Calai fire, 14 August 2022 Calai
The fire started on 14 August 2022 in Calai, Angola, and satellites saw it burning for 8 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 11,883 hectares from heat detections, spread across a single municipality.
It is the 135th largest in Cuando Cubango since 2016 (of 658 with a page). Number 18 in Angola in 2022, of 143.
- Burnt area
- 11,883ha
- GWIS perimeter (Copernicus)
- Duration
- 8days
- 14 Aug 2022 – 21 Aug 2022
- Municipalities hit
- 1
- municipalities
- Started on
- 14 Aug
- 2022
- Heat detections
- 337
- in a single hotspot: 112 MW
- Danger at start
- 46
- Very high · FWI index
- Energy released
- 4.8GW
- 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 more than two months without rain (1 mm or more) when it started.
This area had burned before
82% of the perimeter overlaps earlier fires recorded since 2016: 4,028 ha in 2016, 3,004 ha in 2017, 4,295 ha in 2018, 1,369 ha in 2019, 1,911 ha in 2020, 161 ha in 2021. Part of it burned more than once, so the yearly figures add up to more than the 9,748 ha that had burned before.
- 2,754 ha Calai fire, September 2018 17,391 ha in total; the hectares shown are those it shares with this fire
- 2,719 ha Calai fire, September 2017 6,525 ha in total; the hectares shown are those it shares with this fire
- 1,214 ha Calai fire, September 2020 23,514 ha in total; the hectares shown are those it shares with this fire
What happened to each town
-
Calai where it started11,956 ha reached on 13 Aug1.5 %
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) |
|---|---|---|---|---|---|
| 13 Aug | 30.2 °C | 13 % | 27 km/h | 0.0 mm | Very high 46 |
| 14 Aug | 29.4 °C | 11 % | 29 km/h | 0.0 mm | Very high 48 |
| 15 Aug | 29.9 °C | 12 % | 41 km/h | 0.0 mm | Extreme 56 |
| 16 Aug | 30.5 °C | 9 % | 33 km/h | 0.0 mm | Extreme 51 |
| 17 Aug | 32.1 °C | 11 % | 36 km/h | 0.0 mm | Extreme 53 |
| 18 Aug | 32.1 °C | 9 % | 26 km/h | 0.0 mm | Very high 48 |
| 19 Aug | 26.4 °C | 17 % | 42 km/h | 0.0 mm | Extreme 55 |
| 20 Aug | 24.4 °C | 13 % | 52 km/h | 0.0 mm | Extreme 62 |
| 21 Aug | 26.4 °C | 11 % | 47 km/h | 0.0 mm | Extreme 58 |
| 22 Aug after | 28.8 °C | 15 % | 32 km/h | 0.0 mm | Very high 47 |
| 23 Aug after | 29.1 °C | 17 % | 42 km/h | 0.0 mm | Extreme 54 |
| 24 Aug after | 28.9 °C | 18 % | 41 km/h | 0.0 mm | Extreme 54 |
| 25 Aug after | 28.7 °C | 20 % | 37 km/h | 0.0 mm | Very high 48 |
| 26 Aug after | 30.6 °C | 17 % | 31 km/h | 0.0 mm | Very high 44 |
| 27 Aug after | 31.6 °C | 14 % | 34 km/h | 0.0 mm | Very high 47 |
| 28 Aug after | 32.5 °C | 14 % | 31 km/h | 0.0 mm | Very high 46 |
| 29 Aug after | 33.1 °C | 13 % | 33 km/h | 0.0 mm | Very high 48 |
| 30 Aug after | 32.8 °C | 15 % | 40 km/h | 0.0 mm | Extreme 55 |
| 31 Aug after | 31.8 °C | 16 % | 47 km/h | 0.0 mm | Extreme 61 |
| 1 Sept after | 30.2 °C | 16 % | 45 km/h | 0.0 mm | Extreme 58 |
| 2 Sept after | 29.6 °C | 16 % | 37 km/h | 0.0 mm | Extreme 51 |
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 · 337Every 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 Calai fire last?
- GWIS (Copernicus) dates it between 14 August 2022 and 21 August 2022: 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 11,883 hectares (118.8 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Calai (11,956 ha, 1.5 %).
- What was the weather like?
- During the fire the temperature reached 32.1 °C, humidity dropped to 9 % and gusts hit 52 km/h. The fire danger index (FWI) reached 62, class Extreme.
- Where does this data come from?
- From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Angola (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 (Public Domain). 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.