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Mirninsky Ulus fire, 28 June 2021 Mirninsky Ulus

Out · last detection 15 Aug 2021, 05:26 UTC

The fire started on 28 June 2021 in Mirninsky Ulus, Russia, and satellites saw it burning for 49 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 108,682 hectares from heat detections, spread across a single municipality.

This page is probably a fire complex, not a single fire. GWIS merges into one perimeter the fires that touch over weeks, which in large burning seasons can join dozens of separate fires. The total area is reliable; the origin and dates refer to the whole complex.

Other fire pages in the same area and on the same dates:

It is the 32th largest in Sakha Republic since 2016 (of 1422 with a page). Number 14 in Russia in 2021, of 581.

Compare with…

Suggestions: Mirninsky Ulus · 2021Mirninsky Ulus · 2016

Burnt area
108,682ha
GWIS perimeter (Copernicus)
Duration
49days
28 Jun 2021 – 15 Aug 2021
Municipalities hit
1
districts
Started on
28 Jun
2021
Heat detections
17,608
in a single hotspot: 464 MW
Danger at start
19
Moderate · FWI index
Average daily power
3.5GW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 28 Jun15 Aug
15 Aug 2021

How it evolved, day by day

28 Jun 2021 · 395 MW · 19 29 Jun 2021 · 14 MW · 4 30 Jun 2021 · 20 MW · 4 1 Jul 2021 · 3 MW · 1 3 Jul 2021 · 26 MW · 6 4 Jul 2021 · 97 MW · 11 5 Jul 2021 · 202 MW · 54 6 Jul 2021 · 7,695 MW · 474 7 Jul 2021 · 10,708 MW · 749 8 Jul 2021 · 129 MW · 87 9 Jul 2021 · 11 MW · 12 10 Jul 2021 · 539 MW · 61 11 Jul 2021 · 262 MW · 132 12 Jul 2021 · 809 MW · 175 13 Jul 2021 · 142 MW · 90 14 Jul 2021 · 5,606 MW · 436 15 Jul 2021 · 342 MW · 235 16 Jul 2021 · 2,384 MW · 362 17 Jul 2021 · 311 MW · 174 18 Jul 2021 · 305 MW · 16 19 Jul 2021 · 3,367 MW · 571 20 Jul 2021 · 342 MW · 193 21 Jul 2021 · 60 MW · 45 22 Jul 2021 · 745 MW · 90 23 Jul 2021 · 679 MW · 124 24 Jul 2021 · 3,285 MW · 682 25 Jul 2021 · 5,762 MW · 888 26 Jul 2021 · 16,076 MW · 1447 27 Jul 2021 · 5,815 MW · 597 28 Jul 2021 · 8,021 MW · 939 29 Jul 2021 · 22,930 MW · 1988 30 Jul 2021 · 25,975 MW · 1830 31 Jul 2021 · 9,329 MW · 1293 1 Aug 2021 · 7,935 MW · 810 2 Aug 2021 · 7,785 MW · 1114 3 Aug 2021 · 9,137 MW · 666 4 Aug 2021 · 448 MW · 256 5 Aug 2021 · 21 MW · 20 6 Aug 2021 · 362 MW · 151 7 Aug 2021 · 13 MW · 2 8 Aug 2021 · 45 MW · 10 9 Aug 2021 · 9 MW · 7 10 Aug 2021 · 445 MW · 77 11 Aug 2021 · 67 MW · 34 12 Aug 2021 · 1,745 MW · 312 13 Aug 2021 · 4,539 MW · 352 15 Aug 2021 · 39 MW · 8
28 Jun 6 Jul 13 Jul 20 Jul 27 Jul 30 Jul 3 Aug 10 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

33°high
58km/h · peak gust
29%lowest humidity

It had gone one day without rain (1 mm or more) when it started. Rain came after the fire: 2.8 mm on 16 Aug.

This area had burned before

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

How big is it?

10 km
It burned the equivalent of 69% of the area of London (1,087 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 town

  1. Mirninsky Ulus where it started
    102,893 ha reached on 28 Jun
    0.6 %

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)
28 Jun 23.7 °C 36 % 32 km/h 0.0 mm Moderate 19
29 Jun 23.6 °C 42 % 36 km/h 0.6 mm Moderate 17
30 Jun 23.8 °C 38 % 21 km/h 0.9 mm Moderate 16
1 Jul 24.9 °C 60 % 29 km/h 1.8 mm Low 7
2 Jul 25.5 °C 51 % 24 km/h 0.7 mm Low 10
3 Jul 23.6 °C 47 % 27 km/h 1.3 mm Low 9
4 Jul 20.5 °C 52 % 36 km/h 0.6 mm Moderate 12
5 Jul 26.0 °C 38 % 28 km/h 0.0 mm Moderate 18
6 Jul 30.7 °C 29 % 25 km/h 0.0 mm High 28
7 Jul 33.1 °C 29 % 36 km/h 0.0 mm High 30
8 Jul 27.7 °C 53 % 45 km/h 4.3 mm Low 6
9 Jul 20.0 °C 63 % 58 km/h 0.0 mm Moderate 12
10 Jul 19.3 °C 43 % 23 km/h 0.5 mm Moderate 12
11 Jul 23.8 °C 38 % 28 km/h 0.0 mm Moderate 17
12 Jul 26.4 °C 34 % 18 km/h 0.1 mm Moderate 21
13 Jul 26.4 °C 40 % 40 km/h 2.6 mm Low 8
14 Jul 26.4 °C 39 % 26 km/h 0.0 mm Moderate 16
15 Jul 18.4 °C 54 % 41 km/h 1.5 mm Low 8
16 Jul 24.0 °C 39 % 16 km/h 0.0 mm Moderate 13
17 Jul 26.4 °C 50 % 33 km/h 0.0 mm Moderate 16
18 Jul 28.9 °C 39 % 44 km/h 1.5 mm Moderate 16
19 Jul 26.0 °C 35 % 37 km/h 0.0 mm High 22
20 Jul 25.8 °C 37 % 13 km/h 0.0 mm High 22
21 Jul 22.2 °C 62 % 36 km/h 4.4 mm Very low 3
22 Jul 25.8 °C 38 % 22 km/h 0.3 mm Low 8
23 Jul 24.7 °C 48 % 26 km/h 3.1 mm Very low 4
24 Jul 27.5 °C 35 % 37 km/h 0.0 mm Moderate 14
25 Jul 29.5 °C 32 % 24 km/h 0.0 mm Moderate 20
26 Jul 32.0 °C 31 % 20 km/h 0.0 mm High 23
27 Jul 31.6 °C 35 % 25 km/h 0.0 mm High 24
28 Jul 29.7 °C 45 % 34 km/h 0.0 mm High 23
29 Jul 27.2 °C 32 % 35 km/h 0.0 mm High 25
30 Jul 24.5 °C 30 % 35 km/h 0.0 mm High 25
31 Jul 25.2 °C 30 % 34 km/h 0.0 mm High 25
1 Aug 24.1 °C 35 % 34 km/h 0.0 mm High 26
2 Aug 27.0 °C 36 % 41 km/h 0.0 mm High 30
3 Aug 25.2 °C 37 % 44 km/h 0.0 mm High 29
4 Aug 25.0 °C 39 % 52 km/h 0.0 mm High 32
5 Aug 22.0 °C 54 % 47 km/h 2.0 mm Low 8
6 Aug 21.8 °C 38 % 37 km/h 0.0 mm Moderate 16
7 Aug 20.2 °C 45 % 31 km/h 0.0 mm Moderate 17
8 Aug 19.9 °C 48 % 25 km/h 0.3 mm Moderate 16
9 Aug 14.4 °C 71 % 18 km/h 3.0 mm Very low 2
10 Aug 22.4 °C 53 % 32 km/h 0.0 mm Low 6
11 Aug 23.4 °C 53 % 25 km/h 0.3 mm Low 10
12 Aug 26.0 °C 41 % 19 km/h 0.0 mm Moderate 17
13 Aug 26.6 °C 42 % 17 km/h 0.0 mm Moderate 19
14 Aug 22.4 °C 58 % 35 km/h 1.2 mm Low 9
15 Aug 21.8 °C 56 % 24 km/h 3.7 mm Very low 3
16 Aug after 17.4 °C 73 % 37 km/h 2.8 mm Very low 1

Before and after, from space

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

Before · 21 Jun 2021
After · 22 Aug 2021

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 · 17,608Every 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 Russia ›

Frequently asked questions

How long did the Mirninsky Ulus fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 28 June 2021 to 15 August 2021 (49 days). The perimeter dates it from 3 July 2021 to 15 August 2021.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 108,682 hectares (1,086.8 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Mirninsky Ulus (102,893 ha, 0.6 %).
What was the weather like?
During the fire the temperature reached 33.1 °C, humidity dropped to 29 % and gusts hit 58 km/h. The fire danger index (FWI) reached 32, class High.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Russia (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 · Emergency number and official warnings ›

Satellite cross-check

History of this page · 1 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
  1. Start date: 3 July 2021 → 28 June 2021.

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
What do you think is wrong?

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 112.

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 3 July 2021 to 15 August 2021. 17,608 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.

How we build fire pages: methodology ›

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 (Open Data Commons Open Database License 1.0). 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.