Arvidsjaur fire, July 2021 Arvidsjaur
The fire started on 1 July 2021 in Arvidsjaur, Sweden, and satellites saw it burning for 3 days. Copernicus mapped a burnt perimeter of 138 hectares from satellite imagery, spread across a single municipality.
It is the 6th largest in Norrbottens län since 2016 (of 10 with a page). Number 2 in Sweden in 2021, of 3.
We have the Copernicus perimeter for this fire, but the VIIRS sensors did not capture it in enough detail: no day-by-day evolution, but the split by municipality is there.
- Burnt area
- 138ha
- Copernicus perimeter
- Duration
- 3days
- 1 Jul 2021 – 3 Jul 2021
- Municipalities hit
- 1
- municipalities
- Started on
- 1 Jul
- 2021
- Danger at start
- 10
- Low · FWI index
Where it burned
The weather it burned in
It had gone 5 days without rain (1 mm or more) when it started. Rain came after the fire: 1.6 mm on 7 Jul.
This area had burned before
98% of the perimeter overlaps earlier fires recorded since 2016: 135 ha in 2020.
What happened to each town
-
Arvidsjaur where it started138 ha0.0 %
Burnt area inside each municipality, from crossing the official perimeter with administrative boundaries. The distance is from the town centre to the nearest fire: staying a kilometre away does not mean it reached the houses.
What burned
- Coniferous forest77 %
- Mixed forest23 %
Land cover inside the perimeter according to Corine Land Cover, as reported by Copernicus.
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) |
|---|---|---|---|---|---|
| 1 Jul | 24.1 °C | 35 % | 27 km/h | 0.0 mm | Low 10 |
| 2 Jul | 26.8 °C | 25 % | 21 km/h | 0.0 mm | Moderate 13 |
| 3 Jul | 29.3 °C | 29 % | 22 km/h | 0.0 mm | Moderate 16 |
| 4 Jul after | 29.0 °C | 27 % | 28 km/h | 0.0 mm | Moderate 18 |
| 5 Jul after | 26.7 °C | 33 % | 38 km/h | 0.0 mm | Moderate 20 |
| 6 Jul after | 25.2 °C | 42 % | 36 km/h | 0.0 mm | Moderate 16 |
| 7 Jul after | 22.9 °C | 58 % | 42 km/h | 1.6 mm | Low 5 |
Before and after, from space
Drag the line to compare the same ground before the fire and after it.
If the day is cloudy, change the date: each satellite passes once a day. In false colour the burnt ground looks brown or red.
Other fires nearby
Frequently asked questions
- How long did the Arvidsjaur fire last?
- Copernicus dates it between 1 July 2021 and 3 July 2021: 3 days between the first and last image with fire.
- How much area did it burn?
- The perimeter Copernicus measured from satellite imagery is 138 hectares (1.4 km²). Official national figures may differ.
- Which municipalities burned?
- The fire only entered Arvidsjaur (138 ha, 0.0 %).
- What was the weather like?
- During the fire the temperature reached 29.3 °C, humidity dropped to 25 % and gusts hit 27 km/h. The fire danger index (FWI) reached 16, class Moderate.
- Where does this data come from?
- From the EFFIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Sweden (geoBoundaries). 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: 112
Satellite cross-check
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
Where this data comes from
The perimeter and land cover come from the Copernicus European Forest Fire Information System (EFFIS), measured on MODIS and Sentinel-2 imagery and published under CC BY 4.0. 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 (CC0 1.0 Universal (CC0 1.0) Public Domain Dedication). The area per municipality is computed by WorldFires by crossing the perimeter with those boundaries, so it may differ slightly from each country’s official figure.