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Cook fire, 4 September 2020 Cook

Out · last detection 12 Sept 2020, 16:31 UTC

The fire started on 4 September 2020 in Cook, Australia, and satellites saw it burning for 10 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 5,978 hectares from heat detections, spread across a single municipality.

It is the 1406th largest in Queensland since 2016 (of 1737 with a page). Number 248 in Australia in 2020, of 320.

Compare with…
Burnt area
5,978ha
GWIS perimeter (Copernicus)
Duration
10days
4 Sept 2020 – 13 Sept 2020
Municipalities hit
1
local government areas
Started on
4 Sept
2020
Heat detections
184
in a single hotspot: 63 MW
Danger at start
17
Moderate · FWI index
Average daily power
140MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 4 Sept13 Sept
12 Sept 2020

How it evolved, day by day

4 Sept 2020 · 26 MW · 10 5 Sept 2020 · 198 MW · 30 6 Sept 2020 · 295 MW · 23 7 Sept 2020 · 167 MW · 20 8 Sept 2020 · 92 MW · 26 9 Sept 2020 · 74 MW · 6 10 Sept 2020 · 157 MW · 27 11 Sept 2020 · 72 MW · 12 12 Sept 2020 · 177 MW · 30
4 Sept 6 Sept 8 Sept 10 Sept 12 Sept

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

The weather it burned in

25°high
68km/h · peak gust
50%lowest humidity

It had gone 4 days without rain (1 mm or more) when it started. Rain came after the fire: 3.0 mm on 14 Sept.

This area had burned before

80% of the perimeter overlaps earlier fires recorded since 2016: 472 ha in 2016, 111 ha in 2017, 5,010 ha in 2018, 9 ha in 2019. Part of it burned more than once, so the yearly figures add up to more than the 4,787 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 3.8% of the area of London (60 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. Cook where it started
    6,066 ha reached on 4 Sept
    0.1 %

Burnt area inside each municipality, from crossing the GWIS 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.

People and buildings inside the perimeter

GHSL 2020
Built-up area0.11 ha
Residents< 20

Inside the perimeter there were about 0.11 hectares of built-up land and almost nobody lived there (GHSL 2020, satellite-based estimate).

This is an estimate on 100 m cells, made from satellite imagery and census data: it does not mean that homes burned or that anyone was harmed. The perimeter also contains land that never burned.

Source: Global Human Settlement Layer (GHS-BUILT-S and GHS-POP R2023A), European Commission Joint Research Centre (JRC), © European Union, CC BY 4.0. Sum inside the perimeter computed by WorldFires. human-settlement.emergency.copernicus.eu

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)
4 Sept 25.1 °C 62 % 56 km/h 0.0 mm Moderate 17
5 Sept 25.4 °C 58 % 52 km/h 0.0 mm Moderate 17
6 Sept 25.1 °C 57 % 57 km/h 0.0 mm Moderate 18
7 Sept 25.2 °C 64 % 68 km/h 0.2 mm High 23
8 Sept 24.2 °C 65 % 65 km/h 0.1 mm Moderate 21
9 Sept 23.6 °C 70 % 58 km/h 2.1 mm Low 8
10 Sept 23.4 °C 63 % 62 km/h 2.4 mm Low 8
11 Sept 24.8 °C 50 % 51 km/h 0.4 mm Moderate 13
12 Sept 24.5 °C 59 % 55 km/h 0.2 mm Moderate 16
13 Sept 23.0 °C 70 % 58 km/h 1.4 mm Low 9
14 Sept after 23.8 °C 69 % 62 km/h 3.0 mm Low 6

Before and after, from space

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

Before · 28 Aug 2020
After · 20 Sept 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.

Detections table · 184Every 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 Australia ›

Frequently asked questions

How long did the Cook fire last?
GWIS (Copernicus) dates it between 4 September 2020 and 13 September 2020: 10 days between the first and last heat detection of the perimeter.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 5,978 hectares (59.8 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Cook (6,066 ha, 0.1 %).
What was the weather like?
During the fire the temperature reached 25.4 °C, humidity dropped to 50 % and gusts hit 68 km/h. The fire danger index (FWI) reached 23, class High.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Australia (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: 000 · 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 000.

How we know this
  • Perimeter: GWIS (Copernicus), rebuilt from heat detections rather than mapped on imagery.
  • Dates from the perimeter: the VIIRS detections inside it did not change them. 184 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.
  • Built-up area and population come from the JRC Global Human Settlement Layer (epoch 2020, 100 m cells), summed inside the perimeter: an estimate of what was there, not a damage count.

How we build fire pages: methodology ›

Where this data comes from

The perimeter comes from the Copernicus Global Wildfire Information System (GWIS), which rebuilds it from MODIS and VIIRS heat detections and publishes it under CC BY 4.0. It is not measured on imagery as in Europe, so it is an estimate. 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 from each country’s official figure.