Mena fire, March 2021 Менський район · Mena
The fire started on 27 March 2021 in Mena, Ukraine, and satellites saw it burning for 2 days. Copernicus mapped a burnt perimeter of 456 hectares from satellite imagery, spread across a single municipality.
This entry is probably an agricultural burn of stubble, meadow or peatland, not a wildfire. Before the war, stubble and meadows in Ukraine were burnt every spring and autumn, and the fire often got out of hand. This is our assumption, based on the time of year, ground with almost no woodland and the lack of news about this fire; it is not confirmed. That is why it is left out of the wildfire rankings.
The power measured by the satellite is low (19.6 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
- 456ha
- Copernicus perimeter
- Duration
- 2days
- 27 Mar 2021 – 28 Mar 2021
- Municipalities hit
- 1
- districts
- Started on
- 27 Mar
- 2021
- Heat detections
- 16
- in a single hotspot: 20 MW
- Danger at start
- 2
- Very low · FWI index
- Energy released
- 130MW
- 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 3 days without rain (1 mm or more) when it started. Rain came after the fire: 1.4 mm on 29 Mar.
This area had burned before
No earlier perimeters overlap this fire since 2016, when the satellite record begins.
What happened to each town
-
454 ha reached on 27 Mar0.3 %
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 land50 %
- Agricultural areas31 %
- 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) |
|---|---|---|---|---|---|
| 27 Mar | 13.4 °C | 36 % | 31 km/h | 0.0 mm | Very low 2 |
| 28 Mar | 14.3 °C | 34 % | 28 km/h | 0.2 mm | Very low 3 |
| 29 Mar after | 9.9 °C | 54 % | 22 km/h | 1.4 mm | Very low 0 |
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 27 March 2021 the air beside the fire reached 24 µg/m³ of PM2.5. That day averaged 19: 1.3 times the WHO daily 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
- 535 haKulykivka Куликівський районMay 2026 · 1 day · 15 km away
- 413 haKulykivka Куликівський район22 March 2026 · 1 day · 16 km away
- 1,193 haSosnytsia Сосницький район22 March 2026 · 1 day · 27 km away
- 509 haChernihiv Чернігів14 April 2025 · 3 days · 27 km away
- 532 haSosnytsia Сосницький районMarch 2022 · 4 days · 35 km away
- 406 haChernihiv Чернігів20 March 2022 · 2 days · 35 km away
Frequently asked questions
- How long did the Mena fire last?
- Copernicus dates it between 27 March 2021 and 28 March 2021: 2 days between the first and last image with fire.
- How much area did it burn?
- The perimeter Copernicus measured from satellite imagery is 456 hectares (4.6 km²). Official national figures may differ.
- Which municipalities burned?
- The fire only entered Mena (454 ha, 0.3 %).
- Did the fire reach a town?
- The closest fire to a town centre came within 9.6 km of Mena. 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 14.3 °C, humidity dropped to 34 % and gusts hit 31 km/h. The fire danger index (FWI) reached 3, 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
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.