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Mareeba fire, 23 September 2022 Mareeba

Out · last detection 27 Sept 2022, 04:14 UTC

The fire started on 23 September 2022 in Mareeba, Australia, and satellites saw it burning for 5 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 16,011 hectares from heat detections, spread across a single municipality.

It is the 415th largest in Queensland since 2016 (of 1737 with a page). Number 94 in Australia in 2022, of 566.

Burnt area
16,011ha
GWIS perimeter (Copernicus)
Duration
5days
23 Sept 2022 – 27 Sept 2022
Municipalities hit
1
local government areas
Started on
23 Sept
2022
Heat detections
557
in a single hotspot: 39 MW
Danger at start
55
Extreme · FWI index
Energy released
3.3GW
sum of detected power

Where it burned

27 Sept 2022
HOTSPOTS BY DAY 23 Sept27 Sept

How it evolved, day by day

2324252627

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

The weather it burned in

38°high
35km/h · peak gust
10%lowest humidity

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

This area had burned before

71% of the perimeter overlaps earlier fires recorded since 2016: 4,853 ha in 2016, 1,613 ha in 2017, 9,145 ha in 2019, 1,781 ha in 2020, 2,385 ha in 2021. Part of it burned more than once, so the yearly figures add up to more than the 11,383 ha that had burned before.

What happened to each town

  1. Mareeba where it started
    16,092 ha reached on 22 Sept
    0.3 %

Burnt area inside each municipality, from crossing the GWIS perimeter with administrative boundaries. The distance is from the town centre to the nearest fire: staying a kilometre away does not mean it reached the houses.

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)
22 Sept 37.9 °C 20 % 28 km/h 0.0 mm Extreme 55
23 Sept 38.5 °C 10 % 28 km/h 0.0 mm Extreme 60
24 Sept 37.9 °C 17 % 35 km/h 0.0 mm Extreme 59
25 Sept 37.7 °C 23 % 35 km/h 0.0 mm Extreme 53
26 Sept 38.2 °C 21 % 29 km/h 0.0 mm Extreme 51
27 Sept 38.2 °C 21 % 34 km/h 0.0 mm Extreme 56
28 Sept after 36.0 °C 20 % 54 km/h 0.0 mm Very extreme 72
29 Sept after 35.7 °C 25 % 36 km/h 0.0 mm Extreme 56
30 Sept after 36.9 °C 19 % 37 km/h 0.0 mm Very high 50
1 Oct after 35.5 °C 25 % 28 km/h 0.0 mm Very high 45
2 Oct after 35.8 °C 28 % 31 km/h 0.0 mm Very high 46
3 Oct after 36.4 °C 27 % 32 km/h 0.1 mm Very high 48
4 Oct after 37.3 °C 26 % 40 km/h 0.0 mm Extreme 53
5 Oct after 36.1 °C 29 % 39 km/h 0.0 mm Very high 48
6 Oct after 38.3 °C 23 % 36 km/h 0.0 mm Very high 48
7 Oct after 38.7 °C 22 % 43 km/h 0.0 mm Extreme 53

Before and after, from space

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

Before · 16 Sept 2022
After · 4 Oct 2022

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 25 September 2022 the air beside the fire reached 69 µg/m³ of PM2.5. That day averaged 24: 1.6 times the WHO daily guideline (15).

PM2.5 peak69 µg/m³
Days over the guideline4 days
PM10113 µg/m³
Optical depth0.73
21222324252627282930
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 · 557Every 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 Mareeba fire last?
GWIS (Copernicus) dates it between 23 September 2022 and 27 September 2022: 5 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 16,011 hectares (160.1 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Mareeba (16,092 ha, 0.3 %).
What was the weather like?
During the fire the temperature reached 38.5 °C, humidity dropped to 10 % and gusts hit 35 km/h. The fire danger index (FWI) reached 60, class 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

Satellite cross-check

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
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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 000.

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.