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Polohy fire, July 2025 Пологівський район · Polohy

Out · last detection 29 Jul 2025, 10:53 UTC

The fire started on 29 July 2025 in Polohy, Ukraine, and satellites saw it burning for 1 day. Copernicus mapped a burnt perimeter of 142 hectares from satellite imagery, spread across a single municipality.

It is the 315th largest in Zaporizhzhia Oblast since 2016 (of 490 with a page). Number 948 in Ukraine in 2025, of 1359.

The power measured by the satellite is low (6.4 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
142ha
Copernicus perimeter
Duration
1day
29 Jul 2025 – 29 Jul 2025
Municipalities hit
1
districts
Started on
29 Jul
2025
Heat detections
2
in a single hotspot: 6 MW
Danger at start
43
Very high · FWI index
Energy released
10MW
sum of detected power

Where it burned

HOTSPOTS BY DAY 29 Jul29 Jul

How it evolved, day by day

29

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

The weather it burned in

34°high
48km/h · peak gust
19%lowest humidity

It had gone 5 days without rain (1 mm or more) when it started. Rain came after the fire: 9.2 mm on 3 Aug.

This area had burned before

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

What happened to each town

  1. Polohy Пологівський район 39,115 inhabitants · 21.2 km from the town where it started
    142 ha reached on 29 Jul
    0.1 %

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

  • Agricultural areas71 %
  • Other natural land23 %
  • Mixed forest5.5 %
  • Artificial surfaces0.7 %

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)
29 Jul 34.1 °C 19 % 48 km/h 0.0 mm Very high 43
30 Jul after 35.0 °C 32 % 43 km/h 0.0 mm Very high 40
31 Jul after 26.5 °C 50 % 38 km/h 0.0 mm High 26
1 Aug after 27.4 °C 41 % 36 km/h 0.0 mm High 25
2 Aug after 30.2 °C 32 % 40 km/h 0.0 mm High 30
3 Aug after 23.8 °C 48 % 35 km/h 9.2 mm Very low 4

Before and after, from space

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

Before · 22 Jul 2025
After · 5 Aug 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 30 July 2025 the air beside the fire reached 19 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).

PM2.5 peak19 µg/m³
Days over the guideline0 days
PM1024 µg/m³
Optical depth0.38
27282930311
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 · 2Every 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 Polohy fire last?
Copernicus dates it between 29 July 2025 and 29 July 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 142 hectares (1.4 km²). Official national figures may differ.
Which municipalities burned?
The fire only entered Polohy (142 ha, 0.1 %).
Did the fire reach a town?
The closest fire to a town centre came within 21.2 km of Polohy. 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 34.1 °C, humidity dropped to 19 % and gusts hit 48 km/h. The fire danger index (FWI) reached 43, class Very high.
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
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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.