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Barkly fire, 20 November 2017 Barkly

Out · last detection 22 Nov 2017, 16:52 UTC

The fire started on 20 November 2017 in Barkly, Australia, and satellites saw it burning for 3 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 5,110 hectares from heat detections, spread across a single municipality.

It is the 3384th largest in Northern Territory since 2016 (of 3496 with a page). Number 836 in Australia in 2017, of 862.

Compare with…
Burnt area
5,110ha
GWIS perimeter (Copernicus)
Duration
3days
20 Nov 2017 – 22 Nov 2017
Municipalities hit
1
local government areas
Started on
20 Nov
2017
Heat detections
162
in a single hotspot: 216 MW
Danger at start
55
Extreme · FWI index
Average daily power
1.9GW
detected power per day, on average

Where it burned

22 Nov 2017
HOTSPOTS BY DAY 20 Nov22 Nov

How it evolved, day by day

20 Nov 2017 · 198 MW · 17 21 Nov 2017 · 876 MW · 60 22 Nov 2017 · 4,610 MW · 85
20 Nov 21 Nov 22 Nov

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

The weather it burned in

39°high
48km/h · peak gust
10%lowest humidity

It had gone 3 days without rain (1 mm or more) when it started. Rain came after the fire: 1.4 mm on 23 Nov.

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. Barkly where it started
    5,167 ha reached on 20 Nov
    0.0 %

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)
20 Nov 39.2 °C 10 % 48 km/h 0.0 mm Extreme 55
21 Nov 38.1 °C 17 % 45 km/h 0.0 mm Extreme 64
22 Nov 38.5 °C 10 % 36 km/h 0.0 mm Extreme 52
23 Nov after 36.6 °C 20 % 37 km/h 1.4 mm Very high 42

Before and after, from space

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

Before · 13 Nov 2017
After · 29 Nov 2017

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 · 162Every 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 Australia ›

Frequently asked questions

How long did the Barkly fire last?
GWIS (Copernicus) dates it between 20 November 2017 and 22 November 2017: 3 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 5,110 hectares (51.1 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Barkly (5,167 ha, 0.0 %).
What was the weather like?
During the fire the temperature reached 39.2 °C, humidity dropped to 10 % and gusts hit 48 km/h. The fire danger index (FWI) reached 64, class Extreme.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Australia (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: 000

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
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 000.

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. 162 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.

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 ADM2 (Creative Commons Attribution 4.0 International (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.