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Ose fire, 14 February 2017 Idanre, Owo, Ose

Out · last detection 23 Feb 2017, 12:35 UTC

The fire started on 14 February 2017 in Ose, Nigeria, and satellites saw it burning for 9 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 12,653 hectares from heat detections, spread across 3 municipalities.

It is the 4th largest in Ondo since 2016 (of 23 with a page). Number 8 in Nigeria in 2017, of 143.

Burnt area
12,653ha
GWIS perimeter (Copernicus)
Duration
9days
14 Feb 2017 – 22 Feb 2017
Municipalities hit
3
local government areas
Started on
14 Feb
2017
Heat detections
641
in a single hotspot: 64 MW
Danger at start
38
High · FWI index
Energy released
4.2GW
sum of detected power

Where it burned

23 Feb 2017
HOTSPOTS BY DAY 14 Feb22 Feb

How it evolved, day by day

14151617181920212223

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
31km/h · peak gust
12%lowest humidity

It had gone 12 days without rain (1 mm or more) when it started. Rain came after the fire: 10.2 mm on 26 Feb.

This area had burned before

74% of the perimeter overlaps earlier fires recorded since 2016: 9,412 ha in 2016.

What happened to each town

  1. Idanre
    6,315 ha reached on 13 Feb
    3.2 %
  2. Owo
    3,853 ha reached on 13 Feb
    3.7 %
  3. Ose where it started
    2,566 ha reached on 7 Feb
    1.7 %

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)
14 Feb 38.3 °C 18 % 26 km/h 0.0 mm High 38
15 Feb 36.9 °C 23 % 25 km/h 0.0 mm High 36
16 Feb 35.8 °C 22 % 24 km/h 0.0 mm High 34
17 Feb 36.3 °C 14 % 28 km/h 0.0 mm Very high 38
18 Feb 35.1 °C 12 % 31 km/h 0.0 mm Very high 39
19 Feb 35.9 °C 18 % 28 km/h 0.0 mm Very high 41
20 Feb 36.4 °C 23 % 28 km/h 0.0 mm Very high 42
21 Feb 37.8 °C 25 % 21 km/h 0.0 mm Very high 39
22 Feb 36.7 °C 28 % 31 km/h 0.0 mm Very high 39
23 Feb after 37.6 °C 25 % 35 km/h 0.0 mm Very high 42
24 Feb after 39.7 °C 23 % 42 km/h 0.0 mm Very high 43
25 Feb after 38.7 °C 26 % 38 km/h 0.0 mm Very high 42
26 Feb after 33.1 °C 60 % 32 km/h 10.2 mm Very low 3

Before and after, from space

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

Before · 7 Feb 2017
After · 1 Mar 2017

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 · 641Every 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 Ose fire last?
GWIS (Copernicus) dates it between 14 February 2017 and 22 February 2017: 9 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 12,653 hectares (126.5 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 3 municipalities: Idanre (6,315 ha, 3.2 %); Owo (3,853 ha, 3.7 %); Ose (2,566 ha, 1.7 %).
What was the weather like?
During the fire the temperature reached 38.3 °C, humidity dropped to 12 % and gusts hit 31 km/h. The fire danger index (FWI) reached 42, class Very 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
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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 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.