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Chashka fire, August 2026 Општина Чашка · Chashka

Out · last detection 30 Aug 2026, 00:35 UTC

The fire started on 25 August 2026 in Chashka, North Macedonia, and satellites saw it burning for 6 days. Copernicus mapped a burnt perimeter of 138 hectares from satellite imagery, spread across a single municipality.

It is the 42th largest in Vardar since 2016 (of 49 with a page). Number 32 in North Macedonia in 2026, of 40.

The power measured by the satellite is low (11.9 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
138ha
Copernicus perimeter
Duration
≈ 6days
25 Aug 2026 – 30 Aug 2026
Municipalities hit
1
municipalities
Started on
25 Aug
2026
Heat detections
14
in a single hotspot: 12 MW
Danger at start
34
High · FWI index
Average daily power
8MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 25 Aug30 Aug
30 Aug 2026

How it evolved, day by day

25 Aug 2026 · 12 MW · 1 26 Aug 2026 · 4 MW · 1 28 Aug 2026 · 11 MW · 5 29 Aug 2026 · 9 MW · 5 30 Aug 2026 · 3 MW · 2
25 Aug 26 Aug 28 Aug 29 Aug 30 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

32°high
27km/h · peak gust
23%lowest humidity

It had gone 33 days without rain (1 mm or more) when it started. Rain came after the fire: 1.8 mm on 29 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. Chashka Општина Чашка 7,942 inhabitants · 16.8 km from the centre where it started
    139 ha reached on 25 Aug
    0.2 %

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

  • Other natural land62 %
  • Broadleaved forest38 %

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)
25 Aug 32.3 °C 23 % 27 km/h 0.0 mm High 34
26 Aug 30.8 °C 29 % 26 km/h 0.0 mm High 34
27 Aug 31.5 °C 32 % 16 km/h 0.0 mm High 30
28 Aug 34.2 °C 25 % 28 km/h 0.0 mm High 35
29 Aug 31.8 °C 44 % 23 km/h 1.8 mm Moderate 12

Before and after, from space

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

Before · 18 Aug 2026
After · 6 Sept 2026

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 23 August 2026 the air beside the fire reached 21 µg/m³ of PM2.5. That day averaged 17: 1.2 times the WHO daily guideline (15).

PM2.5 peak21 µg/m³
Days over the guideline1 day
PM1042 µg/m³
Optical depth0.71
232425262728
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 · 14Every 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 Chashka fire last?
The official perimeter only gives the start date (25 August 2026). The end comes from the heat detections inside the perimeter: it burned until 30 August 2026 (6 days from 25 August 2026), the last day with detections before more than 10 days in a row without any, so it is approximate.
How much area did it burn?
The perimeter Copernicus measured from satellite imagery is 138 hectares (1.4 km²). Official national figures may differ.
Which municipalities burned?
The fire only entered Chashka (139 ha, 0.2 %).
Did the fire reach a town?
The fire started in Chashka and came within 16.8 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 32.3 °C, humidity dropped to 23 % and gusts hit 27 km/h. The fire danger index (FWI) reached 34, 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.
  • The official perimeter has no end date: the end is the last day with VIIRS detections inside the perimeter before a gap of more than 10 days (150 days at most), so it is approximate. 14 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.