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Kochani fire, 2 August 2021 Општина Кочани · Kochani

Out · last detection 3 Aug 2021, 10:51 UTC

The fire started on 2 August 2021 in Kochani, North Macedonia, and satellites saw it burning for 4 days. Copernicus mapped a burnt perimeter of 186 hectares from satellite imagery, spread across a single municipality.

It is the 22th largest in East since 2016 (of 34 with a page). Number 25 in North Macedonia in 2021, of 36.

The power measured by the satellite is low (6.2 MW in the strongest hotspot), more typical of grass or stubble burning, or a slow surface fire, than of a large crown fire.

Compare with…
Burnt area
186ha
Copernicus perimeter
Duration
4days
2 Aug 2021 – 5 Aug 2021
Municipalities hit
1
municipalities
Started on
2 Aug
2021
Heat detections
13
in a single hotspot: 6 MW
Danger at start
36
High · FWI index
Average daily power
20MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 2 Aug5 Aug
3 Aug 2021

How it evolved, day by day

2 Aug 2021 · 15 MW · 6 3 Aug 2021 · 24 MW · 7
2 Aug 3 Aug

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
51km/h · peak gust
18%lowest humidity

It had gone 4 days without rain (1 mm or more) when it started. Rain came after the fire: 2.0 mm on 5 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. Kochani Општина Кочани 31,602 inhabitants · 10.1 km from the centre where it started
    186 ha reached on 2 Aug
    0.5 %

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

  • Broadleaved forest39 %
  • Scrub and transitional woodland34 %
  • Agricultural areas27 %

Land cover inside the perimeter according to Corine Land Cover, as reported by Copernicus.

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)
2 Aug 33.7 °C 18 % 51 km/h 0.3 mm High 36
3 Aug 30.5 °C 25 % 31 km/h 0.0 mm High 28
4 Aug 32.1 °C 21 % 32 km/h 0.0 mm High 30
5 Aug 31.7 °C 27 % 60 km/h 2.0 mm High 22

Before and after, from space

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

Before · 26 Jul 2021
After · 12 Aug 2021

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 5 August 2021 the air beside the fire reached 23 µg/m³ of PM2.5. That day averaged 20: 1.3 times the WHO daily guideline (15).

PM2.5 peak23 µg/m³
Days over the guideline2 days
PM1055 µg/m³
31123456
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 · 13Every 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 North Macedonia ›

Frequently asked questions

How long did the Kochani fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 2 August 2021 to 5 August 2021 (4 days). The perimeter dates it from 2 August 2021 to 3 August 2021.
How much area did it burn?
The perimeter Copernicus measured from satellite imagery is 186 hectares (1.9 km²). Official national figures may differ.
Which municipalities burned?
The fire only entered Kochani (186 ha, 0.5 %).
Did the fire reach a town?
The fire started in Kochani and came within 10.1 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 33.7 °C, humidity dropped to 18 % and gusts hit 51 km/h. The fire danger index (FWI) reached 36, class High.
Where does this data come from?
From the EFFIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of North Macedonia (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: 193 · 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 193 · 112.

How we know this
  • Perimeter: EFFIS (Copernicus), mapped on satellite imagery.
  • Dates adjusted with the VIIRS detections inside the perimeter, which said 2 August 2021 to 3 August 2021. 13 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 (Creative Commons Attribution 4.0 International (CC BY 4.0)). 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.