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Idanre fire, December 2024 Idanre, Ovia South-West

Out · last detection 24 Dec 2024, 13:32 UTC

The fire started on 17 December 2024 in Idanre, Nigeria, and satellites saw it burning for 7 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 5,520 hectares from heat detections, spread across 2 municipalities.

It is the 9th largest in Ondo since 2016 (of 23 with a page). Number 12 in Nigeria in 2024, of 118.

Burnt area
5,520ha
GWIS perimeter (Copernicus)
Duration
7days
17 Dec 2024 – 23 Dec 2024
Municipalities hit
2
local government areas
Started on
17 Dec
2024
Heat detections
227
in a single hotspot: 71 MW
Danger at start
29
High · FWI index
Energy released
2.0GW
sum of detected power

Where it burned

24 Dec 2024
HOTSPOTS BY DAY 17 Dec23 Dec

How it evolved, day by day

1718192021222324

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

The weather it burned in

35°high
32km/h · peak gust
19%lowest humidity

It had gone 32 days without rain (1 mm or more) when it started.

This area had burned before

100% of the perimeter overlaps earlier fires recorded since 2016: 6,346 ha in 2016, 1,844 ha in 2018, 1,881 ha in 2019, 6,215 ha in 2020, 387 ha in 2021, 6,918 ha in 2022, 2,886 ha in 2023. Part of it burned more than once, so the yearly figures add up to more than the 5,556 ha that had burned before.

What happened to each town

  1. Idanre where it started
    5,478 ha reached on 15 Dec
    2.8 %
  2. 78 ha
    0.0 %

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)
17 Dec 35.0 °C 27 % 17 km/h 0.0 mm High 29
18 Dec 35.3 °C 22 % 25 km/h 0.0 mm High 31
19 Dec 34.1 °C 19 % 32 km/h 0.0 mm High 35
20 Dec 34.6 °C 21 % 31 km/h 0.0 mm High 36
21 Dec 34.4 °C 22 % 30 km/h 0.0 mm High 36
22 Dec 34.5 °C 24 % 26 km/h 0.0 mm High 34
23 Dec 34.8 °C 25 % 23 km/h 0.0 mm High 35
24 Dec after 35.1 °C 30 % 24 km/h 0.0 mm High 34
25 Dec after 35.6 °C 29 % 18 km/h 0.0 mm High 34
26 Dec after 35.4 °C 25 % 17 km/h 0.0 mm High 33
27 Dec after 36.5 °C 25 % 24 km/h 0.0 mm High 34
28 Dec after 34.4 °C 33 % 19 km/h 0.0 mm High 32
29 Dec after 36.1 °C 25 % 29 km/h 0.0 mm High 32
30 Dec after 35.5 °C 25 % 31 km/h 0.0 mm High 33
31 Dec after 36.0 °C 28 % 25 km/h 0.0 mm High 34
1 Jan after 35.4 °C 34 % 22 km/h 0.0 mm High 33
2 Jan after 35.9 °C 33 % 24 km/h 0.0 mm High 34

Before and after, from space

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

Before · 10 Dec 2024
After · 30 Dec 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 21 December 2024 the air beside the fire reached 208 µg/m³ of PM2.5. That day averaged 128: 8.6 times the WHO daily guideline (15).

PM2.5 peak208 µg/m³
Days over the guideline12 days
PM10454 µg/m³
Optical depth1.05
151617181920212223242526
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 · 227Every 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 Nigeria ›

Frequently asked questions

How long did the Idanre fire last?
GWIS (Copernicus) dates it between 17 December 2024 and 23 December 2024: 7 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 5,520 hectares (55.2 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Idanre (5,478 ha, 2.8 %); Ovia South-West (78 ha, 0.0 %).
What was the weather like?
During the fire the temperature reached 35.3 °C, humidity dropped to 19 % and gusts hit 32 km/h. The fire danger index (FWI) reached 36, class High.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Nigeria (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

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
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.

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.