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Mlele fire, 17 September 2018 Mlele

Out · last detection 21 Sept 2018, 23:53 UTC

The fire started on 17 September 2018 in Mlele, Tanzania, and satellites saw it burning for 5 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 3,363 hectares from heat detections, spread across a single municipality.

It is the 214th largest in Katavi since 2016 (of 271 with a page). Number 53 in Tanzania in 2018, of 72.

Burnt area
3,363ha
GWIS perimeter (Copernicus)
Duration
5days
17 Sept 2018 – 21 Sept 2018
Municipalities hit
1
districts
Started on
17 Sept
2018
Heat detections
102
in a single hotspot: 30 MW
Danger at start
36
High · FWI index
Energy released
479MW
sum of detected power

Where it burned

21 Sept 2018
HOTSPOTS BY DAY 17 Sept21 Sept

How it evolved, day by day

1718192021

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
45km/h · peak gust
22%lowest humidity

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

This area had burned before

85% of the perimeter overlaps earlier fires recorded since 2016: 2,782 ha in 2016, 834 ha in 2017. Part of it burned more than once, so the yearly figures add up to more than the 2,857 ha that had burned before.

What happened to each town

  1. Mlele where it started
    3,388 ha reached on 17 Sept
    0.1 %

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)
17 Sept 31.5 °C 33 % 32 km/h 0.0 mm High 36
18 Sept 33.0 °C 27 % 41 km/h 0.0 mm Very high 38
19 Sept 32.6 °C 23 % 41 km/h 0.0 mm Very high 39
20 Sept 32.7 °C 22 % 41 km/h 0.0 mm Very high 40
21 Sept 32.2 °C 31 % 45 km/h 0.0 mm Very high 40
22 Sept after 32.1 °C 29 % 42 km/h 0.0 mm Very high 40
23 Sept after 32.3 °C 27 % 42 km/h 0.0 mm Very high 41
24 Sept after 32.1 °C 28 % 43 km/h 0.0 mm Very high 42
25 Sept after 32.7 °C 25 % 42 km/h 0.0 mm Very high 41
26 Sept after 33.3 °C 26 % 42 km/h 0.0 mm Very high 41
27 Sept after 33.0 °C 28 % 43 km/h 0.0 mm Very high 41
28 Sept after 32.3 °C 28 % 46 km/h 0.0 mm Very high 42
29 Sept after 33.2 °C 24 % 38 km/h 0.0 mm Very high 40
30 Sept after 32.8 °C 23 % 49 km/h 0.0 mm Very high 44
1 Oct after 31.8 °C 23 % 47 km/h 0.0 mm Very high 45

Before and after, from space

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

Before · 10 Sept 2018
After · 28 Sept 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 · 102Every 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 Tanzania ›

Frequently asked questions

How long did the Mlele fire last?
GWIS (Copernicus) dates it between 17 September 2018 and 21 September 2018: 5 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 3,363 hectares (33.6 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Mlele (3,388 ha, 0.1 %).
What was the weather like?
During the fire the temperature reached 33.0 °C, humidity dropped to 22 % and gusts hit 45 km/h. The fire danger index (FWI) reached 40, class Very high.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Tanzania (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 3.0 Intergovernmental Organisations (CC BY 3.0 IGO)). 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.