Mansa fire, 9 August 2018 Mwense, Mansa
The fire started on 9 August 2018 in Mansa, Zambia, and satellites saw it burning for 8 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 3,774 hectares from heat detections, spread across 2 municipalities.
It is the 379th largest in Luapula since 2016 (of 533 with a page). Number 129 in Zambia in 2018, of 204.
- Burnt area
- 3,774ha
- GWIS perimeter (Copernicus)
- Duration
- 8days
- 9 Aug 2018 – 16 Aug 2018
- Municipalities hit
- 2
- districts
- Started on
- 9 Aug
- 2018
- Heat detections
- 159
- in a single hotspot: 100 MW
- Danger at start
- 51
- Extreme · FWI index
- Average daily power
- 119MW
- 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
86% of the perimeter overlaps earlier fires recorded since 2016: 1,814 ha in 2016, 2,485 ha in 2017. Part of it burned more than once, so the yearly figures add up to more than the 3,260 ha that had burned before.
What happened to each town
-
2,353 ha reached on 10 Aug1.0 %
-
Mansa where it started1,447 ha reached on 8 Aug0.2 %
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) |
|---|---|---|---|---|---|
| 9 Aug | 33.0 °C | 11 % | 34 km/h | 0.0 mm | Extreme 51 |
| 10 Aug | 31.7 °C | 18 % | 35 km/h | 0.0 mm | Extreme 50 |
| 11 Aug | 31.8 °C | 18 % | 29 km/h | 0.0 mm | Very high 46 |
| 12 Aug | 30.0 °C | 19 % | 34 km/h | 0.0 mm | Very high 48 |
| 13 Aug | 30.0 °C | 24 % | 40 km/h | 0.0 mm | Very high 45 |
| 14 Aug | 29.6 °C | 25 % | 40 km/h | 0.0 mm | Very high 44 |
| 15 Aug | 30.1 °C | 21 % | 34 km/h | 0.0 mm | Very high 42 |
| 16 Aug | 30.1 °C | 22 % | 35 km/h | 0.0 mm | Very high 41 |
| 17 Aug after | 30.3 °C | 20 % | 28 km/h | 0.0 mm | Very high 40 |
| 18 Aug after | 31.1 °C | 14 % | 34 km/h | 0.0 mm | Very high 45 |
| 19 Aug after | 29.6 °C | 20 % | 39 km/h | 0.0 mm | Very high 46 |
| 20 Aug after | 29.8 °C | 24 % | 34 km/h | 0.0 mm | Very high 43 |
| 21 Aug after | 29.9 °C | 22 % | 32 km/h | 0.0 mm | Very high 43 |
| 22 Aug after | 32.2 °C | 20 % | 27 km/h | 0.0 mm | Very high 41 |
| 23 Aug after | 32.8 °C | 21 % | 26 km/h | 0.0 mm | Very high 40 |
| 24 Aug after | 30.9 °C | 26 % | 31 km/h | 0.0 mm | Very high 42 |
| 25 Aug after | 30.9 °C | 22 % | 37 km/h | 0.0 mm | Very high 42 |
| 26 Aug after | 31.7 °C | 21 % | 30 km/h | 0.0 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 · 159Every 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 Mansa fire last?
- GWIS (Copernicus) dates it between 9 August 2018 and 16 August 2018: 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 3,774 hectares (37.7 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire entered 2 municipalities: Mwense (2,353 ha, 1.0 %); Mansa (1,447 ha, 0.2 %).
- What was the weather like?
- During the fire the temperature reached 33.0 °C, humidity dropped to 11 % and gusts hit 40 km/h. The fire danger index (FWI) reached 51, class Extreme.
- Where does this data come from?
- From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Zambia (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
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. 159 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 4.0 (CC BY 4.0)). 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.