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Phookood fire, 11 March 2023 Phookood

Out · last detection 29 Mar 2023, 07:16 UTC

The fire started on 11 March 2023 in Phookood, Laos, and satellites saw it burning for 19 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 3,311 hectares from heat detections, spread across a single municipality.

It is the 49th largest in Xiangkhouang since 2016 (of 109 with a page). Number 89 in Laos in 2023, of 239.

Compare with…
Burnt area
3,311ha
GWIS perimeter (Copernicus)
Duration
19days
11 Mar 2023 – 29 Mar 2023
Municipalities hit
1
districts
Started on
11 Mar
2023
Heat detections
154
in a single hotspot: 190 MW
Danger at start
16
Moderate · FWI index
Average daily power
241MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 11 Mar29 Mar
29 Mar 2023

How it evolved, day by day

11 Mar 2023 · 185 MW · 7 12 Mar 2023 · 204 MW · 10 15 Mar 2023 · 3 MW · 1 16 Mar 2023 · 19 MW · 1 17 Mar 2023 · 1 MW · 1 18 Mar 2023 · 294 MW · 5 21 Mar 2023 · 538 MW · 37 22 Mar 2023 · 789 MW · 19 23 Mar 2023 · 435 MW · 11 24 Mar 2023 · 329 MW · 15 25 Mar 2023 · 180 MW · 17 26 Mar 2023 · 193 MW · 12 27 Mar 2023 · 20 MW · 4 28 Mar 2023 · 385 MW · 11 29 Mar 2023 · 35 MW · 3
11 Mar 16 Mar 21 Mar 22 Mar 24 Mar 27 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

33°high
48km/h · peak gust
30%lowest humidity

It had gone 17 days without rain (1 mm or more) when it started. Rain came after the fire: 3.3 mm on 30 Mar.

This area had burned before

76% of the perimeter overlaps earlier fires recorded since 2016: 2,203 ha in 2017, 194 ha in 2018, 116 ha in 2019, 40 ha in 2020, 627 ha in 2022. Part of it burned more than once, so the yearly figures add up to more than the 2,525 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 2.1% of the area of London (33 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. Phookood where it started
    3,325 ha
    1.3 %

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)
11 Mar 30.2 °C 41 % 25 km/h 0.0 mm Moderate 16
12 Mar 27.1 °C 60 % 24 km/h 2.4 mm Very low 4
13 Mar 21.8 °C 72 % 35 km/h 0.3 mm Very low 5
14 Mar 26.8 °C 48 % 30 km/h 0.3 mm Low 10
15 Mar 30.1 °C 36 % 20 km/h 0.0 mm Moderate 16
16 Mar 27.5 °C 50 % 26 km/h 0.3 mm Moderate 16
17 Mar 27.6 °C 53 % 28 km/h 3.0 mm Very low 3
18 Mar 30.6 °C 50 % 34 km/h 5.4 mm Very low 2
19 Mar 30.7 °C 50 % 41 km/h 0.7 mm Low 7
20 Mar 31.1 °C 46 % 39 km/h 3.5 mm Very low 4
21 Mar 30.9 °C 46 % 48 km/h 3.3 mm Very low 4
22 Mar 31.9 °C 36 % 46 km/h 0.2 mm Moderate 14
23 Mar 32.4 °C 36 % 45 km/h 0.1 mm Moderate 17
24 Mar 32.9 °C 33 % 41 km/h 0.0 mm Moderate 18
25 Mar 33.0 °C 30 % 45 km/h 0.0 mm Moderate 21
26 Mar 31.2 °C 35 % 43 km/h 0.0 mm Moderate 21
27 Mar 30.7 °C 40 % 38 km/h 0.0 mm Moderate 20
28 Mar 29.4 °C 53 % 41 km/h 0.7 mm Moderate 13
29 Mar 30.3 °C 46 % 39 km/h 1.3 mm Low 11
30 Mar after 28.9 °C 56 % 34 km/h 3.3 mm Very low 3

Before and after, from space

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

Before · 4 Mar 2023
After · 5 Apr 2023

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 · 154Every 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 Phookood fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 11 March 2023 to 29 March 2023 (19 days). The perimeter dates it from 18 March 2023 to 28 March 2023.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 3,311 hectares (33.1 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Phookood (3,325 ha, 1.3 %).
What was the weather like?
During the fire the temperature reached 33.0 °C, humidity dropped to 30 % and gusts hit 48 km/h. The fire danger index (FWI) reached 21, 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 18 March 2023 to 28 March 2023. 154 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.