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Sarny fire, 13 February 2025 Сарненський район · Sarny

Out · last detection 13 Feb 2025, 11:06 UTC

The fire started on 13 February 2025 in Sarny, Ukraine, and satellites saw it burning for 5 days. Copernicus mapped a burnt perimeter of 1,560 hectares from satellite imagery, spread across a single municipality.

It is the 6th largest in Rivne Oblast since 2016 (of 167 with a page). Number 31 in Ukraine in 2025, of 1359.

The power measured by the satellite is low (15.4 MW in the strongest hotspot), more typical of grass or stubble burning, or a slow surface fire, than of a large crown fire.

Compare with…
Burnt area
1,560ha
Copernicus perimeter
Duration
5days
13 Feb 2025 – 17 Feb 2025
Municipalities hit
1
districts
Started on
13 Feb
2025
Heat detections
1
in a single hotspot: 15 MW
Danger at start
1
Very low · FWI index
Average daily power
15MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 13 Feb17 Feb

How it evolved, day by day

13 Feb 2025 · 15 MW · 1

Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.

The weather it burned in

3°high
39km/h · peak gust
34%lowest humidity

It had gone 9 days without rain (1 mm or more) when it started. Rain came after the fire: 1.0 mm on 19 Feb.

This area had burned before

66% of the perimeter overlaps earlier fires recorded since 2016: 560 ha in 2020, 971 ha in 2021, 59 ha in 2023. Part of it burned more than once, so the yearly figures add up to more than the 1,035 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 1% of the area of London (16 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. Sarny Сарненський район 33.6 km from the centre where it started
    1,561 ha reached on 13 Feb
    0.7 %

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

  • Other natural land48 %
  • Mixed forest24 %
  • Agricultural areas23 %
  • Broadleaved forest3.9 %
  • Coniferous forest1.3 %

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)
13 Feb 2.9 °C 34 % 22 km/h 0.0 mm Very low 1
14 Feb 0.3 °C 59 % 39 km/h 6.2 mm Very low 0
15 Feb -3.5 °C 51 % 37 km/h 0.0 mm Very low 0
16 Feb -3.2 °C 54 % 21 km/h 1.0 mm Very low 0
17 Feb -3.2 °C 53 % 30 km/h 0.0 mm Very low 0
18 Feb after -2.3 °C 47 % 30 km/h 0.0 mm Very low 0
19 Feb after -1.6 °C 71 % 35 km/h 1.0 mm Very low 0

Before and after, from space

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

Before · 6 Feb 2025
After · 24 Feb 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 14 February 2025 the air beside the fire reached 20 µg/m³ of PM2.5. That day averaged 15: 1.0 times the WHO daily guideline (15).

PM2.5 peak20 µg/m³
Days over the guideline0 days
PM1020 µg/m³
Optical depth0.33
11121314151617181920
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)

Detections table · 1Every 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 Ukraine ›

Frequently asked questions

How long did the Sarny fire last?
Copernicus dates it between 13 February 2025 and 17 February 2025: 5 days between the first and last image with fire.
How much area did it burn?
The perimeter Copernicus measured from satellite imagery is 1,560 hectares (15.6 km²). Official national figures may differ.
Which municipalities burned?
The fire only entered Sarny (1,561 ha, 0.7 %).
Did the fire reach a town?
The fire started in Sarny and came within 33.6 km of its centre. That is the distance from the perimeter, or the nearest hotspot, to the point marking the centre; it does not mean it entered the houses.
What was the weather like?
During the fire the temperature reached 2.9 °C, humidity dropped to 34 % and gusts hit 39 km/h. The fire danger index (FWI) reached 1, class Very low.
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 · 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

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. One Suomi-NPP VIIRS detection 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.