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Okhotsky Rayon fire, June 2022 Okhotsky Rayon

Out · last detection 10 Jul 2022, 16:23 UTC

The fire started on 30 June 2022 in Okhotsky Rayon, Russia, and satellites saw it burning for 11 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 6,173 hectares from heat detections, spread across a single municipality.

It is the 116th largest in Khabarovsk Krai since 2016 (of 299 with a page). Number 166 in Russia in 2022, of 400.

Burnt area
6,173ha
GWIS perimeter (Copernicus)
Duration
11days
30 Jun 2022 – 10 Jul 2022
Municipalities hit
1
districts
Started on
30 Jun
2022
Heat detections
578
in a single hotspot: 222 MW
Danger at start
8
Low · FWI index
Average daily power
439MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 30 Jun10 Jul
10 Jul 2022

How it evolved, day by day

30 Jun 2022 · 2 MW · 1 1 Jul 2022 · 87 MW · 12 2 Jul 2022 · 84 MW · 19 3 Jul 2022 · 125 MW · 23 4 Jul 2022 · 794 MW · 57 5 Jul 2022 · 214 MW · 30 6 Jul 2022 · 491 MW · 127 7 Jul 2022 · 1,529 MW · 90 8 Jul 2022 · 460 MW · 92 9 Jul 2022 · 976 MW · 119 10 Jul 2022 · 71 MW · 8
30 Jun 3 Jul 7 Jul

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
53km/h · peak gust
30%lowest humidity

It had gone 0 days without rain (1 mm or more) when it started. Rain came after the fire: 1.4 mm on 11 Jul.

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 3.9% of the area of London (62 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. Okhotsky Rayon where it started
    6,001 ha reached on 30 Jun
    0.0 %

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.

People and buildings inside the perimeter

GHSL 2020
Built-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)
30 Jun 25.5 °C 42 % 35 km/h 0.4 mm Low 8
1 Jul 23.9 °C 45 % 40 km/h 2.5 mm Very low 3
2 Jul 23.8 °C 33 % 34 km/h 0.0 mm Low 10
3 Jul 26.4 °C 30 % 18 km/h 0.0 mm Moderate 12
4 Jul 28.8 °C 32 % 17 km/h 0.0 mm Moderate 13
5 Jul 29.5 °C 37 % 19 km/h 0.0 mm Moderate 14
6 Jul 31.6 °C 31 % 28 km/h 0.0 mm Moderate 18
7 Jul 30.6 °C 38 % 45 km/h 0.0 mm High 23
8 Jul 23.2 °C 46 % 53 km/h 2.0 mm Low 8
9 Jul 25.2 °C 30 % 16 km/h 0.0 mm Moderate 12
10 Jul 24.4 °C 55 % 42 km/h 0.2 mm Moderate 16
11 Jul after 22.9 °C 54 % 40 km/h 1.4 mm Low 7

Its twins: fires that started in the same weather

It started with an FWI of 8.3, a minimum humidity of 42% and rain the day before. Fires in the area that started in weather like this since 2019: 23.

FWI at the start 8.3
Minimum humidity 42 %
Days without rain 0
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

Ust-Maysky Ulus fire, June 2021
5,540 ha 17 days FWI 10.0 Min. humidity 41 % 69 km away, in 2021

First rain (1 mm or more) after it ended: 4.6 mm on 13 Jul.

What happened to them

13 days
median duration
5,793 ha
median area
26 %
went past 10,000 ha
9.6 mm
rain at the end (median; 23 of 23 had it)

It burned an area similar to its twins (6,173 ha against a median of 5,793 ha) and lasted 11 days, against 13 days.

All of them had rain in the ten days after the end: the first rainy day brought a median of 9.6 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

1.4 mmfirst rain
11 Julthe day after it ended
53km/h · max. gust

It was considered over on 10 Jul, and on 11 Jul 1.4 mm fell. We do not know whether the rain or the firefighters put it out. Twins with rain when they ended: 23 of 23, with a median of 9.6 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 2019.
  • 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.

How we calculate it

Before and after, from space

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

Before · 23 Jun 2022
After · 17 Jul 2022

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 · 578Every 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 Okhotsky Rayon fire last?
GWIS (Copernicus) dates it between 30 June 2022 and 10 July 2022: 11 days between the first and last heat detection of the perimeter.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 6,173 hectares (61.7 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Okhotsky Rayon (6,001 ha, 0.0 %).
What was the weather like?
During the fire the temperature reached 31.6 °C, humidity dropped to 30 % and gusts hit 53 km/h. The fire danger index (FWI) reached 23, 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.
How did the fires that started in similar weather in this area end?
Fires less than 250 km away that started since 2019 with a similar FWI, humidity and dry spell: 23. Their median duration was 13 days and their median area 5,793 ha; 26 % 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 9.6 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: 112 · 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.

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 from the perimeter: the VIIRS detections inside it did not change them. 578 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.

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.