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Busk fire, January 2025 Буський район · Busk, Radekhiv

Out · last measured on 20 Jan 2025

The fire started on 20 January 2025 in Busk, Ukraine, and satellites saw it burning for 1 day. Copernicus mapped a burnt perimeter of 107 hectares from satellite imagery, spread across 2 municipalities.

It is the 96th largest in Lviv Oblast since 2016 (of 105 with a page). Number 1264 in Ukraine in 2025, of 1359.

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
107ha
Copernicus perimeter
Duration
1day
20 Jan 2025 – 20 Jan 2025
Municipalities hit
2
districts
Started on
20 Jan
2025
Danger at start
0
Very low · FWI index

Where it burned

The weather it burned in

7°high
15km/h · peak gust
66%lowest humidity

It had gone 4 days without rain (1 mm or more) when it started. Rain came after the fire: 2.1 mm on 29 Jan.

This area had burned before

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

What happened to each town

  1. Busk Буський район 25.7 km from the town where it started
    81 ha
    0.1 %
  2. Radekhiv Радехівський район 24.4 km from the town
    26 ha
    0.0 %

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

  • Other natural land41 %
  • Agricultural areas40 %
  • Mixed forest19 %

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)
20 Jan 7.4 °C 66 % 15 km/h 0.0 mm Very low 0
21 Jan after 3.6 °C 85 % 18 km/h 0.0 mm Very low 0
22 Jan after 1.6 °C 91 % 18 km/h 0.1 mm Very low 0
23 Jan after 5.7 °C 75 % 28 km/h 0.0 mm Very low 0
24 Jan after 4.1 °C 84 % 24 km/h 0.4 mm Very low 0
25 Jan after 4.9 °C 80 % 34 km/h 0.0 mm Very low 0
26 Jan after 8.5 °C 67 % 33 km/h 0.0 mm Very low 0
27 Jan after 11.5 °C 59 % 30 km/h 0.0 mm Very low 0
28 Jan after 11.7 °C 63 % 34 km/h 0.0 mm Very low 1
29 Jan after 13.2 °C 58 % 46 km/h 2.1 mm Very low 0

Before and after, from space

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

Before · 13 Jan 2025
After · 27 Jan 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 22 January 2025 the air beside the fire reached 50 µg/m³ of PM2.5. That day averaged 37: 2.4 times the WHO daily guideline (15).

PM2.5 peak50 µg/m³
Days over the guideline6 days
PM1052 µg/m³
Optical depth0.33
181920212223
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 Busk fire last?
Copernicus dates it between 20 January 2025 and 20 January 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 107 hectares (1.1 km²). Official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Busk (81 ha, 0.1 %); Radekhiv (26 ha, 0.0 %).
Did the fire reach a town?
The closest fire to a town centre came within 24.4 km of Radekhiv. 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 7.4 °C, humidity dropped to 66 % and gusts hit 15 km/h. The fire danger index (FWI) reached 0, 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

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
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.

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.