How long did the Nannup fire last?

GWIS (Copernicus) dates it between 16 January 2024 and 19 January 2024: 4 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 6,520 hectares (65.2 km²). It is an estimate: official national figures may differ.

Which municipalities burned?

The fire only entered Nannup (6,526 ha, 2.1 %).

What was the weather like?

During the fire the temperature reached 33.5 °C, humidity dropped to 38 % and gusts hit 61 km/h. The fire danger index (FWI) reached 35, 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.

AU · Australia · 2024-01-16 → 2024-01-19

Nannup fire, January 2024 Nannup

Out · last detection 19 Jan 2024, 17:28 UTC

The fire started on 16 January 2024 in Nannup, Australia, and satellites saw it burning for 4 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 6,520 hectares from heat detections, spread across a single municipality.

It is the 1896th largest in Western Australia since 2016 (of 2718 with a page). Number 455 in Australia in 2024, of 638.

Burnt area: 6,520ha; GWIS perimeter (Copernicus)
Duration: 4days; 16 Jan 2024 – 19 Jan 2024
Municipalities hit: 1; local government areas
Started on: 16 Jan; 2024
Heat detections: 299; in a single hotspot: 629 MW
Danger at start: 35; High · FWI index
Energy released: 13.7GW; sum of detected power

Play back 19 Jan 2024

HOTSPOTS BY DAY 16 Jan19 Jan

How it evolved, day by day

16171819

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

The weather it burned in

34°high

61km/h · peak gust

38%lowest humidity

It had gone one day without rain (1 mm or more) when it started.

This area had burned before

96% of the perimeter overlaps earlier fires recorded since 2016: 4,745 ha in 2017, 1,137 ha in 2021, 971 ha in 2022, 543 ha in 2023. Part of it burned more than once, so the yearly figures add up to more than the 6,250 ha that had burned before.

What happened to each town

Nannup where it started

6,526 ha reached on 16 Jan

2.1 %

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)
16 Jan	32.7 °C	43 %	61 km/h	0.0 mm	High 35
17 Jan	33.5 °C	40 %	54 km/h	0.0 mm	High 32
18 Jan	26.0 °C	50 %	42 km/h	0.0 mm	High 23
19 Jan	26.0 °C	51 %	38 km/h	0.0 mm	Moderate 21
20 Jan after	30.5 °C	38 %	35 km/h	0.0 mm	High 22
21 Jan after	27.9 °C	48 %	42 km/h	0.0 mm	High 24
22 Jan after	25.9 °C	42 %	37 km/h	0.0 mm	High 23
23 Jan after	26.7 °C	38 %	38 km/h	0.0 mm	High 24
24 Jan after	24.6 °C	45 %	44 km/h	0.0 mm	High 24
25 Jan after	23.1 °C	43 %	52 km/h	0.0 mm	High 28
26 Jan after	26.0 °C	32 %	44 km/h	0.0 mm	High 28
27 Jan after	31.0 °C	24 %	35 km/h	0.0 mm	High 30
28 Jan after	24.2 °C	41 %	49 km/h	0.3 mm	High 30
29 Jan after	25.5 °C	33 %	46 km/h	0.0 mm	High 30
30 Jan after	32.8 °C	20 %	42 km/h	0.0 mm	Very high 40
31 Jan after	36.1 °C	25 %	39 km/h	0.0 mm	Very high 38
1 Feb after	39.9 °C	17 %	38 km/h	0.0 mm	Very high 42
2 Feb after	33.0 °C	27 %	41 km/h	0.0 mm	Very high 40
3 Feb after	22.4 °C	53 %	51 km/h	0.4 mm	High 28
4 Feb after	21.0 °C	42 %	44 km/h	0.0 mm	High 26

Before and after, from space

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

↔

Before · 9 Jan 2024

After · 26 Jan 2024

Before After

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 January 2024 the air beside the fire reached 101 µg/m³ of PM2.5. That day averaged 37: 2.5 times the WHO daily guideline (15).

PM2.5 peak101 µg/m³

Days over the guideline4 days

PM10145 µg/m³

Optical depth1.64

WHO 15

141516171819202122

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 · 299Every 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 time	Satellite	FRP (MW)	Lat	Lon

Other fires nearby

All fires in Australia ›

Frequently asked questions

How long did the Nannup fire last?: GWIS (Copernicus) dates it between 16 January 2024 and 19 January 2024: 4 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 6,520 hectares (65.2 km²). It is an estimate: official national figures may differ.
Which municipalities burned?: The fire only entered Nannup (6,526 ha, 2.1 %).
What was the weather like?: During the fire the temperature reached 33.5 °C, humidity dropped to 38 % and gusts hit 61 km/h. The fire danger index (FWI) reached 35, 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

Satellite cross-check

NASA FIRMS ↗
GWIS · Copernicus ↗

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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What really happened?

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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.

Where it burned