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MM · Myanmar · –

Pwintbyu fire, February 2025 Pwintbyu, Minbu

Out · last detection 4 Mar 2025, 06:37 UTC

The fire started on 19 February 2025 in Pwintbyu, Myanmar, and satellites saw it burning for 14 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 3,697 hectares from heat detections, spread across 2 municipalities.

It is the 45th largest in Magway since 2016 (of 140 with a page). Number 47 in Myanmar in 2025, of 133.

The power measured by the satellite is low (19.3 MW in the strongest hotspot), more typical of grass or stubble burning, or a slow surface fire, than of a large crown fire.

Burnt area
3,697ha
GWIS perimeter (Copernicus)
Duration
14days
19 Feb 2025 – 4 Mar 2025
Municipalities hit
2
municipalities
Started on
19 Feb
2025
Heat detections
125
in a single hotspot: 19 MW
Danger at start
28
High · FWI index
Average daily power
44MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 19 Feb4 Mar
4 Mar 2025

How it evolved, day by day

19 Feb 2025 · 7 MW · 3 20 Feb 2025 · 4 MW · 1 21 Feb 2025 · 3 MW · 1 25 Feb 2025 · 6 MW · 3 26 Feb 2025 · 23 MW · 8 27 Feb 2025 · 25 MW · 8 28 Feb 2025 · 58 MW · 27 1 Mar 2025 · 118 MW · 25 2 Mar 2025 · 202 MW · 34 3 Mar 2025 · 29 MW · 14 4 Mar 2025 · 8 MW · 1
19 Feb 25 Feb 2 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

39°high
29km/h · peak gust
26%lowest humidity

It had gone more than two months without rain (1 mm or more) when it started.

This area had burned before

15% of the perimeter overlaps earlier fires recorded since 2016: 563 ha in 2024.

How big is it?

10 km
It burned the equivalent of 2.3% of the area of London (37 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. Pwintbyu where it started
    1,916 ha reached on 19 Feb
    1.6 %
  2. 1,800 ha reached on 25 Feb
    1.1 %

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 60 days without rain: 24 % of the area in Myanmar

Day High Min. humidity Peak gust Rain Danger (FWI)
19 Feb 33.1 °C 33 % 24 km/h 0.0 mm High 28
20 Feb 33.2 °C 39 % 29 km/h 0.0 mm High 29
21 Feb 33.4 °C 40 % 23 km/h 0.0 mm High 28
22 Feb 34.3 °C 40 % 23 km/h 0.0 mm High 28
23 Feb 33.6 °C 42 % 27 km/h 0.0 mm High 28
24 Feb 33.3 °C 41 % 25 km/h 0.0 mm High 27
25 Feb 35.2 °C 35 % 19 km/h 0.0 mm High 28
26 Feb 34.0 °C 30 % 28 km/h 0.0 mm High 30
27 Feb 35.7 °C 31 % 19 km/h 0.0 mm High 29
28 Feb 36.0 °C 26 % 21 km/h 0.0 mm High 33
1 Mar 34.4 °C 35 % 24 km/h 0.0 mm High 32
2 Mar 38.7 °C 30 % 20 km/h 0.0 mm High 33
3 Mar 37.5 °C 34 % 28 km/h 0.0 mm High 33
4 Mar 36.9 °C 34 % 24 km/h 0.0 mm High 34
5 Mar after 35.4 °C 31 % 30 km/h 0.0 mm High 34
6 Mar after 35.2 °C 32 % 32 km/h 0.0 mm High 34
7 Mar after 36.9 °C 27 % 32 km/h 0.0 mm Very high 39
8 Mar after 36.5 °C 25 % 34 km/h 0.0 mm Very high 42
9 Mar after 34.6 °C 36 % 28 km/h 0.0 mm High 33
10 Mar after 36.2 °C 32 % 28 km/h 0.0 mm High 33
11 Mar after 38.8 °C 25 % 32 km/h 0.0 mm Very high 42
12 Mar after 37.6 °C 33 % 25 km/h 0.0 mm High 38
13 Mar after 37.8 °C 29 % 25 km/h 0.0 mm High 38
14 Mar after 40.9 °C 25 % 20 km/h 0.0 mm Very high 38

Its twins: fires that started in the same weather

It started with an FWI of 27.8, a minimum humidity of 33% and more than two months without rain. Fires in the area that started in weather like this since 2016: 20.

FWI at the start 27.8
Minimum humidity 33 %
Days without rain 60+
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

Sinbaungwe fire, February 2016
2,586 ha 9 days FWI 28.0 Min. humidity 32 % 76 km away, in 2016

First rain (1 mm or more) after it ended: 3.2 mm on 27 Feb.

What happened to them

15 days
median duration
3,200 ha
median area
0 %
went past 10,000 ha
2.8 mm
rain at the end (median; 10 of 20 had it)

It burned an area similar to its twins (3,697 ha against a median of 3,200 ha) and lasted 14 days, against 15 days.

In 10 of 20, 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 2.8 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
29km/h · max. gust

It was considered over on 4 Mar, and not even 1 mm fell in the following ten days: it went out without rain. Twins with rain when they ended: 10 of 20, with a median of 2.8 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 · 12 Feb 2025
After · 11 Mar 2025

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 7 March 2025 the air beside the fire reached 76 µg/m³ of PM2.5. That day averaged 52: 3.5 times the WHO daily guideline (15).

PM2.5 peak76 µg/m³
Days over the guideline12 days
PM1086 µg/m³
Optical depth0.54
23 Feb26 Feb1 Mar4 Mar7 Mar
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 · 125Every 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 Myanmar

Frequently asked questions

How long did the Pwintbyu fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 19 February 2025 to 4 March 2025 (14 days). The perimeter dates it from 25 February 2025 to 4 March 2025.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 3,697 hectares (37.0 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Pwintbyu (1,916 ha, 1.6 %); Minbu (1,800 ha, 1.1 %).
What was the weather like?
During the fire the temperature reached 38.7 °C, humidity dropped to 26 % and gusts hit 29 km/h. The fire danger index (FWI) reached 34, class High.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Myanmar (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: 20. Their median duration was 15 days and their median area 3,200 ha; 0 % went past 10,000 ha. In 10 of 20, 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 2.8 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.

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. Start date: 25 February 2025 → 19 February 2025.

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.

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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 25 February 2025 to 4 March 2025. 125 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 4.0 (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.