Sarny fire, April 2025 Сарненський район · Sarny
The fire started on 22 April 2025 in Sarny, Ukraine, and satellites saw it burning for 1 day. Copernicus mapped a burnt perimeter of 358 hectares from satellite imagery, spread across a single municipality.
It is the 53th largest in Rivne Oblast since 2016 (of 167 with a page). Number 312 in Ukraine in 2025, of 1359.
- Burnt area
- 358ha
- Copernicus perimeter
- Duration
- 1day
- 22 Apr 2025 – 22 Apr 2025
- Municipalities hit
- 1
- districts
- Started on
- 22 Apr
- 2025
- Heat detections
- 16
- in a single hotspot: 61 MW
- Danger at start
- 14
- Moderate · FWI index
- Energy released
- 223MW
- sum of detected power
Where it burned
How it evolved, day by day
Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.
The weather it burned in
It had gone 5 days without rain (1 mm or more) when it started. Rain came after the fire: 4.1 mm on 25 Apr.
This area had burned before
46% of the perimeter overlaps earlier fires recorded since 2016: 41 ha in 2020, 160 ha in 2021. Part of it burned more than once, so the yearly figures add up to more than the 166 ha that had burned before.
- 91 ha Sarny fire, October 2021 1,703 ha in total; the hectares shown are those it shares with this fire
- 69 ha Sarny fire, October 2021 123 ha in total; the hectares shown are those it shares with this fire
- 41 ha Sarny fire, March 2020 617 ha in total; the hectares shown are those it shares with this fire
What happened to each town
-
358 ha reached on 22 Apr0.2 %
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
- Mixed forest77 %
- Other natural land14 %
- Broadleaved forest7.6 %
- Agricultural areas1.1 %
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 Apr | 27.6 °C | 20 % | 21 km/h | 0.0 mm | Moderate 14 |
| 23 Apr after | 24.0 °C | 43 % | 27 km/h | 0.3 mm | Moderate 12 |
| 24 Apr after | 22.9 °C | 42 % | 25 km/h | 0.1 mm | Low 11 |
| 25 Apr after | 17.0 °C | 59 % | 38 km/h | 4.1 mm | Very low 1 |
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.
The smoke
CAMS · CopernicusOn 22 April 2025 the air beside the fire reached 15 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).
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)
Detections table · 16Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
- 2,025 haSarny Сарненський район26 February 2025 · 5 days · 2 km away
- 1,703 haSarny Сарненський район21 October 2021 · 6 days · 4 km away
- 1,322 haSarny Сарненський район6 April 2020 · 6 days · 5 km away
- 1,524 haSarny Сарненський район21 October 2021 · 5 days · 7 km away
- 1,560 haSarny Сарненський район13 February 2025 · 5 days · 8 km away
- 1,403 haDubrovytsia Дубровицький район4 March 2025 · 5 days · 8 km away
Frequently asked questions
- How long did the Sarny fire last?
- Copernicus dates it between 22 April 2025 and 22 April 2025: 1 day between the first and last image with fire.
- How much area did it burn?
- The perimeter Copernicus measured from satellite imagery is 358 hectares (3.6 km²). Official national figures may differ.
- Which municipalities burned?
- The fire only entered Sarny (358 ha, 0.2 %).
- Did the fire reach a town?
- The closest fire to a town centre came within 34.3 km of Sarny. That is the distance to the perimeter or nearest hotspot; it does not mean it entered the houses.
- What was the weather like?
- During the fire the temperature reached 27.6 °C, humidity dropped to 20 % and gusts hit 21 km/h. The fire danger index (FWI) reached 14, class Moderate.
- 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.
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
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 (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.