Mlele fire, 27 July 2017 Mlele
The fire started on 27 July 2017 in Mlele, Tanzania, and satellites saw it burning for 4 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 8,914 hectares from heat detections, spread across a single municipality.
It is the 43th largest in Katavi since 2016 (of 271 with a page). Number 17 in Tanzania in 2017, of 104.
Compare with…
Suggestions: Mlele · 2016Mlele · 2016Mlele · 2024Mlele · 2017
- Burnt area
- 8,914ha
- GWIS perimeter (Copernicus)
- Duration
- 4days
- 27 Jul 2017 – 30 Jul 2017
- Municipalities hit
- 1
- districts
- Started on
- 27 Jul
- 2017
- Heat detections
- 237
- in a single hotspot: 62 MW
- Danger at start
- 40
- Very high · FWI index
- Average daily power
- 416MW
- detected power per day, on average
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 more than two months without rain (1 mm or more) when it started.
This area had burned before
32% of the perimeter overlaps earlier fires recorded since 2016: 2,999 ha in 2016. Part of it burned more than once, so the yearly figures add up to more than the 2,808 ha that had burned before.
How big is it?
London boundary: geoBoundaries · Office for National Statistics (Open Government Licence v3.0).
Paris boundary: geoBoundaries · Institut national de l'information géographique et forestière (IGN-F) (Etalab Open License 2.0).
Madrid boundary: geoBoundaries · Open Data ESRI, IGN Central Registry of Cartography Area (CC BY 4.0).
Berlin boundary: geoBoundaries · Federal Agency for Cartography and Geodesy (dl-de/by-2-0).
This compares size, not location: both shapes are at the same scale, north up, centred on each other.
What happened to each town
-
Mlele where it started8,975 ha reached on 22 Jul0.3 %
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) |
|---|---|---|---|---|---|
| 27 Jul | 30.4 °C | 31 % | 36 km/h | 0.0 mm | Very high 40 |
| 28 Jul | 30.0 °C | 31 % | 40 km/h | 0.0 mm | Very high 41 |
| 29 Jul | 29.8 °C | 29 % | 39 km/h | 0.0 mm | Very high 41 |
| 30 Jul | 30.3 °C | 27 % | 43 km/h | 0.0 mm | Very high 42 |
| 31 Jul after | 30.3 °C | 29 % | 42 km/h | 0.0 mm | Very high 42 |
| 1 Aug after | 30.3 °C | 31 % | 41 km/h | 0.0 mm | Very high 40 |
| 2 Aug after | 30.7 °C | 33 % | 39 km/h | 0.0 mm | Very high 39 |
| 3 Aug after | 28.9 °C | 33 % | 40 km/h | 0.0 mm | High 38 |
| 4 Aug after | 29.6 °C | 31 % | 40 km/h | 0.0 mm | Very high 39 |
| 5 Aug after | 31.4 °C | 31 % | 36 km/h | 0.0 mm | High 38 |
| 6 Aug after | 30.5 °C | 31 % | 34 km/h | 0.0 mm | High 36 |
| 7 Aug after | 30.2 °C | 27 % | 41 km/h | 0.0 mm | Very high 40 |
| 8 Aug after | 30.9 °C | 28 % | 36 km/h | 0.0 mm | High 38 |
| 9 Aug after | 29.7 °C | 31 % | 39 km/h | 0.0 mm | Very high 39 |
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 · 237Every 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 Mlele fire last?
- GWIS (Copernicus) dates it between 27 July 2017 and 30 July 2017: 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 8,914 hectares (89.1 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Mlele (8,975 ha, 0.3 %).
- What was the weather like?
- During the fire the temperature reached 30.4 °C, humidity dropped to 27 % and gusts hit 43 km/h. The fire danger index (FWI) reached 42, 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
How we know this
- Perimeter: GWIS (Copernicus), rebuilt from heat detections rather than mapped on imagery.
- Dates from the perimeter: the VIIRS detections inside it did not change them. 237 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.
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.