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GH · Ghana · –

Sene West fire, 25 December 2022 Sene West

Out · last detection 9 Jan 2023, 13:39 UTC

The fire started on 25 December 2022 in Sene West, Ghana, and satellites saw it burning for 18 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 2,996 hectares from heat detections, spread across a single municipality.

It is the 69th largest in Bono East since 2016 (of 153 with a page). Number 42 in Ghana in 2022, of 118.

Burnt area
2,996ha
GWIS perimeter (Copernicus)
Duration
18days
25 Dec 2022 – 11 Jan 2023
Municipalities hit
1
districts
Started on
25 Dec
2022
Heat detections
97
in a single hotspot: 62 MW
Danger at start
33
High · FWI index
Average daily power
93MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 25 Dec11 Jan
9 Jan 2023

How it evolved, day by day

25 Dec 2022 · 44 MW · 4 26 Dec 2022 · 166 MW · 15 27 Dec 2022 · 1 MW · 1 29 Dec 2022 · 8 MW · 2 30 Dec 2022 · 29 MW · 4 31 Dec 2022 · 475 MW · 28 1 Jan 2023 · 87 MW · 12 2 Jan 2023 · 77 MW · 6 3 Jan 2023 · 137 MW · 15 4 Jan 2023 · 7 MW · 3 8 Jan 2023 · 25 MW · 3 9 Jan 2023 · 59 MW · 4
25 Dec 31 Dec 4 Jan

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

The weather it burned in

36°high
30km/h · peak gust
20%lowest humidity

It had gone 21 days without rain (1 mm or more) when it started.

This area had burned before

36% of the perimeter overlaps earlier fires recorded since 2016: 201 ha in 2018, 891 ha in 2020.

How big is it?

10 km
It burned the equivalent of 1.9% of the area of London (30 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. Sene West where it started
    3,015 ha reached on 25 Dec
    0.9 %

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 area0.33 ha
Residents≈ 30

Inside the perimeter there were about 0.33 hectares of built-up land and about 30 residents (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)

Day High Min. humidity Peak gust Rain Danger (FWI)
25 Dec 33.2 °C 27 % 25 km/h 0.0 mm High 33
26 Dec 33.9 °C 29 % 18 km/h 0.0 mm High 33
27 Dec 34.3 °C 30 % 29 km/h 0.0 mm High 34
28 Dec 34.5 °C 29 % 28 km/h 0.0 mm High 35
29 Dec 35.0 °C 32 % 23 km/h 0.0 mm High 33
30 Dec 34.8 °C 25 % 30 km/h 0.0 mm High 37
31 Dec 33.7 °C 20 % 27 km/h 0.0 mm Very high 38
1 Jan 34.2 °C 22 % 23 km/h 0.0 mm Very high 38
2 Jan 33.7 °C 22 % 21 km/h 0.0 mm Very high 38
3 Jan 33.4 °C 22 % 23 km/h 0.0 mm High 38
4 Jan 33.6 °C 26 % 23 km/h 0.0 mm High 37
5 Jan 34.5 °C 28 % 24 km/h 0.0 mm High 35
6 Jan 35.1 °C 32 % 23 km/h 0.0 mm High 35
7 Jan 35.2 °C 35 % 25 km/h 0.0 mm High 33
8 Jan 36.3 °C 26 % 28 km/h 0.0 mm High 35
9 Jan 36.4 °C 27 % 29 km/h 0.0 mm High 36
10 Jan 34.7 °C 24 % 26 km/h 0.0 mm High 34
11 Jan 34.3 °C 26 % 23 km/h 0.0 mm High 34
12 Jan after 35.6 °C 29 % 21 km/h 0.0 mm High 37
13 Jan after 34.8 °C 27 % 24 km/h 0.0 mm High 35
14 Jan after 34.1 °C 25 % 23 km/h 0.0 mm High 35
15 Jan after 34.6 °C 34 % 20 km/h 0.0 mm High 34
16 Jan after 34.3 °C 28 % 28 km/h 0.0 mm High 35
17 Jan after 35.3 °C 28 % 28 km/h 0.0 mm High 34
18 Jan after 35.8 °C 21 % 24 km/h 0.0 mm High 36
19 Jan after 35.7 °C 35 % 20 km/h 0.0 mm High 35
20 Jan after 35.4 °C 31 % 19 km/h 0.0 mm High 34
21 Jan after 36.3 °C 35 % 23 km/h 0.0 mm High 35

Its twins: fires that started in the same weather

It started with an FWI of 32.7, a minimum humidity of 27% and 21 days without rain. Fires in the area that started in weather like this since 2016: 21.

FWI at the start 32.7
Minimum humidity 27 %
Days without rain 21
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

Sekyere Afram Plains North fire, January 2017
6,446 ha 15 days FWI 35.3 Min. humidity 27 % 33 km away, in 2017

First rain (1 mm or more) after it ended: 7.4 mm on 22 Jan.

What happened to them

7 days
median duration
2,335 ha
median area
100 %
went past 1,000 ha
5.1 mm
rain at the end (median; 4 of 21 had it)

It burned an area similar to its twins (2,996 ha against a median of 2,335 ha) and lasted 18 days, against 7 days.

In 17 of 21, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 5.1 mm.

This is a bank of analogues: it shows what usually happens, not what will happen. With fewer than 15 twins we give no figures. How we calculate it

How it ended

—first rain
—no rain in ten days
30km/h · max. gust

It was considered over on 11 Jan, and not even 1 mm fell in the following ten days: it went out without rain. Twins with rain when they ended: 4 of 21, with a median of 5.1 mm.

Weather on this page: Open-Meteo.com (CC BY 4.0) · Copernicus Climate Change Service (ERA5)

How a twin is chosen

  • Same area: fires that have already ended, less than 250 km from this one, since 2016.
  • Same start: we compare the FWI on the first day, the minimum humidity that day and the run of days without rain before it. The slider sets how much they may differ.
  • Only pages with final weather data (ERA5 reanalysis) calculated in the same way as this fire’s; agricultural and grass burns and pages with data under review are left out.
  • Fires burning at the same time as this one (a week before or after) are left out: they share the same spell of weather and do not count as a precedent.
  • They are sorted by similarity, and the outlines of the first five are drawn.

How we calculate it

Before and after, from space

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

Before · 18 Dec 2022
After · 18 Jan 2023

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 29 December 2022 the air beside the fire reached 289 µg/m³ of PM2.5. That day averaged 165: 11 times the WHO daily guideline (15).

PM2.5 peak289 µg/m³
Days over the guideline11 days
PM10412 µg/m³
Optical depth1.92
28 Dec31 Dec3 Jan6 Jan
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 · 97Every 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 Ghana

Frequently asked questions

How long did the Sene West fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 25 December 2022 to 11 January 2023 (18 days). The perimeter dates it from 30 December 2022 to 4 January 2023.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 2,996 hectares (30.0 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Sene West (3,015 ha, 0.9 %).
What was the weather like?
During the fire the temperature reached 36.4 °C, humidity dropped to 20 % and gusts hit 30 km/h. The fire danger index (FWI) reached 38, class Very high.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Ghana (geoBoundaries). It is not an official report.
How did the fires that started in similar weather in this area end?
Fires less than 250 km away that started since 2016 with a similar FWI, humidity and dry spell: 21. Their median duration was 7 days and their median area 2,335 ha; 100 % went past 1,000 ha. In 17 of 21, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 5.1 mm.

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 · Emergency number and official warnings

Satellite cross-check

History of this page · 2 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
  1. Last day with fire: 4 January 2023 → 11 January 2023.
  2. Start date: 30 December 2022 → 25 December 2022.

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 112.

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 30 December 2022 to 4 January 2023. 97 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.

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.