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Ovruch fire, 16 April 2020 Овруцький район · Ovruch

Out · last detection 17 Apr 2020, 10:21 UTC

The fire started on 16 April 2020 in Ovruch, Ukraine, and satellites saw it burning for 4 days. Copernicus mapped a burnt perimeter of 725 hectares from satellite imagery, spread across a single municipality.

It is the 31th largest in Zhytomyr Oblast since 2016 (of 179 with a page). Number 49 in Ukraine in 2020, of 132.

Compare with…
Burnt area
725ha
Copernicus perimeter
Duration
4days
16 Apr 2020 – 19 Apr 2020
Municipalities hit
1
districts
Started on
16 Apr
2020
Heat detections
28
in a single hotspot: 63 MW
Danger at start
29
High · FWI index
Average daily power
165MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 16 Apr19 Apr
17 Apr 2020

How it evolved, day by day

16 Apr 2020 · 291 MW · 9 17 Apr 2020 · 39 MW · 19
16 Apr 17 Apr

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

The weather it burned in

18°high
78km/h · peak gust
19%lowest humidity

It had gone one day without rain (1 mm or more) when it started. Rain came after the fire: 1.4 mm on 25 Apr.

This area had burned before

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

How big is it?

10 km
It burned the equivalent of 0.5% of the area of London (7.2 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. Ovruch Овруцький район 55,608 inhabitants · 5.6 km from the centre where it started
    723 ha reached on 16 Apr
    0.3 %

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

  • Coniferous forest49 %
  • Mixed forest33 %
  • Agricultural areas9.5 %
  • Other natural land8.4 %

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)
16 Apr 18.4 °C 22 % 78 km/h 0.0 mm High 29
17 Apr 12.4 °C 19 % 54 km/h 0.0 mm High 24
18 Apr 10.8 °C 23 % 44 km/h 0.0 mm Moderate 20
19 Apr 12.2 °C 23 % 47 km/h 0.0 mm Moderate 21
20 Apr after 9.3 °C 32 % 46 km/h 0.0 mm Moderate 20
21 Apr after 10.7 °C 29 % 40 km/h 0.0 mm Moderate 19
22 Apr after 16.5 °C 20 % 46 km/h 0.2 mm High 23
23 Apr after 18.9 °C 18 % 38 km/h 0.0 mm High 24
24 Apr after 19.6 °C 18 % 52 km/h 0.0 mm High 29
25 Apr after 19.1 °C 29 % 40 km/h 1.4 mm Low 11

Before and after, from space

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

Before · 9 Apr 2020
After · 26 Apr 2020

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 18 April 2020 the air beside the fire reached 30 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).

PM2.5 peak30 µg/m³
Days over the guideline0 days
PM1039 µg/m³
141516171819202122
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 · 28Every 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 Ovruch fire last?
Copernicus dates it between 16 April 2020 and 19 April 2020: 4 days between the first and last image with fire.
How much area did it burn?
The perimeter Copernicus measured from satellite imagery is 725 hectares (7.2 km²). Official national figures may differ.
Which municipalities burned?
The fire only entered Ovruch (723 ha, 0.3 %).
Did the fire reach a town?
The fire started in Ovruch and came within 5.6 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 18.4 °C, humidity dropped to 19 % and gusts hit 78 km/h. The fire danger index (FWI) reached 29, class 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 · 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. 28 Suomi-NPP VIIRS detections 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.