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Bulen fire, 16 January 2018 Bulen

Out · last detection 20 Jan 2018, 10:48 UTC

The fire started on 16 January 2018 in Bulen, Ethiopia, and satellites saw it burning for 4 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 4,123 hectares from heat detections, spread across a single municipality.

It is the 174th largest in Beneshangul Gumu since 2016 (of 699 with a page). Number 20 in Ethiopia in 2018, of 96.

Burnt area
4,123ha
GWIS perimeter (Copernicus)
Duration
4days
16 Jan 2018 – 19 Jan 2018
Municipalities hit
1
districts
Started on
16 Jan
2018
Heat detections
139
in a single hotspot: 52 MW
Danger at start
45
Very high · FWI index
Energy released
1.6GW
sum of detected power

Where it burned

20 Jan 2018
HOTSPOTS BY DAY 16 Jan19 Jan

How it evolved, day by day

1617181920

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

The weather it burned in

33°high
35km/h · peak gust
14%lowest humidity

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

This area had burned before

79% of the perimeter overlaps earlier fires recorded since 2016: 2,137 ha in 2016, 2,941 ha in 2017. Part of it burned more than once, so the yearly figures add up to more than the 3,267 ha that had burned before.

What happened to each town

  1. Bulen where it started
    4,153 ha reached on 16 Jan
    1.4 %

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 33.4 °C 14 % 31 km/h 0.0 mm Very high 45
17 Jan 33.3 °C 16 % 31 km/h 0.0 mm Very high 46
18 Jan 33.0 °C 15 % 35 km/h 0.0 mm Very high 48
19 Jan 32.6 °C 17 % 35 km/h 0.0 mm Very high 48
20 Jan after 33.5 °C 17 % 29 km/h 0.0 mm Very high 45
21 Jan after 33.7 °C 18 % 29 km/h 0.0 mm Very high 42
22 Jan after 33.0 °C 19 % 31 km/h 0.0 mm Very high 45
23 Jan after 33.6 °C 20 % 29 km/h 0.0 mm Very high 43
24 Jan after 34.5 °C 18 % 34 km/h 0.0 mm Very high 46
25 Jan after 32.5 °C 27 % 29 km/h 0.0 mm Very high 39
26 Jan after 34.1 °C 21 % 32 km/h 0.0 mm Very high 40
27 Jan after 33.8 °C 24 % 36 km/h 0.0 mm Very high 40
28 Jan after 33.6 °C 25 % 32 km/h 0.0 mm Very high 40
29 Jan after 33.8 °C 22 % 38 km/h 0.0 mm Very high 42

Before and after, from space

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

Before · 9 Jan 2018
After · 26 Jan 2018

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 · 139Every 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 Ethiopia ›

Frequently asked questions

How long did the Bulen fire last?
GWIS (Copernicus) dates it between 16 January 2018 and 19 January 2018: 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 4,123 hectares (41.2 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Bulen (4,153 ha, 1.4 %).
What was the weather like?
During the fire the temperature reached 33.4 °C, humidity dropped to 14 % and gusts hit 35 km/h. The fire danger index (FWI) reached 48, class Very high.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Ethiopia (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.

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.

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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 ADM3 (Open Data Commons Open Database License 1.0). 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.