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Grad Knin fire, August 2024 Grad Knin

Out · last detection 18 Aug 2024, 12:01 UTC

The fire started on 16 August 2024 in Grad Knin, Croatia, and satellites saw it burning for 3 days. Copernicus mapped a burnt perimeter of 1,986 hectares from satellite imagery, spread across a single municipality.

It is the 6th largest in Šibenik-Knin since 2016 (of 56 with a page). Number 3 in Croatia in 2024, of 14.

Compare with…
Burnt area
1,986ha
Copernicus perimeter
Duration
3days
16 Aug 2024 – 18 Aug 2024
Municipalities hit
1
municipalities
Started on
16 Aug
2024
Heat detections
65
in a single hotspot: 39 MW
Danger at start
42
Very high · FWI index
Average daily power
176MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 16 Aug18 Aug
18 Aug 2024

How it evolved, day by day

16 Aug 2024 · 177 MW · 19 17 Aug 2024 · 225 MW · 39 18 Aug 2024 · 124 MW · 7
16 Aug 17 Aug 18 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
41km/h · peak gust
26%lowest humidity

It had gone 7 days without rain (1 mm or more) when it started. Rain came after the fire: 31.6 mm on 19 Aug.

This area had burned before

40% of the perimeter overlaps earlier fires recorded since 2016: 759 ha in 2017, 38 ha in 2021.

How big is it?

10 km
It burned the equivalent of 1.3% of the area of London (20 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. Grad Knin where it started
    1,986 ha reached on 16 Aug
    5.4 %

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

  • Scrub and transitional woodland75 %
  • Other natural land25 %

Natura 2000 protected area affected: 24 %

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)
16 Aug 32.5 °C 26 % 41 km/h 0.0 mm Very high 42
17 Aug 30.9 °C 32 % 41 km/h 0.6 mm High 29
18 Aug 27.7 °C 38 % 34 km/h 10.9 mm Low 6
19 Aug after 22.6 °C 69 % 26 km/h 31.6 mm Very low 0

Before and after, from space

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

Before · 9 Aug 2024
After · 25 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 26 µg/m³ of PM2.5. That day averaged 17: 1.1 times the WHO daily guideline (15).

PM2.5 peak26 µg/m³
Days over the guideline2 days
PM1044 µg/m³
Optical depth0.48
1415161718192021
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 · 65Every 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 Croatia ›

Frequently asked questions

How long did the Grad Knin fire last?
Copernicus dates it between 16 August 2024 and 18 August 2024: 3 days between the first and last image with fire.
How much area did it burn?
The perimeter Copernicus measured from satellite imagery is 1,986 hectares (19.9 km²). Official national figures may differ.
Which municipalities burned?
The fire only entered Grad Knin (1,986 ha, 5.4 %).
What was the weather like?
During the fire the temperature reached 32.5 °C, humidity dropped to 26 % and gusts hit 41 km/h. The fire danger index (FWI) reached 42, class Very high.
Where does this data come from?
From the EFFIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Croatia (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 · 193 · 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 112 · 193.

How we know this
  • Perimeter: EFFIS (Copernicus), mapped on satellite imagery.
  • Dates from the perimeter: the VIIRS detections inside it did not change them. 65 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-ShareAlike 2.0). 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.