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Monte Negro fire, August 2019 Monte Negro, Ariquemes

Out · last detection 17 Aug 2019, 18:06 UTC

The fire started on 6 August 2019 in Monte Negro, Brazil, and satellites saw it burning for 12 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 4,764 hectares from heat detections, spread across 2 municipalities.

It is the 132th largest in Rondônia since 2016 (of 300 with a page). Number 497 in Brazil in 2019, of 974.

Burnt area
4,764ha
GWIS perimeter (Copernicus)
Duration
12days
6 Aug 2019 – 17 Aug 2019
Municipalities hit
2
municipalities
Started on
6 Aug
2019
Heat detections
225
in a single hotspot: 46 MW
Danger at start
37
High · FWI index
Energy released
1.4GW
sum of detected power

Where it burned

17 Aug 2019
HOTSPOTS BY DAY 6 Aug17 Aug

How it evolved, day by day

678911121314151617

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

The weather it burned in

36°high
48km/h · peak gust
22%lowest humidity

It had gone 29 days without rain (1 mm or more) when it started. Rain came after the fire: 17.6 mm on 25 Aug.

This area had burned before

10% of the perimeter overlaps earlier fires recorded since 2016: 469 ha in 2016, 19 ha in 2017.

What happened to each town

  1. Monte Negro 11,548 inhabitants where it started
    3,470 ha reached on 5 Aug
    1.8 %
  2. Ariquemes 96,833 inhabitants
    1,322 ha reached on 14 Aug
    0.3 %

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)
5 Aug 31.6 °C 24 % 32 km/h 0.0 mm High 37
6 Aug 33.5 °C 28 % 24 km/h 0.0 mm High 34
7 Aug 34.9 °C 31 % 18 km/h 0.0 mm High 33
8 Aug 33.8 °C 38 % 21 km/h 0.0 mm High 31
9 Aug 35.2 °C 29 % 19 km/h 0.0 mm High 30
10 Aug 36.3 °C 25 % 24 km/h 0.0 mm High 36
11 Aug 36.1 °C 22 % 28 km/h 0.0 mm High 38
12 Aug 36.3 °C 22 % 26 km/h 0.0 mm Very high 38
13 Aug 36.3 °C 23 % 41 km/h 0.0 mm Very high 45
14 Aug 31.8 °C 27 % 48 km/h 0.0 mm Very high 46
15 Aug 35.4 °C 26 % 33 km/h 0.0 mm Very high 41
16 Aug 35.1 °C 30 % 26 km/h 0.0 mm High 37
17 Aug 34.0 °C 42 % 31 km/h 0.0 mm High 31
18 Aug after 32.4 °C 55 % 22 km/h 1.3 mm Moderate 13
19 Aug after 33.2 °C 45 % 24 km/h 0.6 mm Moderate 21
20 Aug after 34.0 °C 43 % 29 km/h 1.0 mm Moderate 20
21 Aug after 33.6 °C 41 % 37 km/h 0.0 mm High 25
22 Aug after 35.6 °C 31 % 27 km/h 0.0 mm High 31
23 Aug after 35.3 °C 33 % 40 km/h 0.0 mm High 35
24 Aug after 35.1 °C 38 % 27 km/h 0.0 mm High 32
25 Aug after 32.7 °C 53 % 25 km/h 17.6 mm Very low 3

Before and after, from space

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

Before · 30 Jul 2019
After · 24 Aug 2019

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 · 225Every 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 Brazil ›

Frequently asked questions

How long did the Monte Negro fire last?
GWIS (Copernicus) dates it between 6 August 2019 and 17 August 2019: 12 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 4,764 hectares (47.6 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Monte Negro (3,470 ha, 1.8 %); Ariquemes (1,322 ha, 0.3 %).
What was the weather like?
During the fire the temperature reached 36.3 °C, humidity dropped to 22 % and gusts hit 48 km/h. The fire danger index (FWI) reached 46, class Very high.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Brazil (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: 193

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 193.

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 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.