Kozelets fire, 17 April 2026 Козелецький район · Kozelets
The fire started on 17 April 2026 in Kozelets, Ukraine, and satellites saw it burning for 1 day. Copernicus mapped a burnt perimeter of 110 hectares from satellite imagery, spread across a single municipality.
It is the 143th largest in Chernihiv Oblast since 2016 (of 156 with a page). Number 890 in Ukraine in 2026, of 984.
The power measured by the satellite is low (2.6 MW in the strongest hotspot), more typical of grass or stubble burning, or a slow surface fire, than of a large crown fire.
- Burnt area
- 110ha
- Copernicus perimeter
- Duration
- 1day
- 17 Apr 2026 – 17 Apr 2026
- Municipalities hit
- 1
- districts
- Started on
- 17 Apr
- 2026
- Heat detections
- 3
- in a single hotspot: 3 MW
- Danger at start
- 6
- Low · FWI index
- Energy released
- 8MW
- 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 4 days without rain (1 mm or more) when it started. Rain came after the fire: 2.0 mm on 23 Apr.
This area had burned before
No earlier perimeters overlap this fire since 2016, when the satellite record begins.
What happened to each town
-
110 ha reached on 17 Apr0.0 %
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 land66 %
- Agricultural areas30 %
- Mixed forest3.6 %
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) |
|---|---|---|---|---|---|
| 17 Apr | 14.1 °C | 44 % | 32 km/h | 0.0 mm | Low 6 |
| 18 Apr after | 12.6 °C | 54 % | 35 km/h | 0.4 mm | Low 6 |
| 19 Apr after | 11.5 °C | 40 % | 40 km/h | 0.0 mm | Low 7 |
| 20 Apr after | 9.0 °C | 37 % | 27 km/h | 0.0 mm | Low 5 |
| 21 Apr after | 9.3 °C | 43 % | 32 km/h | 0.8 mm | Very low 4 |
| 22 Apr after | 14.8 °C | 22 % | 31 km/h | 0.0 mm | Low 8 |
| 23 Apr after | 9.2 °C | 37 % | 66 km/h | 2.0 mm | Very low 4 |
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 16 April 2026 the air beside the fire reached 10 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 · 3Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
- 550 haKozelets Козелецький районAugust 2025 · 4 days · 8 km away
- 745 haVyshhorod4 July 2025 · 4 days · 21 km away
- 943 haKozelets Козелецький район20 March 2021 · 4 days · 22 km away
- 700 haChernihiv Чернігів16 May 2022 · 3 days · 29 km away
- 639 haVyshhorod12 September 2025 · 3 days · 29 km away
- 1,285 haChernihiv ЧернігівMarch 2021 · 3 days · 39 km away
Frequently asked questions
- How long did the Kozelets fire last?
- Copernicus dates it between 17 April 2026 and 17 April 2026: 1 day between the first and last image with fire.
- How much area did it burn?
- The perimeter Copernicus measured from satellite imagery is 110 hectares (1.1 km²). Official national figures may differ.
- Which municipalities burned?
- The fire only entered Kozelets (110 ha, 0.0 %).
- Did the fire reach a town?
- The closest fire to a town centre came within 24.8 km of Kozelets. 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 14.1 °C, humidity dropped to 44 % and gusts hit 32 km/h. The fire danger index (FWI) reached 6, class 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
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.