Burned area
satellite only53,936ha
Union of 6 GWIS (Copernicus) perimeters: overlapping areas count once.
- Source
- GWIS (Copernicus)
- Date
- 1 Apr 2023 – 29 Apr 2023
+− cross-check
No official record is matched to this page to compare it with.
MM · Myanmar · –
Sidoktaya fire, 1 April 2023 Kanpetlet, Saw, Sidoktaya
Out · last detection 30 Apr 2023, 19:46 UTC
The fire started on 1 April 2023 in Sidoktaya, Myanmar, and satellites saw it burning for 29 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 53,936 hectares from heat detections, spread across 3 municipalities.
It is the largest fire in Magway since 2016 (of 140 with a page). Number 3 in Myanmar in 2023, of 240.
Use this data
Compare with…
Use this data
Fire page data · version 2026-11-01matches the official recordwith caveatssatellite onlymodel
When copying, the sentence is
Tick the figures you want: they make up the lede and the CSV.
Duration by satellite
satellite only29days
1 Apr 2023 to 29 Apr 2023: first and last day with fire on the page.
- Source
- GWIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- last detection: 30 Apr 2023, 19:46 UTC
+− cross-check
Satellites pass a few times a day and cloud or smoke can hide the fire: a lack of detections is not an official extinction. Each country’s emergency service declares a fire contained or out.
Start
satellite only1 Apr 2023
First day with fire seen by the satellites or the perimeter.
- Source
- GWIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- 1 Apr 2023
+− cross-check
No official record is matched to this page, so the alert time and the cause are not known here.
The worst day
satellite only2,770MW
Total radiative power on 7 April 2023; hotspots that day: 236.
- Source
- NASA FIRMS · VIIRS (FRP)
- Date
- 7 Apr 2023
+− cross-check
Fire radiative power (FRP) measures the energy the fire gives off when the satellite passes. Added up by day, it compares intensity, not area.
Danger at the start
model8.5FWI · low
Fire Weather Index (Canadian system) computed by WorldFires for the day the fire started. Consecutive days without rain before: 11.
- Source
- WorldFires calculation (Canadian FWI system)
- Date
- 1 Apr 2023, local noon
- Model
- ERA5 0,25° (ECMWF · Copernicus C3S) · Open-Meteo.com
+− cross-check
This is an index computed from weather model data, not a measurement of the fire nor an official warning. Danger warnings are issued by each country’s authority. Emergency number and official warnings
Weather during the fire
model38.6°C · 21% RH
High of 38.6 °C and minimum humidity of 21% on 14 April 2023; gusts of 52 km/h on 22 April 2023.
- Source
- weather model at the fire’s grid cell
- Date
- 1 Apr 2023 – 29 Apr 2023
- Model
- ERA5 0,25° (ECMWF · Copernicus C3S) · Open-Meteo.com
+− cross-check
These are model values for a cell of about 25 km, not from a weather station: they may differ from what was measured on the ground.
Living inside
model≈ 300people
Estimated residents inside the perimeter and 0.15 ha of built-up area (100 m grid, epoch 2025).
- Source
- GHSL R2023A · JRC
- Date
- calculated on 24 October 2026
+− cross-check
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.
This page’s change log has been kept since 24 October 2026: every night what it publishes is compared and the difference is logged. Anything earlier is reconstructed from each source’s date and marked as reconstructed.
Show
-
logLast day with fire: 1 May 2023 → 29 April 2023.
-
logStart date: 26 March 2023 → 1 April 2023.
-
· reconstructed weatherWeather and FWI computed from the ERA5 reanalysis
-
logLast day with fire: 29 April 2023 → 1 May 2023.
-
logStart date: 1 April 2023 → 26 March 2023.
-
· reconstructed GHSLPopulation and built-up area computed
Area logged each night
Move the slider to see which area the page published each day.
Versioned permanent link
https://worldfires.org/en/fire/sidoktaya-2023-04-3?v=2026-11-01A version keeps the area, dates, name and official record; the area as it was logged (changes under 2% are not logged). The map, hotspots and weather always show today’s data.
Citation
A lede of about 60 words figures only, no adjectives
CSV for this fire sidoktaya-2023-04-3.csv · daily, no individual hotspots
| fecha | focos_viirs | frp_mw | tmax_c | tmin_c | hr_min_pct | viento_max_kmh | racha_max_kmh | precip_mm | fwi | clase_fwi | dentro_del_incendio |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023-04-01 | 8 | 56 | 29.9 | 18.6 | 42 | 11.2 | 46.4 | 2.7 | 8.5 | bajo | 1 |
| 2023-04-02 | 1 | 2 | 27.1 | 18.7 | 49 | 13 | 43.6 | 0.2 | 15.3 | moderado | 1 |
| 2023-04-03 | 5 | 7 | 29.4 | 16.7 | 39 | 12.3 | 45.4 | 0 | 20.9 | moderado | 1 |
| 2023-04-04 | 105 | 602 | 33.7 | 16.1 | 24 | 12.1 | 43.9 | 0 | 30.6 | alto | 1 |
| 2023-04-05 | 193 | 1,886 | 33.9 | 16.2 | 29 | 13 | 46.8 | 0 | 31.8 | alto | 1 |
| 2023-04-06 | 107 | 477 | 35.6 | 18.6 | 27 | 11.4 | 45.7 | 0 | 31.2 | alto | 1 |
| 2023-04-07 | 236 | 2,770 | 36.5 | 19.8 | 22 | 10 | 42.5 | 0 | 33.6 | alto | 1 |
| 2023-04-08 | 178 | 1,173 | 37.2 | 18.2 | 23 | 9.2 | 40.3 | 0 | 33.5 | alto | 1 |
| 2023-04-09 | 217 | 906 | 37.4 | 17.6 | 21 | 10.8 | 42.1 | 0 | 36.3 | alto | 1 |
| 2023-04-10 | 239 | 780 | 37.7 | 19.8 | 22 | 10.4 | 41.4 | 0 | 36.5 | alto | 1 |
| 2023-04-11 | 234 | 1,773 | 37 | 20.3 | 27 | 9.7 | 40.7 | 0 | 36.3 | alto | 1 |
| 2023-04-12 | 193 | 2,027 | 37.1 | 20.1 | 23 | 10.3 | 43.9 | 0 | 37.3 | alto | 1 |
| 2023-04-13 | 96 | 230 | 36.6 | 19.8 | 24 | 9.1 | 40.3 | 0 | 36.6 | alto | 1 |
| 2023-04-14 | 162 | 867 | 38.6 | 18.9 | 21 | 9.1 | 40.3 | 0 | 37.1 | alto | 1 |
| 2023-04-15 | 164 | 980 | 38.3 | 20.3 | 25 | 10.2 | 40.7 | 0 | 38.5 | muy_alto | 1 |
| 2023-04-16 | 36 | 172 | 36.7 | 22 | 29 | 13.6 | 50.4 | 0 | 40.6 | muy_alto | 1 |
| 2023-04-17 | 9 | 12 | 36.3 | 22 | 37 | 9.4 | 39.2 | 0.2 | 32.4 | alto | 1 |
| 2023-04-18 | 53 | 246 | 37.7 | 22.7 | 27 | 12.2 | 43.9 | 0 | 35.9 | alto | 1 |
| 2023-04-19 | 69 | 449 | 36.2 | 22.5 | 34 | 12.7 | 43.9 | 0 | 36.5 | alto | 1 |
| 2023-04-20 | 68 | 470 | 37.1 | 22.4 | 34 | 11.9 | 45.4 | 0.4 | 36.1 | alto | 1 |
| 2023-04-21 | 43 | 141 | 34.6 | 22.3 | 41 | 11.5 | 40.3 | 1.5 | 20 | moderado | 1 |
| 2023-04-22 | 35 | 452 | 35.4 | 20.1 | 24 | 13.3 | 51.8 | 0.4 | 36.4 | alto | 1 |
| 2023-04-23 | 16 | 145 | 35.1 | 21 | 29 | 11.7 | 42.8 | 0 | 35.2 | alto | 1 |
| 2023-04-24 | 9 | 85 | 33.9 | 20 | 33 | 9.4 | 37.8 | 0.1 | 33.5 | alto | 1 |
| 2023-04-25 | 15 | 619 | 35.9 | 19 | 30 | 11.9 | 41.4 | 0 | 35.9 | alto | 1 |
| 2023-04-26 | 33 | 123 | 37.7 | 20.7 | 25 | 13.1 | 48.2 | 0 | 39 | muy_alto | 1 |
| 2023-04-27 | 5 | 21 | 37.9 | 20.7 | 24 | 12.1 | 45 | 0 | 39 | muy_alto | 1 |
| 2023-04-28 | 1 | 4 | 37.8 | 20.1 | 27 | 14.2 | 49.3 | 0 | 41.3 | muy_alto | 1 |
| 2023-04-29 | 28 | 762 | 38.1 | 21.2 | 26 | 13.1 | 45.7 | 0 | 40.5 | muy_alto | 1 |
| 2023-04-30 | 7 | 31 | 37.5 | 21.2 | 27 | 10.6 | 44.3 | 0 | 38.4 | muy_alto | 0 |
| 2023-05-01 | 0 | 0 | 36.6 | 21.6 | 30 | 12.5 | 47.2 | 0.4 | 40.4 | muy_alto | 0 |
| 2023-05-02 | 0 | 0 | 33.1 | 21.6 | 33 | 8.6 | 41.8 | 1 | 24.8 | alto | 0 |
It is generated in your browser from this page’s data: one file per fire, aggregated by day and without individual hotspots.
Live widget for your story
It updates itself while the fire is still active and links to this page. Free, with the attribution shown at the bottom.
Sources for this page: GWIS (Copernicus), NASA FIRMS (VIIRS), ERA5 (ECMWF/Copernicus C3S) · Open-Meteo.com (CC BY 4.0), GHSL (JRC). Open-Meteo.com · How we build fire pages: methodology
- Burnt area
- 53,936ha
- GWIS perimeter (Copernicus)
- Duration
- 29days
- 1 Apr 2023 – 29 Apr 2023
- Municipalities hit
- 3
- municipalities
- Started on
- 1 Apr
- 2023
- Heat detections
- 2,565
- in a single hotspot: 0 MW
- Danger at start
- 8
- Low · FWI index
- Average daily power
- 609MW
- detected power per day, on average
Where it burned
HOTSPOTS BY DAY
1 Apr29 Apr
30 Apr 2023
How it evolved, day by day
1 Apr
7 Apr
13 Apr
19 Apr
25 Apr
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
52km/h · peak gust
21%lowest humidity
It had gone 11 days without rain (1 mm or more) when it started. Rain came after the fire: 1.0 mm on 2 May.
This area had burned before
82% of the perimeter overlaps earlier fires recorded since 2016: 14,341 ha in 2016, 15,598 ha in 2017, 6,036 ha in 2018, 23,897 ha in 2019, 28,156 ha in 2020, 17,576 ha in 2021, 9,314 ha in 2022. Part of it burned more than once, so the yearly figures add up to more than the 44,108 ha that had burned before.
- 16,450 ha Kanpetlet fire, March 2020 24,159 ha in total; the hectares shown are those it shares with this fire
- 12,372 ha Sidoktaya fire, March 2019 28,385 ha in total; the hectares shown are those it shares with this fire
- 6,207 ha Sidoktaya fire, March 2017 16,009 ha in total; the hectares shown are those it shares with this fire
- 5,842 ha Kanpetlet fire, April 2016 7,201 ha in total; the hectares shown are those it shares with this fire
- 4,247 ha Kanpetlet fire, March 2020 18,538 ha in total; the hectares shown are those it shares with this fire
- 3,554 ha Saw fire, February 2021 17,068 ha in total; the hectares shown are those it shares with this fire
- 3,166 ha Kanpetlet fire, March 2021 18,895 ha in total; the hectares shown are those it shares with this fire
- 3,103 ha Kanpetlet fire, April 2016 3,642 ha in total; the hectares shown are those it shares with this fire
How big is it?
London boundary: geoBoundaries · Office for National Statistics (Open Government Licence v3.0).
Paris boundary: geoBoundaries · Institut national de l'information géographique et forestière (IGN-F) (Etalab Open License 2.0).
Madrid boundary: geoBoundaries · Open Data ESRI, IGN Central Registry of Cartography Area (CC BY 4.0).
Berlin boundary: geoBoundaries · Federal Agency for Cartography and Geodesy (dl-de/by-2-0).
This compares size, not location: both shapes are at the same scale, north up, centred on each other.
What happened to each town
-
51,170 ha20 %
-
2,660 ha1.5 %
-
Sidoktaya where it started1,162 ha0.4 %
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 2025Built-up area0.15 ha
Residents≈ 300
Inside the perimeter there were about 0.15 hectares of built-up land and about 300 residents (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)
| Day | High | Min. humidity | Peak gust | Rain | Danger (FWI) |
|---|---|---|---|---|---|
| 1 Apr | 29.9 °C | 42 % | 46 km/h | 2.7 mm | Low 8 |
| 2 Apr | 27.1 °C | 49 % | 44 km/h | 0.2 mm | Moderate 15 |
| 3 Apr | 29.4 °C | 39 % | 45 km/h | 0.0 mm | Moderate 21 |
| 4 Apr | 33.7 °C | 24 % | 44 km/h | 0.0 mm | High 31 |
| 5 Apr | 33.9 °C | 29 % | 47 km/h | 0.0 mm | High 32 |
| 6 Apr | 35.6 °C | 27 % | 46 km/h | 0.0 mm | High 31 |
| 7 Apr | 36.5 °C | 22 % | 42 km/h | 0.0 mm | High 34 |
| 8 Apr | 37.2 °C | 23 % | 40 km/h | 0.0 mm | High 34 |
| 9 Apr | 37.4 °C | 21 % | 42 km/h | 0.0 mm | High 36 |
| 10 Apr | 37.7 °C | 22 % | 41 km/h | 0.0 mm | High 36 |
| 11 Apr | 37.0 °C | 27 % | 41 km/h | 0.0 mm | High 36 |
| 12 Apr | 37.1 °C | 23 % | 44 km/h | 0.0 mm | High 37 |
| 13 Apr | 36.6 °C | 24 % | 40 km/h | 0.0 mm | High 37 |
| 14 Apr | 38.6 °C | 21 % | 40 km/h | 0.0 mm | High 37 |
| 15 Apr | 38.3 °C | 25 % | 41 km/h | 0.0 mm | Very high 38 |
| 16 Apr | 36.7 °C | 29 % | 50 km/h | 0.0 mm | Very high 41 |
| 17 Apr | 36.3 °C | 37 % | 39 km/h | 0.2 mm | High 32 |
| 18 Apr | 37.7 °C | 27 % | 44 km/h | 0.0 mm | High 36 |
| 19 Apr | 36.2 °C | 34 % | 44 km/h | 0.0 mm | High 36 |
| 20 Apr | 37.1 °C | 34 % | 45 km/h | 0.4 mm | High 36 |
| 21 Apr | 34.6 °C | 41 % | 40 km/h | 1.5 mm | Moderate 20 |
| 22 Apr | 35.4 °C | 24 % | 52 km/h | 0.4 mm | High 36 |
| 23 Apr | 35.1 °C | 29 % | 43 km/h | 0.0 mm | High 35 |
| 24 Apr | 33.9 °C | 33 % | 38 km/h | 0.1 mm | High 34 |
| 25 Apr | 35.9 °C | 30 % | 41 km/h | 0.0 mm | High 36 |
| 26 Apr | 37.7 °C | 25 % | 48 km/h | 0.0 mm | Very high 39 |
| 27 Apr | 37.9 °C | 24 % | 45 km/h | 0.0 mm | Very high 39 |
| 28 Apr | 37.8 °C | 27 % | 49 km/h | 0.0 mm | Very high 41 |
| 29 Apr | 38.1 °C | 26 % | 46 km/h | 0.0 mm | Very high 40 |
| 30 Apr after | 37.5 °C | 27 % | 44 km/h | 0.0 mm | Very high 38 |
| 1 May after | 36.6 °C | 30 % | 47 km/h | 0.4 mm | Very high 40 |
| 2 May after | 33.1 °C | 33 % | 42 km/h | 1.0 mm | High 25 |
Its twins: fires that started in the same weather
It started with an FWI of 8.5, a minimum humidity of 42% and 11 days without rain. Fires in the area that started in weather like this since 2016: 5.
FWI at the start
8.5
Minimum humidity
42 %
Days without rain
11
this fire
chosen twins
rest of the area
Almost identicalSimilar
Outlines of the closest twins
This fire · Sidoktaya fire, 1 April 2023
53,936 ha
29 days
FWI 8.5
Min. humidity 42 %
Ann fire, May 2021
4,738 ha
13 days
FWI 14.2
Min. humidity 44 %
113 km away, in 2021
First rain (1 mm or more) after it ended: 1.8 mm on 21 May.
Matupi fire, March 2022
2,515 ha
4 days
FWI 19.4
Min. humidity 42 %
107 km away, in 2022
First rain (1 mm or more) after it ended: none in the following ten days.
Paletwa fire, April 2016
3,313 ha
7 days
FWI 10.1
Min. humidity 48 %
140 km away, in 2016
First rain (1 mm or more) after it ended: none in the following ten days.
Paletwa fire, April 2024
3,382 ha
5 days
FWI 15.2
Min. humidity 48 %
125 km away, in 2024
First rain (1 mm or more) after it ended: none in the following ten days.
Kanpetlet fire, April 2019
4,396 ha
20 days
FWI 14.9
Min. humidity 33 %
15 km away, in 2019
First rain (1 mm or more) after it ended: 1.2 mm on 1 May.
What happened to them
Fires in the area that started in similar weather: 5. With fewer than 15 we give no figures: they would be more noise than signal.
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
1.0 mmfirst rain
2 May3 days after it ended
52km/h · max. gust
It was considered over on 29 Apr, and on 2 May 1.0 mm fell. We do not know whether the rain or the firefighters put it out.
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.
Before and after, from space
Drag the line to compare the same ground before the fire and after it.
↔
Before · 25 Mar 2023
After · 6 May 2023
Sentinel-2 did not pass over on that day. Try another date, or use false colour, which is daily.
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 · CopernicusOn 12 April 2023 the air beside the fire reached 186 µg/m³ of PM2.5. That day averaged 97: 6.5 times the WHO daily guideline (15).
PM2.5 peak186 µg/m³
Days over the guideline29 days
PM10266 µg/m³
Optical depth2.84
WHO 15
30 Mar6 Apr13 Apr20 Apr27 Apr
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 · 0Every 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 time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
- 17,017 haKanpetletMarch 2024 · 23 days · 22 km away
- 24,159 haKanpetlet20 March 2020 · 30 days · 23 km away
- 19,972 haKanpetletMarch 2025 · 30 days · 24 km away
- 18,895 haKanpetlet4 March 2021 · 24 days · 25 km away
- 17,068 haSaw21 February 2021 · 32 days · 27 km away
- 18,538 haKanpetlet9 March 2020 · 40 days · 28 km away
Frequently asked questions
- How long did the Sidoktaya fire last?
- GWIS (Copernicus) dates it between 1 April 2023 and 29 April 2023: 29 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 53,936 hectares (539.4 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire entered 3 municipalities: Kanpetlet (51,170 ha, 20 %); Saw (2,660 ha, 1.5 %); Sidoktaya (1,162 ha, 0.4 %).
- What was the weather like?
- During the fire the temperature reached 38.6 °C, humidity dropped to 21 % and gusts hit 52 km/h. The fire danger index (FWI) reached 41, class Very 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.
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 · 4 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
- Last day with fire: 1 May 2023 → 29 April 2023.
- Start date: 26 March 2023 → 1 April 2023.
- Last day with fire: 29 April 2023 → 1 May 2023.
- Start date: 1 April 2023 → 26 March 2023.
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.
Report an error
How we know this
- Perimeter: GWIS (Copernicus), rebuilt from heat detections rather than mapped on imagery; 6 polygons grouped in this page.
- Dates from the perimeter: the VIIRS detections inside it did not change them. No 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.
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.