Mecula fire, 19 August 2021 Mecula
The fire started on 19 August 2021 in Mecula, Mozambique, and satellites saw it burning for 12 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 4,838 hectares from heat detections, spread across a single municipality.
It is the 228th largest in Niassa since 2016 (of 577 with a page). Number 86 in Mozambique in 2021, of 233.
- Burnt area
- 4,838ha
- GWIS perimeter (Copernicus)
- Duration
- 12days
- 19 Aug 2021 – 30 Aug 2021
- Municipalities hit
- 1
- districts
- Started on
- 19 Aug
- 2021
- Heat detections
- 119
- in a single hotspot: 77 MW
- Danger at start
- 32
- High · FWI index
- Energy released
- 1.3GW
- sum of detected power
Where it burned
How it evolved, day by day
Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.
The weather it burned in
It had gone 18 days without rain (1 mm or more) when it started.
This area had burned before
72% of the perimeter overlaps earlier fires recorded since 2016: 1,383 ha in 2017, 827 ha in 2018, 2,140 ha in 2019, 1,446 ha in 2020. Part of it burned more than once, so the yearly figures add up to more than the 3,486 ha that had burned before.
What happened to each town
-
Mecula where it started4,857 ha reached on 19 Aug0.3 %
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) |
|---|---|---|---|---|---|
| 19 Aug | 30.5 °C | 31 % | 24 km/h | 0.0 mm | High 32 |
| 20 Aug | 31.8 °C | 32 % | 39 km/h | 0.0 mm | High 36 |
| 21 Aug | 30.6 °C | 52 % | 28 km/h | 0.0 mm | High 25 |
| 22 Aug | 31.4 °C | 40 % | 34 km/h | 0.0 mm | High 30 |
| 23 Aug | 32.2 °C | 32 % | 32 km/h | 0.0 mm | High 34 |
| 24 Aug | 31.6 °C | 32 % | 38 km/h | 0.0 mm | High 36 |
| 25 Aug | 30.7 °C | 29 % | 30 km/h | 0.0 mm | High 34 |
| 26 Aug | 30.9 °C | 31 % | 30 km/h | 0.0 mm | High 32 |
| 27 Aug | 31.7 °C | 33 % | 27 km/h | 0.0 mm | High 34 |
| 28 Aug | 32.1 °C | 31 % | 28 km/h | 0.0 mm | High 35 |
| 29 Aug | 32.5 °C | 27 % | 34 km/h | 0.0 mm | High 38 |
| 30 Aug | 31.8 °C | 29 % | 37 km/h | 0.0 mm | Very high 39 |
| 31 Aug after | 32.7 °C | 29 % | 34 km/h | 0.0 mm | Very high 40 |
| 1 Sept after | 31.1 °C | 37 % | 28 km/h | 0.0 mm | High 36 |
| 2 Sept after | 31.2 °C | 31 % | 32 km/h | 0.0 mm | High 35 |
| 3 Sept after | 31.1 °C | 28 % | 35 km/h | 0.1 mm | High 37 |
| 4 Sept after | 31.7 °C | 21 % | 32 km/h | 0.0 mm | Very high 42 |
| 5 Sept after | 31.1 °C | 30 % | 32 km/h | 0.0 mm | Very high 42 |
| 6 Sept after | 31.4 °C | 30 % | 37 km/h | 0.0 mm | Very high 45 |
| 7 Sept after | 30.7 °C | 32 % | 35 km/h | 0.0 mm | Very high 40 |
| 8 Sept after | 31.6 °C | 29 % | 36 km/h | 0.0 mm | Very high 42 |
| 9 Sept after | 31.6 °C | 32 % | 33 km/h | 0.3 mm | Very high 40 |
Before and after, from space
Drag the line to compare the same ground before the fire and after it.
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 · 119Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
Frequently asked questions
- How long did the Mecula fire last?
- GWIS (Copernicus) dates it between 19 August 2021 and 30 August 2021: 12 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 4,838 hectares (48.4 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Mecula (4,857 ha, 0.3 %).
- What was the weather like?
- During the fire the temperature reached 32.5 °C, humidity dropped to 27 % and gusts hit 39 km/h. The fire danger index (FWI) reached 39, 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.
Report an error
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.