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Vilabuly fire, 7 March 2018 Vilabuly

Out · last detection 13 Mar 2018, 06:10 UTC

The fire started on 7 March 2018 in Vilabuly, Laos, and satellites saw it burning for 7 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 2,675 hectares from heat detections, spread across a single municipality.

It is the 50th largest in Savannakhet since 2016 (of 95 with a page). Number 58 in Laos in 2018, of 90.

Compare with…
Burnt area
2,675ha
GWIS perimeter (Copernicus)
Duration
7days
7 Mar 2018 – 13 Mar 2018
Municipalities hit
1
districts
Started on
7 Mar
2018
Heat detections
66
in a single hotspot: 41 MW
Danger at start
5
Very low · FWI index
Average daily power
154MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 7 Mar13 Mar
13 Mar 2018

How it evolved, day by day

7 Mar 2018 · 42 MW · 6 8 Mar 2018 · 28 MW · 1 10 Mar 2018 · 14 MW · 2 11 Mar 2018 · 60 MW · 5 12 Mar 2018 · 68 MW · 6 13 Mar 2018 · 710 MW · 46
7 Mar 8 Mar 10 Mar 11 Mar 12 Mar 13 Mar

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

The weather it burned in

34°high
63km/h · peak gust
41%lowest humidity

It had gone 0 days without rain (1 mm or more) when it started. Rain came after the fire: 4.1 mm on 14 Mar.

This area had burned before

42% of the perimeter overlaps earlier fires recorded since 2016: 603 ha in 2016, 763 ha in 2017. Part of it burned more than once, so the yearly figures add up to more than the 1,112 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 1.7% of the area of London (27 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. Vilabuly where it started
    2,688 ha
    1.5 %

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.

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)
7 Mar 34.3 °C 50 % 25 km/h 2.9 mm Very low 5
8 Mar 25.7 °C 63 % 62 km/h 0.0 mm Moderate 12
9 Mar 22.7 °C 56 % 63 km/h 0.0 mm Moderate 15
10 Mar 25.2 °C 51 % 50 km/h 0.0 mm Moderate 15
11 Mar 28.7 °C 46 % 41 km/h 0.0 mm Moderate 16
12 Mar 29.8 °C 48 % 41 km/h 0.0 mm Moderate 17
13 Mar 32.7 °C 41 % 30 km/h 0.0 mm Moderate 18
14 Mar after 28.9 °C 58 % 27 km/h 4.1 mm Very low 2

Before and after, from space

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

Before · 28 Feb 2018
After · 20 Mar 2018

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 · 66Every 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 Laos ›

Frequently asked questions

How long did the Vilabuly fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 7 March 2018 to 13 March 2018 (7 days). The perimeter dates it from 10 March 2018 to 13 March 2018.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 2,675 hectares (26.8 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Vilabuly (2,688 ha, 1.5 %).
What was the weather like?
During the fire the temperature reached 34.3 °C, humidity dropped to 41 % and gusts hit 63 km/h. The fire danger index (FWI) reached 18, class Moderate.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Laos (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

History of this page Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.

No changes since 24 October 2026.

RSS Changes to this page

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.

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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 10 March 2018 to 13 March 2018. 66 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 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.