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Mecula fire, 11 September 2017 Mecula

Out · last detection 18 Sept 2017, 22:14 UTC

The fire started on 11 September 2017 in Mecula, Mozambique, and satellites saw it burning for 8 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 4,291 hectares from heat detections, spread across a single municipality.

It is the 276th largest in Niassa since 2016 (of 567 with a page). Number 89 in Mozambique in 2017, of 196.

Burnt area
4,291ha
GWIS perimeter (Copernicus)
Duration
8days
11 Sept 2017 – 18 Sept 2017
Municipalities hit
1
districts
Started on
11 Sept
2017
Heat detections
130
in a single hotspot: 76 MW
Danger at start
35
High · FWI index
Energy released
1.2GW
sum of detected power

Where it burned

18 Sept 2017
HOTSPOTS BY DAY 11 Sept18 Sept

How it evolved, day by day

11121314161718

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
36km/h · peak gust
19%lowest humidity

It had gone 24 days without rain (1 mm or more) when it started. Rain came after the fire: 1.1 mm on 25 Sept.

This area had burned before

20% of the perimeter overlaps earlier fires recorded since 2016: 867 ha in 2016.

What happened to each town

  1. Mecula where it started
    4,319 ha reached on 11 Sept
    0.2 %

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)
11 Sept 31.1 °C 26 % 29 km/h 0.0 mm High 35
12 Sept 31.4 °C 25 % 35 km/h 0.0 mm High 35
13 Sept 32.2 °C 25 % 34 km/h 0.0 mm High 35
14 Sept 31.9 °C 21 % 30 km/h 0.0 mm High 36
15 Sept 31.2 °C 31 % 26 km/h 0.0 mm High 36
16 Sept 32.2 °C 19 % 27 km/h 0.0 mm High 37
17 Sept 33.0 °C 20 % 29 km/h 0.0 mm Very high 40
18 Sept 32.6 °C 29 % 36 km/h 0.0 mm Very high 39
19 Sept after 30.9 °C 42 % 33 km/h 0.3 mm High 32
20 Sept after 32.3 °C 32 % 36 km/h 0.3 mm High 31
21 Sept after 31.4 °C 31 % 33 km/h 0.0 mm High 32
22 Sept after 32.1 °C 33 % 33 km/h 0.0 mm High 30
23 Sept after 31.4 °C 33 % 29 km/h 0.2 mm High 33
24 Sept after 30.7 °C 37 % 26 km/h 0.0 mm High 32
25 Sept after 30.1 °C 41 % 30 km/h 1.1 mm Moderate 21

Before and after, from space

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

Before · 4 Sept 2017
After · 25 Sept 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 · 130Every 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 Mozambique ›

Frequently asked questions

How long did the Mecula fire last?
GWIS (Copernicus) dates it between 11 September 2017 and 18 September 2017: 8 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 4,291 hectares (42.9 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Mecula (4,319 ha, 0.2 %).
What was the weather like?
During the fire the temperature reached 33.0 °C, humidity dropped to 19 % and gusts hit 36 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 Mozambique (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 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.