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Yasynuvata fire, 22 July 2025 Yasynuvata

Out · last measured on 24 Jul 2025

The fire started on 22 July 2025 in Yasynuvata, Ukraine, and satellites saw it burning for 3 days. Copernicus mapped a burnt perimeter of 474 hectares from satellite imagery, spread across a single municipality.

It is the 122th largest in Donetsk Oblast since 2016 (of 1004 with a page). Number 189 in Ukraine in 2025, of 1358.

Compare with…

Suggestions: Yasynuvata · 2024Velyka Novosilka · 2025Yasynuvata · 2024Yasynuvata · 2022

We have the Copernicus perimeter for this fire, but not yet its hotspots: NASA publishes the yearly hotspot archive only once the year closes. The page picks it up automatically when it is available.

Burnt area
474ha
Copernicus perimeter
Duration
3days
22 Jul 2025 – 24 Jul 2025
Municipalities hit
1
districts
Started on
22 Jul
2025
Danger at start
30
High · FWI index

Where it burned

The weather it burned in

33°high
47km/h · peak gust
27%lowest humidity

It had gone 2 days without rain (1 mm or more) when it started. Rain came after the fire: 5.1 mm on 3 Aug.

This area had burned before

22% of the perimeter overlaps earlier fires recorded since 2016: 69 ha in 2023, 47 ha in 2024. Part of it burned more than once, so the yearly figures add up to more than the 106 ha that had burned before.

What happened to each town

  1. Yasynuvata where it started
    474 ha reached on 23 Jul
    0.4 %

Burnt area inside each municipality, 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.

What burned

  • Agricultural areas55 %
  • Other natural land24 %
  • Mixed forest16 %
  • Artificial surfaces4.4 %

Land cover inside the perimeter as reported by Copernicus EFFIS (outside the Corine Land Cover area).

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 Jul 32.8 °C 27 % 37 km/h 0.0 mm High 30
23 Jul 32.5 °C 40 % 41 km/h 4.0 mm Low 10
24 Jul 29.5 °C 32 % 47 km/h 0.0 mm High 24
25 Jul after 31.0 °C 31 % 35 km/h 0.0 mm High 25
26 Jul after 33.5 °C 29 % 19 km/h 0.0 mm High 23
27 Jul after 31.5 °C 36 % 31 km/h 0.0 mm High 27
28 Jul after 31.6 °C 23 % 37 km/h 0.0 mm High 35
29 Jul after 33.7 °C 18 % 42 km/h 0.0 mm Very high 40
30 Jul after 36.4 °C 18 % 50 km/h 0.0 mm Very high 47
31 Jul after 28.3 °C 37 % 38 km/h 0.0 mm High 33
1 Aug after 28.4 °C 37 % 32 km/h 0.0 mm High 29
2 Aug after 30.7 °C 31 % 34 km/h 0.0 mm High 31
3 Aug after 25.3 °C 54 % 32 km/h 5.1 mm Low 6

Its twins: fires that started in the same weather

It started with an FWI of 29.8, a minimum humidity of 27% and 2 days without rain. Fires in the area that started in weather like this since 2016: 53.

FWI at the start 29.8
Minimum humidity 27 %
Days without rain 2
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

Yasynuvata fire, September 2024
240 ha 1 day FWI 29.8 Min. humidity 27 % 19 km away, in 2024

First rain (1 mm or more) after it ended: none in the following ten days.

See its page Compare with this fire

What happened to them

2 days
median duration
189 ha
median area
8 %
went past 1,000 ha
3.2 mm
rain at the end (median; 41 of 53 had it)

It was 2.5 times larger than the median of its twins and lasted 3 days, against 2 days.

Only 11 of its 53 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 12 of 53, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 3.2 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

5.1 mmfirst rain
3 Aug10 days after it ended
47km/h · max. gust

It was considered over on 24 Jul, and on 3 Aug 5.1 mm fell. We do not know whether the rain or the firefighters put it out. Twins with rain when they ended: 41 of 53, with a median of 3.2 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.

How we calculate it

Before and after, from space

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

Before · 15 Jul 2025
After · 31 Jul 2025

If the day is cloudy, change the date: each satellite passes once a day. In false colour the burnt ground looks brown or red.

The smoke

CAMS · Copernicus

On 27 July 2025 the air beside the fire reached 32 µg/m³ of PM2.5. That day averaged 16: 1.0 times the WHO daily guideline (15).

PM2.5 peak32 µg/m³
Days over the guideline2 days
PM1040 µg/m³
Optical depth0.66
20 Jul22 Jul24 Jul26 Jul
Good Fair Moderate Poor Very poor Extremely poor

Particles from the Copernicus CAMS model at the centre of the perimeter; these are not measurements in each town. The pale bar is the worst hour, the solid one the daily average.

Open-Meteo.com (CC BY 4.0) · Copernicus Atmosphere Monitoring Service (CAMS)

Other fires nearby

All fires in Ukraine

Frequently asked questions

How long did the Yasynuvata fire last?
Copernicus dates it between 22 July 2025 and 24 July 2025: 3 days between the first and last image with fire.
How much area did it burn?
The perimeter Copernicus measured from satellite imagery is 474 hectares (4.7 km²). Official national figures may differ.
Which municipalities burned?
The fire only entered Yasynuvata (474 ha, 0.4 %).
What was the weather like?
During the fire the temperature reached 32.8 °C, humidity dropped to 27 % and gusts hit 47 km/h. The fire danger index (FWI) reached 30, class High.
Where does this data come from?
From the EFFIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Ukraine (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: 53. Their median duration was 2 days and their median area 189 ha; 8 % went past 1,000 ha. Only 11 of its 53 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 12 of 53, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 3.2 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: 101 · 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.

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.

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 101 · 112.

How we know this
  • Perimeter: EFFIS (Copernicus), mapped on satellite imagery.
  • Dates from the perimeter: the VIIRS detections inside it did not change them. No 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 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 (Public Domain). 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.