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ZA · South Africa · –

Blue Crane Route fire, August 2024 Sundays River Valley, Blue Crane Route

Out · last detection 17 Aug 2024, 23:17 UTC

The fire started on 8 August 2024 in Blue Crane Route, South Africa, and satellites saw it burning for 10 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 5,126 hectares from heat detections, spread across 2 municipalities.

It is the 32th largest in Eastern Cape since 2016 (of 152 with a page). Number 18 in South Africa in 2024, of 121.

Burnt area
5,126ha
GWIS perimeter (Copernicus)
Duration
10days
8 Aug 2024 – 17 Aug 2024
Municipalities hit
2
municipalities
Started on
8 Aug
2024
Heat detections
266
in a single hotspot: 72 MW
Danger at start
32
High · FWI index
Average daily power
191MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 8 Aug17 Aug
17 Aug 2024

How it evolved, day by day

8 Aug 2024 · 18 MW · 6 9 Aug 2024 · 682 MW · 83 10 Aug 2024 · 427 MW · 82 11 Aug 2024 · 60 MW · 12 12 Aug 2024 · 416 MW · 37 13 Aug 2024 · 6 MW · 3 14 Aug 2024 · 48 MW · 8 15 Aug 2024 · 237 MW · 33 16 Aug 2024 · 12 MW · 1 17 Aug 2024 · 1 MW · 1
9 Aug 12 Aug 14 Aug 16 Aug

Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.

The weather it burned in

28°high
84km/h · peak gust
4%lowest humidity

It had gone 10 days without rain (1 mm or more) when it started.

This area had burned before

No earlier perimeters overlap this fire since 2016, when the satellite record begins.

How big is it?

10 km
It burned the equivalent of 3.2% of the area of London (51 km² against 1,583 km²).

London boundary: geoBoundaries · Office for National Statistics (Open Government Licence v3.0).

This compares size, not location: both shapes are at the same scale, north up, centred on each other.

What happened to each town

  1. 3,270 ha reached on 9 Aug
    0.5 %
  2. Blue Crane Route where it started
    1,872 ha reached on 8 Aug
    0.2 %

Burnt area inside each municipality, from crossing the GWIS perimeter with administrative boundaries. The distance runs from the point marking the centre of each area to the nearest fire: staying a kilometre away does not mean it reached the houses.

People and buildings inside the perimeter

GHSL 2025
Built-up area< 0.1 ha
Residents< 20

Inside the perimeter there was no noticeable built-up land and almost nobody lived there (GHSL 2025, satellite-based estimate).

This is an estimate on 100 m cells, made from satellite imagery and census data: it does not mean that homes burned or that anyone was harmed. The perimeter also contains land that never burned. The GHSL 2025 epoch is a projection made from 2020 and earlier data.

Source: Global Human Settlement Layer (GHS-BUILT-S and GHS-POP R2023A), European Commission Joint Research Centre (JRC), © European Union, CC BY 4.0. Sum inside the perimeter computed by WorldFires. human-settlement.emergency.copernicus.eu

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)

Started with Very dry air: 37 % of the area in South Africa

Day High Min. humidity Peak gust Rain Danger (FWI)
8 Aug 26.3 °C 14 % 32 km/h 0.0 mm High 32
9 Aug 22.1 °C 22 % 84 km/h 0.0 mm Extreme 53
10 Aug 25.8 °C 14 % 64 km/h 0.0 mm Very high 43
11 Aug 20.7 °C 34 % 41 km/h 0.2 mm High 28
12 Aug 18.8 °C 28 % 32 km/h 0.0 mm High 22
13 Aug 27.8 °C 8 % 71 km/h 0.0 mm Extreme 53
14 Aug 17.4 °C 23 % 64 km/h 0.3 mm Very high 42
15 Aug 21.9 °C 16 % 27 km/h 0.0 mm High 29
16 Aug 27.8 °C 10 % 26 km/h 0.0 mm High 32
17 Aug 28.5 °C 4 % 37 km/h 0.0 mm Very high 44
18 Aug after 23.7 °C 22 % 28 km/h 0.0 mm High 33
19 Aug after 27.4 °C 13 % 28 km/h 0.0 mm High 33
20 Aug after 30.1 °C 9 % 30 km/h 0.0 mm High 35
21 Aug after 26.3 °C 8 % 57 km/h 0.0 mm Extreme 54
22 Aug after 12.9 °C 49 % 38 km/h 0.0 mm High 25
23 Aug after 29.6 °C 11 % 36 km/h 0.0 mm Very high 40
24 Aug after 30.9 °C 10 % 54 km/h 0.0 mm Very high 49
25 Aug after 22.9 °C 27 % 26 km/h 0.0 mm High 31
26 Aug after 29.0 °C 8 % 70 km/h 0.0 mm Extreme 66
27 Aug after 28.6 °C 10 % 88 km/h 0.0 mm Very extreme 81

Its twins: fires that started in the same weather

It started with an FWI of 31.7, a minimum humidity of 14% and 10 days without rain. Fires in the area that started in weather like this since 2016: 23.

FWI at the start 31.7
Minimum humidity 14 %
Days without rain 10
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

Kou-Kamma fire, December 2016
38,762 ha 7 days FWI 34.3 Min. humidity 14 % 151 km away, in 2016

First rain (1 mm or more) after it ended: 1.4 mm on 10 Dec.

What happened to them

4 days
median duration
3,122 ha
median area
100 %
went past 1,000 ha
3.0 mm
rain at the end (median; 21 of 23 had it)

It was 1.6 times larger than the median of its twins and lasted 10 days, against 4 days.

Only 6 of its 23 twins burned more. The weather on the first day does not explain everything: the wind in the following days, the fuel and the firefighting also count. In 2 of 23, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 3.0 mm.

This is a bank of analogues: it shows what usually happens, not what will happen. With fewer than 15 twins we give no figures. How we calculate it

How it ended

—first rain
—no rain in ten days
84km/h · max. gust

It was considered over on 17 Aug, and not even 1 mm fell in the following ten days: it went out without rain. Twins with rain when they ended: 21 of 23, with a median of 3.0 mm.

Weather on this page: Open-Meteo.com (CC BY 4.0) · Copernicus Climate Change Service (ERA5)

How a twin is chosen

  • Same area: fires that have already ended, less than 250 km from this one, since 2016.
  • Same start: we compare the FWI on the first day, the minimum humidity that day and the run of days without rain before it. The slider sets how much they may differ.
  • Only pages with final weather data (ERA5 reanalysis) calculated in the same way as this fire’s; agricultural and grass burns and pages with data under review are left out.
  • Fires burning at the same time as this one (a week before or after) are left out: they share the same spell of weather and do not count as a precedent.
  • They are sorted by similarity, and the outlines of the first five are drawn.

How we calculate it

Before and after, from space

Drag the line to compare the same ground before the fire and after it.

Before · 1 Aug 2024
After · 24 Aug 2024

If the day is cloudy, change the date: each satellite passes once a day. In false colour the burnt ground looks brown or red.

The smoke

CAMS · Copernicus

On 11 August 2024 the air beside the fire reached 20 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).

PM2.5 peak20 µg/m³
Days over the guideline0 days
PM1029 µg/m³
Optical depth0.21
6 Aug9 Aug12 Aug15 Aug18 Aug
Good Fair Moderate Poor Very poor Extremely poor

Particles from the Copernicus CAMS model at the centre of the perimeter; these are not measurements in each town. The pale bar is the worst hour, the solid one the daily average.

Open-Meteo.com (CC BY 4.0) · Copernicus Atmosphere Monitoring Service (CAMS)

Detections table · 266Every satellite heat detection, one by one, with time, satellite, power and coordinates.
⬇ Download CSV Times in UTC. Each detection is a 375 m pixel: a large fire yields hundreds per pass.
Date and timeSatelliteFRP (MW)LatLon

Other fires nearby

All fires in South Africa

Frequently asked questions

How long did the Blue Crane Route fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 8 August 2024 to 17 August 2024 (10 days). The perimeter dates it from 8 August 2024 to 16 August 2024.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 5,126 hectares (51.3 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Sundays River Valley (3,270 ha, 0.5 %); Blue Crane Route (1,872 ha, 0.2 %).
What was the weather like?
During the fire the temperature reached 28.5 °C, humidity dropped to 4 % and gusts hit 84 km/h. The fire danger index (FWI) reached 53, class Extreme.
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.
How did the fires that started in similar weather in this area end?
Fires less than 250 km away that started since 2016 with a similar FWI, humidity and dry spell: 23. Their median duration was 4 days and their median area 3,122 ha; 100 % went past 1,000 ha. Only 6 of its 23 twins burned more. The weather on the first day does not explain everything: the wind in the following days, the fuel and the firefighting also count. In 2 of 23, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 3.0 mm.

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 · Emergency number and official warnings

Satellite cross-check

History of this page · 1 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
  1. Last day with fire: 16 August 2024 → 17 August 2024.

RSS Changes to this page With cross-checks and a citable version

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
What do you think is wrong?

We will only use your email to reply about this report. Privacy. This is not an emergency service: if there is a fire now, call 10177 · 112.

How we know this
  • Perimeter: GWIS (Copernicus), rebuilt from heat detections rather than mapped on imagery.
  • Dates adjusted with the VIIRS detections inside the perimeter, which said 8 August 2024 to 16 August 2024. 266 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.
  • Built-up area and population come from the JRC Global Human Settlement Layer (epoch 2025, 100 m cells), summed inside the perimeter: an estimate of what was there, not a damage count.

How we build fire pages: methodology

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.