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AU · Australia · –

Roper Gulf fire, 10 October 2019 Roper Gulf

Out · last detection 23 Oct 2019, 16:25 UTC

The fire started on 10 October 2019 in Roper Gulf, Australia, and satellites saw it burning for 14 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 19,549 hectares from heat detections, spread across a single municipality.

This entry is probably a savanna fire in Australia’s tropical north, not a bushfire like those in the south of the country. Millions of hectares of northern savanna and grassland burn every year: much of it in burns lit on purpose early in the dry season (traditional fire management, parks and cattle stations), the rest in grass fires that return to the same ground every few years. This is our assumption, based on the location; it is not confirmed. That is why it is left out of the wildfire rankings.

Burnt area
19,549ha
GWIS perimeter (Copernicus)
Duration
14days
10 Oct 2019 – 23 Oct 2019
Municipalities hit
1
local government areas
Started on
10 Oct
2019
Heat detections
714
in a single hotspot: 102 MW
Danger at start
75
Very extreme · FWI index
Average daily power
685MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 10 Oct23 Oct
23 Oct 2019

How it evolved, day by day

10 Oct 2019 · 169 MW · 8 11 Oct 2019 · 8 MW · 3 12 Oct 2019 · 480 MW · 82 13 Oct 2019 · 4,098 MW · 154 14 Oct 2019 · 534 MW · 94 15 Oct 2019 · 535 MW · 48 16 Oct 2019 · 399 MW · 31 17 Oct 2019 · 281 MW · 40 18 Oct 2019 · 298 MW · 38 19 Oct 2019 · 585 MW · 40 20 Oct 2019 · 134 MW · 30 21 Oct 2019 · 1,391 MW · 84 22 Oct 2019 · 600 MW · 47 23 Oct 2019 · 78 MW · 15
10 Oct 13 Oct 16 Oct 19 Oct 22 Oct

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

The weather it burned in

41°high
55km/h · peak gust
3%lowest humidity

It had gone more than two months without rain (1 mm or more) when it started.

This area had burned before

45% of the perimeter overlaps earlier fires recorded since 2016: 8,899 ha in 2017.

How big is it?

10 km
It burned the equivalent of 12% of the area of London (195 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. Roper Gulf where it started
    19,713 ha reached on 10 Oct
    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 area< 0.1 ha
Residents< 20

Inside the perimeter there was no noticeable 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)

Started with Very dry air: 28 % of the area in Australia 60 days without rain: 7.6 % of the area in Australia

Day High Min. humidity Peak gust Rain Danger (FWI)
10 Oct 38.2 °C 6 % 48 km/h 0.0 mm Very extreme 75
11 Oct 37.2 °C 3 % 43 km/h 0.0 mm Very extreme 71
12 Oct 38.1 °C 8 % 32 km/h 0.0 mm Extreme 61
13 Oct 39.7 °C 6 % 41 km/h 0.0 mm Very extreme 71
14 Oct 39.7 °C 8 % 35 km/h 0.0 mm Extreme 66
15 Oct 39.5 °C 11 % 37 km/h 0.0 mm Extreme 69
16 Oct 40.3 °C 8 % 42 km/h 0.0 mm Very extreme 71
17 Oct 40.6 °C 9 % 40 km/h 0.0 mm Very extreme 72
18 Oct 40.5 °C 12 % 33 km/h 0.0 mm Extreme 63
19 Oct 40.6 °C 11 % 42 km/h 0.0 mm Extreme 69
20 Oct 40.3 °C 5 % 55 km/h 0.0 mm Very extreme 84
21 Oct 38.9 °C 4 % 55 km/h 0.0 mm Very extreme 84
22 Oct 37.3 °C 13 % 46 km/h 0.0 mm Very extreme 72
23 Oct 35.6 °C 23 % 44 km/h 0.2 mm Extreme 58
24 Oct after 37.7 °C 18 % 36 km/h 0.0 mm Extreme 54
25 Oct after 38.3 °C 17 % 34 km/h 0.0 mm Extreme 52
26 Oct after 38.3 °C 18 % 40 km/h 0.0 mm Extreme 53
27 Oct after 33.8 °C 35 % 31 km/h 0.2 mm Very high 47
28 Oct after 33.0 °C 21 % 45 km/h 0.2 mm Extreme 51
29 Oct after 35.0 °C 21 % 39 km/h 0.0 mm Very high 49
30 Oct after 37.5 °C 12 % 31 km/h 0.0 mm Extreme 54
31 Oct after 36.8 °C 17 % 28 km/h 0.0 mm Extreme 52
1 Nov after 37.8 °C 20 % 34 km/h 0.0 mm Extreme 58
2 Nov after 37.4 °C 24 % 36 km/h 0.0 mm Extreme 54

Before and after, from space

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

Before · 3 Oct 2019
After · 30 Oct 2019

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 · 714Every 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 Roper Gulf fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 10 October 2019 to 23 October 2019 (14 days). The perimeter dates it from 11 October 2019 to 23 October 2019.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 19,549 hectares (195.5 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Roper Gulf (19,713 ha, 0.1 %).
What was the weather like?
During the fire the temperature reached 40.6 °C, humidity dropped to 3 % and gusts hit 55 km/h. The fire danger index (FWI) reached 84, class Very extreme.
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 · 1 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
  1. Start date: 11 October 2019 → 10 October 2019.

RSS Changes to this page With cross-checks and a citable version

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 adjusted with the VIIRS detections inside the perimeter, which said 11 October 2019 to 23 October 2019. 714 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.
  • Probably a vegetation burn: not counted in the totals.

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.