 | 0.3 | 32.5 | alto | 1 |
| 2021-10-21 | 6 | 17 | 26.8 | 18 | 50 | 21.4 | 44.6 | 0.1 | 29.7 | alto | 1 |
| 2021-10-22 | 18 | 72 | 33.6 | 18.2 | 35 | 15.4 | 36 | 0 | 31.7 | alto | 1 |
| 2021-10-23 | 5 | 50 | 36.1 | 22.1 | 25 | 13.1 | 32 | 0 | 37.5 | alto | 1 |
| 2021-10-24 | 4 | 12 | 36.6 | 24.1 | 23 | 13.7 | 30.2 | 0 | 40.5 | muy_alto | 1 |
| 2021-10-25 | 6 | 28 | 33.9 | 23.8 | 32 | 25.2 | 54.4 | 0 | 50.6 | extremo | 1 |
| 2021-10-26 | 18 | 59 | 32.5 | 22.4 | 36 | 24.6 | 54.4 | 0 | 46 | muy_alto | 1 |
| 2021-10-27 | 14 | 47 | 32.2 | 24.2 | 38 | 26.3 | 55.1 | 0.1 | 46 | muy_alto | 1 |
| 2021-10-28 | 22 | 100 | 29.4 | 22.4 | 41 | 24.5 | 54.4 | 0 | 40.6 | muy_alto | 1 |
| 2021-10-29 | 21 | 108 | 30.3 | 19.6 | 36 | 18.1 | 41.4 | 0 | 35 | alto | 1 |
| 2021-10-30 | 34 | 139 | 34.6 | 18.7 | 26 | 12.7 | 28.8 | 0 | 36.1 | alto | 1 |
| 2021-10-31 | 36 | 252 | 35.1 | 23.3 | 25 | 12.6 | 31 | 0 | 37.5 | alto | 1 |
| 2021-11-01 | 20 | 89 | 36.3 | 23.7 | 28 | 16.5 | 37.1 | 0 | 41.4 | muy_alto | 1 |
| 2021-11-02 | 6 | 16 | 35.2 | 24.7 | 32 | 9.7 | 31.7 | 0 | 35.4 | alto | 1 |
| 2021-11-03 | 9 | 68 | 36.3 | 24.3 | 23 | 12.6 | 31.3 | 0 | 39.8 | muy_alto | 1 |
| 2021-11-04 | 26 | 254 | 35.1 | 26.3 | 32 | 19.1 | 45.4 | 0 | 45.2 | muy_alto | 1 |
| 2021-11-05 | 28 | 153 | 34.8 | 24.1 | 32 | 18.5 | 43.6 | 0 | 44.3 | muy_alto | 1 |
| 2021-11-06 | 45 | 239 | 36.4 | 22.7 | 22 | 18.6 | 42.1 | 0 | 46.9 | muy_alto | 1 |
| 2021-11-07 | 83 | 376 | 36.9 | 24.6 | 19 | 17 | 40 | 0 | 48.1 | muy_alto | 1 |
| 2021-11-08 | 110 | 708 | 37.5 | 24 | 21 | 14.5 | 34.6 | 0 | 45.6 | muy_alto | 1 |
| 2021-11-09 | 50 | 475 | 38.4 | 24.2 | 21 | 14.4 | 33.1 | 0 | 45.7 | muy_alto | 1 |
| 2021-11-10 | 10 | 110 | 38.1 | 26.8 | 21 | 19.7 | 43.6 | 0 | 52 | extremo | 1 |
| 2021-11-11 | 10 | 33 | 33.9 | 25.4 | 35 | 22 | 46.8 | 0 | 46.2 | muy_alto | 1 |
| 2021-11-12 | 2 | 29 | 34.5 | 23.6 | 35 | 19.5 | 44.6 | 2.2 | 25.2 | alto | 1 |
| 2021-11-13 | 0 | 0 | 32.6 | 22.5 | 34 | 14.8 | 40 | 0.2 | 30.3 | alto | 1 |
| 2021-11-14 | 0 | 0 | 31.8 | 24.5 | 37 | 17.5 | 45 | 0.4 | 32.7 | alto | 1 |
| 2021-11-15 | 1 | 2 | 33.8 | 23.6 | 36 | 18.4 | 49.3 | 0.1 | 34.1 | alto | 1 |
| 2021-11-16 | 7 | 24 | 33.6 | 21.6 | 33 | 17.8 | 45.4 | 0 | 35.2 | alto | 1 |
| 2021-11-17 | 2 | 5 | 36.2 | 24.3 | 23 | 14.8 | 37.1 | 0 | 40.5 | muy_alto | 1 |
| 2021-11-18 | 0 | 0 | 37.6 | 24.3 | 21 | 9.8 | 25.6 | 0 | 38.6 | muy_alto | 1 |
| 2021-11-19 | 0 | 0 | 36.5 | 24.3 | 22 | 9.7 | 23.8 | 0 | 38.8 | muy_alto | 0 |
| 2021-11-20 | 0 | 0 | 31.7 | 23.6 | 38 | 17 | 43.6 | 0.6 | 36.2 | alto | 0 |
| 2021-11-21 | 0 | 0 | 30.4 | 22.8 | 46 | 18.7 | 45 | 2.8 | 12.8 | moderado | 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: GWIS (Copernicus), NASA FIRMS (VIIRS), ERA5 (ECMWF/Copernicus C3S) · Open-Meteo.com (CC BY 4.0). Open-Meteo.com · How we build fire pages: methodology
- Burnt area
- 15,689ha
- GWIS perimeter (Copernicus)
- Duration
- 37days
- 13 Oct 2021 – 18 Nov 2021
- Municipalities hit
- 2
- districts
- Started on
- 13 Oct
- 2021
- Heat detections
- 618
- in a single hotspot: 42 MW
- Danger at start
- 35
- High · FWI index
- Average daily power
- 115MW
- detected power per day, on average
Where it burned
HOTSPOTS BY DAY
13 Oct18 Nov
17 Nov 2021
How it evolved, day by day
13 Oct
23 Oct
30 Oct
8 Nov
15 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
38°high
56km/h · peak gust
19%lowest humidity
It had gone 58 days without rain (1 mm or more) when it started. Rain came after the fire: 2.8 mm on 21 Nov.
This area had burned before
91% of the perimeter overlaps earlier fires recorded since 2016: 1,013 ha in 2016, 2,378 ha in 2017, 9,791 ha in 2018, 5,531 ha in 2019. Part of it burned more than once, so the yearly figures add up to more than the 14,354 ha that had burned before.
- 8,838 ha Rufunsa fire, September 2018 23,797 ha in total; the hectares shown are those it shares with this fire
- 5,008 ha Rufunsa fire, September 2019 11,002 ha in total; the hectares shown are those it shares with this fire
- 2,378 ha Rufunsa fire, October 2017 12,878 ha in total; the hectares shown are those it shares with this fire
- 678 ha Rufunsa fire, September 2018 31,689 ha in total; the hectares shown are those it shares with this fire
- 240 ha Rufunsa fire, October 2019 8,833 ha in total; the hectares shown are those it shares with this fire
- 47 ha Rufunsa fire, September 2016 3,354 ha in total; the hectares shown are those it shares with this fire
- 25 ha Rufunsa fire, September 2016 15,933 ha in total; the hectares shown are those it shares with this fire
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 town
-
8,091 ha2.1 %
-
Rufunsa where it started7,712 ha0.8 %
Burnt area inside each municipality, from crossing the GWIS 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.
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) |
|---|---|---|---|---|---|
| 13 Oct | 29.9 °C | 22 % | 35 km/h | 0.0 mm | High 35 |
| 14 Oct | 31.9 °C | 27 % | 36 km/h | 0.0 mm | High 37 |
| 15 Oct | 34.3 °C | 23 % | 32 km/h | 0.0 mm | High 38 |
| 16 Oct | 35.2 °C | 20 % | 32 km/h | 0.0 mm | Very high 40 |
| 17 Oct | 37.3 °C | 21 % | 27 km/h | 0.0 mm | Very high 39 |
| 18 Oct | 36.1 °C | 26 % | 54 km/h | 1.1 mm | Very high 47 |
| 19 Oct | 25.5 °C | 52 % | 56 km/h | 0.0 mm | High 33 |
| 20 Oct | 25.9 °C | 51 % | 52 km/h | 0.3 mm | High 32 |
| 21 Oct | 26.8 °C | 50 % | 45 km/h | 0.1 mm | High 30 |
| 22 Oct | 33.6 °C | 35 % | 36 km/h | 0.0 mm | High 32 |
| 23 Oct | 36.1 °C | 25 % | 32 km/h | 0.0 mm | High 38 |
| 24 Oct | 36.6 °C | 23 % | 30 km/h | 0.0 mm | Very high 40 |
| 25 Oct | 33.9 °C | 32 % | 54 km/h | 0.0 mm | Extreme 51 |
| 26 Oct | 32.5 °C | 36 % | 54 km/h | 0.0 mm | Very high 46 |
| 27 Oct | 32.2 °C | 38 % | 55 km/h | 0.1 mm | Very high 46 |
| 28 Oct | 29.4 °C | 41 % | 54 km/h | 0.0 mm | Very high 41 |
| 29 Oct | 30.3 °C | 36 % | 41 km/h | 0.0 mm | High 35 |
| 30 Oct | 34.6 °C | 26 % | 29 km/h | 0.0 mm | High 36 |
| 31 Oct | 35.1 °C | 25 % | 31 km/h | 0.0 mm | High 38 |
| 1 Nov | 36.3 °C | 28 % | 37 km/h | 0.0 mm | Very high 41 |
| 2 Nov | 35.2 °C | 32 % | 32 km/h | 0.0 mm | High 35 |
| 3 Nov | 36.3 °C | 23 % | 31 km/h | 0.0 mm | Very high 40 |
| 4 Nov | 35.1 °C | 32 % | 45 km/h | 0.0 mm | Very high 45 |
| 5 Nov | 34.8 °C | 32 % | 44 km/h | 0.0 mm | Very high 44 |
| 6 Nov | 36.4 °C | 22 % | 42 km/h | 0.0 mm | Very high 47 |
| 7 Nov | 36.9 °C | 19 % | 40 km/h | 0.0 mm | Very high 48 |
| 8 Nov | 37.5 °C | 21 % | 35 km/h | 0.0 mm | Very high 46 |
| 9 Nov | 38.4 °C | 21 % | 33 km/h | 0.0 mm | Very high 46 |
| 10 Nov | 38.1 °C | 21 % | 44 km/h | 0.0 mm | Extreme 52 |
| 11 Nov | 33.9 °C | 35 % | 47 km/h | 0.0 mm | Very high 46 |
| 12 Nov | 34.5 °C | 35 % | 45 km/h | 2.2 mm | High 25 |
| 13 Nov | 32.6 °C | 34 % | 40 km/h | 0.2 mm | High 30 |
| 14 Nov | 31.8 °C | 37 % | 45 km/h | 0.4 mm | High 33 |
| 15 Nov | 33.8 °C | 36 % | 49 km/h | 0.1 mm | High 34 |
| 16 Nov | 33.6 °C | 33 % | 45 km/h | 0.0 mm | High 35 |
| 17 Nov | 36.2 °C | 23 % | 37 km/h | 0.0 mm | Very high 40 |
| 18 Nov | 37.6 °C | 21 % | 26 km/h | 0.0 mm | Very high 39 |
| 19 Nov after | 36.5 °C | 22 % | 24 km/h | 0.0 mm | Very high 39 |
| 20 Nov after | 31.7 °C | 38 % | 44 km/h | 0.6 mm | High 36 |
| 21 Nov after | 30.4 °C | 46 % | 45 km/h | 2.8 mm | Moderate 13 |
Its twins: fires that started in the same weather
It started with an FWI of 35.4, a minimum humidity of 22% and 58 days without rain. Fires in the area that started in weather like this since 2016: 17.
FWI at the start
35.4
Minimum humidity
22 %
Days without rain
58
this fire
chosen twins
rest of the area
Almost identicalSimilar
Outlines of the closest twins
This fire · Rufunsa fire, October 2021
15,689 ha
37 days
FWI 35.4
Min. humidity 22 %
Nyimba fire, September 2016
28,105 ha
16 days
FWI 33.4
Min. humidity 23 %
139 km away, in 2016
First rain (1 mm or more) after it ended: none in the following ten days.
Hurungwe fire, September 2021
1,354 ha
7 days
FWI 34.9
Min. humidity 26 %
115 km away, in 2021
First rain (1 mm or more) after it ended: none in the following ten days.
Centenary/ Muzarabani fire, October 2022
2,137 ha
5 days
FWI 39.9
Min. humidity 22 %
208 km away, in 2022
First rain (1 mm or more) after it ended: none in the following ten days.
Hurungwe fire, August 2018
2,774 ha
3 days
FWI 28.8
Min. humidity 23 %
99 km away, in 2018
First rain (1 mm or more) after it ended: none in the following ten days.
Mazowe fire, October 2022
1,923 ha
7 days
FWI 39.5
Min. humidity 23 %
234 km away, in 2022
First rain (1 mm or more) after it ended: none in the following ten days.
What happened to them
- 6 days
- median duration
- 1,923 ha
- median area
- 100 %
- went past 1,000 ha
- —
- rain at the end (median; 0 of 17 had it)
It was 8.2 times larger than the median of its twins and lasted 37 days, against 6 days.
Only 2 of its 17 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. In none of them did 1 mm fall in the ten days after the end: they all went out without rain.
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
2.8 mmfirst rain
21 Nov3 days after it ended
56km/h · max. gust
It was considered over on 18 Nov, and on 21 Nov 2.8 mm fell. We do not know whether the rain or the firefighters put it out. None of its 17 twins had rain when they ended.
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 · 6 Oct 2021
After · 25 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 · 618Every 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
- 11,002 haRufunsaSeptember 2019 · 20 days · 5 km away
- 23,797 haRufunsa15 September 2018 · 28 days · 7 km away
- 12,878 haRufunsa11 October 2017 · 16 days · 11 km away
- 15,933 haRufunsa1 September 2016 · 32 days · 13 km away
- 31,689 haRufunsa11 September 2018 · 19 days · 16 km away
- 21,449 haRufunsa13 October 2026 · 16 days · 31 km away
Frequently asked questions
- How long did the Rufunsa fire last?
- According to the heat detections seen by satellite inside the perimeter, it burned from 13 October 2021 to 18 November 2021 (37 days). The perimeter dates it from 20 October 2021 to 12 November 2021.
- How much area did it burn?
- The perimeter GWIS (Copernicus) rebuilt from heat detections is 15,689 hectares (156.9 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire entered 2 municipalities: Luangwa (8,091 ha, 2.1 %); Rufunsa (7,712 ha, 0.8 %).
- What was the weather like?
- During the fire the temperature reached 38.4 °C, humidity dropped to 19 % and gusts hit 56 km/h. The fire danger index (FWI) reached 52, class Extreme.
- Where does this data come from?
- From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Zambia (geoBoundaries). 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: 17. Their median duration was 6 days and their median area 1,923 ha; 100 % went past 1,000 ha. Only 2 of its 17 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. In none of them did 1 mm fall in the ten days after the end: they all went out without rain.
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.
Satellite cross-check
History of this page · 2 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
- Last day with fire: 12 November 2021 → 18 November 2021.
- Start date: 20 October 2021 → 13 October 2021.
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: GWIS (Copernicus), rebuilt from heat detections rather than mapped on imagery.
- Dates adjusted with the VIIRS detections inside the perimeter, which said 20 October 2021 to 12 November 2021. 618 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.
Where this data comes from
The perimeter comes from the Copernicus Global Wildfire Information System (GWIS), which rebuilds it from MODIS and VIIRS heat detections and publishes it under CC BY 4.0. It is not measured on imagery as in Europe, so it is an estimate. Heat detections come from the VIIRS sensors aboard Suomi-NPP and NOAA-20, distributed by NASA FIRMS at 375 m resolution. Municipal boundaries come from geoBoundaries ADM2 (Creative Commons Attribution 4.0 (CC BY 4.0)). The area per municipality is computed by WorldFires by crossing the perimeter with those boundaries, so it may differ from each country’s official figure.