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Kotel fire, August 2024 Котел · Kotel

Out · last detection 17 Aug 2024, 12:19 UTC

The fire started on 17 August 2024 in Kotel, Bulgaria, and satellites saw it burning for 1 day. Copernicus mapped a burnt perimeter of 130 hectares from satellite imagery, spread across a single municipality.

It is the 7th largest in Sliven since 2016 (of 10 with a page). Number 52 in Bulgaria in 2024, of 62.

The power measured by the satellite is low (26.3 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
130ha
Copernicus perimeter
Duration
1day
17 Aug 2024 – 17 Aug 2024
Municipalities hit
1
municipalities
Started on
17 Aug
2024
Heat detections
12
in a single hotspot: 26 MW
Danger at start
26
High · FWI index
Average daily power
112MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 17 Aug17 Aug

How it evolved, day by day

17 Aug 2024 · 112 MW · 12

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
34km/h · peak gust
31%lowest humidity

It had gone 11 days without rain (1 mm or more) when it started.

This area had burned before

90% of the perimeter overlaps earlier fires recorded since 2016: 96 ha in 2019, 111 ha in 2022, 49 ha in 2023. Part of it burned more than once, so the yearly figures add up to more than the 117 ha that had burned before.

What happened to each town

  1. Kotel Котел 15,704 inhabitants · 18.1 km from the centre where it started
    130 ha reached on 17 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 land100 %

Natura 2000 protected area affected: 100 %

Natura 2000 sites (European Environment Agency, 2024 release) crossed by the perimeter.

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)
17 Aug 31.7 °C 31 % 34 km/h 0.0 mm High 26
18 Aug after 29.8 °C 36 % 33 km/h 0.0 mm High 25
19 Aug after 30.7 °C 29 % 26 km/h 0.0 mm High 25
20 Aug after 30.3 °C 39 % 26 km/h 0.3 mm High 24
21 Aug after 31.9 °C 27 % 28 km/h 0.0 mm High 26
22 Aug after 32.7 °C 29 % 39 km/h 0.0 mm High 31
23 Aug after 33.1 °C 33 % 20 km/h 0.0 mm High 28
24 Aug after 32.7 °C 34 % 30 km/h 0.0 mm High 32
25 Aug after 31.8 °C 32 % 41 km/h 0.1 mm High 33
26 Aug after 31.6 °C 29 % 48 km/h 0.0 mm High 37
27 Aug after 31.2 °C 26 % 36 km/h 0.2 mm High 33

Before and after, from space

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

Before · 10 Aug 2024
After · 24 Aug 2024

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 20 August 2024 the air beside the fire reached 9 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).

PM2.5 peak9 µg/m³
Days over the guideline0 days
PM1010 µg/m³
Optical depth0.29
151617181920
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 · 12Every 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 Bulgaria ›

Frequently asked questions

How long did the Kotel fire last?
Copernicus dates it between 17 August 2024 and 17 August 2024: 1 day between the first and last image with fire.
How much area did it burn?
The perimeter Copernicus measured from satellite imagery is 130 hectares (1.3 km²). Official national figures may differ.
Which municipalities burned?
The fire only entered Kotel (130 ha, 0.2 %).
Did the fire reach a town?
The fire started in Kotel and came within 18.1 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 31.7 °C, humidity dropped to 31 % and gusts hit 34 km/h. The fire danger index (FWI) reached 26, class High.
Where does this data come from?
From the EFFIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Bulgaria (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: 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.

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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 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. 12 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.