Impendle fire, 23 July 2020 Impendle
The fire started on 23 July 2020 in Impendle, South Africa, and satellites saw it burning for 4 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 5,429 hectares from heat detections, spread across a single municipality.
It is the 16th largest in KwaZulu-Natal since 2016 (of 171 with a page). Number 11 in South Africa in 2020, of 95.
- Burnt area
- 5,429ha
- GWIS perimeter (Copernicus)
- Duration
- 4days
- 23 Jul 2020 – 26 Jul 2020
- Municipalities hit
- 1
- municipalities
- Started on
- 23 Jul
- 2020
- Heat detections
- 151
- in a single hotspot: 35 MW
- Danger at start
- 29
- High · FWI index
- Energy released
- 1.0GW
- 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 8 days without rain (1 mm or more) when it started. Rain came after the fire: 2.2 mm on 5 Aug.
This area had burned before
52% of the perimeter overlaps earlier fires recorded since 2016: 769 ha in 2016, 1,568 ha in 2018, 1,048 ha in 2019. Part of it burned more than once, so the yearly figures add up to more than the 2,836 ha that had burned before.
What happened to each town
-
Impendle where it started5,444 ha reached on 23 Jul3.4 %
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) |
|---|---|---|---|---|---|
| 23 Jul | 18.7 °C | 25 % | 22 km/h | 0.0 mm | High 29 |
| 24 Jul | 18.9 °C | 28 % | 22 km/h | 0.0 mm | High 28 |
| 25 Jul | 20.6 °C | 19 % | 22 km/h | 0.0 mm | High 29 |
| 26 Jul | 19.0 °C | 23 % | 27 km/h | 0.0 mm | High 31 |
| 27 Jul after | 14.3 °C | 55 % | 27 km/h | 0.9 mm | Moderate 12 |
| 28 Jul after | 18.7 °C | 26 % | 25 km/h | 0.0 mm | Moderate 21 |
| 29 Jul after | 18.8 °C | 27 % | 23 km/h | 0.0 mm | High 23 |
| 30 Jul after | 20.4 °C | 17 % | 28 km/h | 0.0 mm | High 30 |
| 31 Jul after | 21.3 °C | 23 % | 25 km/h | 0.0 mm | High 29 |
| 1 Aug after | 22.0 °C | 16 % | 22 km/h | 0.0 mm | High 31 |
| 2 Aug after | 23.2 °C | 21 % | 25 km/h | 0.0 mm | High 33 |
| 3 Aug after | 23.4 °C | 19 % | 23 km/h | 0.0 mm | High 32 |
| 4 Aug after | 23.2 °C | 14 % | 23 km/h | 0.1 mm | High 34 |
| 5 Aug after | 15.9 °C | 56 % | 35 km/h | 2.2 mm | Low 7 |
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 · 151Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
- 9,087 haImpendle18 July 2020 · 4 days · 11 km away
- 8,607 haImpendleSeptember 2019 · 4 days · 11 km away
- 5,109 haMpofanaSeptember 2022 · 5 days · 19 km away
- 8,310 haInkosi Langalibalele15 July 2020 · 4 days · 20 km away
- 5,535 haInkosi Langalibalele27 July 2021 · 2 days · 22 km away
- 5,940 haInkosi LangalibaleleJuly 2019 · 2 days · 36 km away
Frequently asked questions
- How long did the Impendle fire last?
- GWIS (Copernicus) dates it between 23 July 2020 and 26 July 2020: 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 5,429 hectares (54.3 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Impendle (5,444 ha, 3.4 %).
- What was the weather like?
- During the fire the temperature reached 20.6 °C, humidity dropped to 19 % and gusts hit 27 km/h. The fire danger index (FWI) reached 31, class High.
- Where does this data come from?
- From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of South Africa (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: 10177 · 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
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 ADM3 (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.