Burned area
satellite only50,314ha
Union of 8 GWIS (Copernicus) perimeters: overlapping areas count once.
- Source
- GWIS (Copernicus)
- Date
- 25 Jan 2020 – 1 Mar 2020
+− cross-check
No official record is matched to this page to compare it with.
TH · Thailand · –
Dan Chang fire, 25 January 2020 ด่านช้าง · Ban Rai, Si Sawat, Dan Chang
Out · last detection 1 Mar 2020, 19:01 UTC
The fire started on 25 January 2020 in Dan Chang, Thailand, and satellites saw it burning for 37 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 50,314 hectares from heat detections, spread across 3 municipalities.
Number 2 in Thailand in 2020, of 457.
Use this data
Compare with…
Use this data
Fire page data · version 2026-10-26matches 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 only37days
25 Jan 2020 to 1 Mar 2020: first and last day with fire on the page.
- Source
- GWIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- last detection: 1 Mar 2020, 19:01 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 only25 Jan 2020
First day with fire seen by the satellites or the perimeter.
- Source
- GWIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- 25 Jan 2020
+− cross-check
No official record is matched to this page, so the alert time and the cause are not known here.
Hotspots
satellite only2,064
VIIRS detections at 375 m. Most intense hotspot: 65 MW.
- Source
- NASA FIRMS · VIIRS (Suomi NPP)
- Date
- 25 Jan 2020 – 1 Mar 2020
+− cross-check
There is no official record to compare with. Each hotspot is a pixel detected in one satellite pass, not a separate fire.
The worst day
satellite only808MW
Total radiative power on 14 February 2020; hotspots that day: 212.
- Source
- NASA FIRMS · VIIRS (FRP)
- Date
- 14 Feb 2020
+− 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
model21.6FWI · high
Fire Weather Index (Canadian system) computed by WorldFires for the day the fire started. Consecutive days without rain before: 4.
- Source
- WorldFires calculation (Canadian FWI system)
- Date
- 25 Jan 2020, 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
model30.5°C · 44% RH
High of 30.5 °C and minimum humidity of 44% on 1 March 2020; gusts of 45 km/h on 21 February 2020.
- Source
- weather model at the fire’s grid cell
- Date
- 25 Jan 2020 – 1 Mar 2020
- 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.
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: 28 February 2020 → 1 March 2020.
-
logStart date: 26 January 2020 → 25 January 2020.
-
· reconstructed weatherWeather and FWI computed from the ERA5 reanalysis
-
· reconstructed GHSLPopulation and built-up area computed
What was saved on 26 October 2026
Every night a snapshot of what the page shows is saved. If anything changes, it appears in the list as a log entry.
- Area
- 51,181 ha
- Dates
- 25 Jan 2020 – 1 Mar 2020
- Name
- Dan Chang
- Official record
- —
Versioned permanent link
https://worldfires.org/en/fire/dan-chang-2020-01-3?v=2026-10-26A 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 dan-chang-2020-01-3.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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020-01-25 | 3 | 3 | 29.2 | 15.4 | 36 | 11.4 | 32.8 | 0 | 21.6 | alto | 1 |
| 2020-01-26 | 17 | 21 | 28.3 | 12.3 | 28 | 12.2 | 35.6 | 0 | 25.5 | alto | 1 |
| 2020-01-27 | 16 | 47 | 27.7 | 10.1 | 21 | 10.8 | 31.7 | 0 | 28.2 | alto | 1 |
| 2020-01-28 | 66 | 214 | 27.2 | 10.2 | 33 | 6.9 | 22.3 | 0 | 24.7 | alto | 1 |
| 2020-01-29 | 93 | 359 | 27.5 | 10.3 | 34 | 7.3 | 24.1 | 0 | 24.6 | alto | 1 |
| 2020-01-30 | 26 | 103 | 25.7 | 12.8 | 53 | 8.7 | 27.4 | 0 | 19 | moderado | 1 |
| 2020-01-31 | 54 | 236 | 26 | 14.6 | 50 | 7 | 24.1 | 0 | 18.1 | moderado | 1 |
| 2020-02-01 | 21 | 49 | 26.5 | 14.2 | 48 | 7.6 | 24.8 | 0 | 18.6 | moderado | 1 |
| 2020-02-02 | 23 | 84 | 27.7 | 14.2 | 48 | 7.6 | 21.2 | 0 | 18.8 | moderado | 1 |
| 2020-02-03 | 69 | 162 | 29.4 | 14.8 | 40 | 7.7 | 23.4 | 0 | 20 | moderado | 1 |
| 2020-02-04 | 67 | 134 | 29.5 | 14.3 | 39 | 8.7 | 20.2 | 0 | 21.2 | moderado | 1 |
| 2020-02-05 | 25 | 42 | 28.2 | 14.2 | 46 | 9.7 | 28.8 | 0 | 22 | alto | 1 |
| 2020-02-06 | 3 | 14 | 29.5 | 14.6 | 36 | 6.9 | 19.8 | 0 | 21.6 | alto | 1 |
| 2020-02-07 | 36 | 135 | 29.6 | 14.2 | 40 | 9.2 | 24.1 | 0 | 23.2 | alto | 1 |
| 2020-02-08 | 52 | 269 | 27.8 | 14.8 | 48 | 9.1 | 29.5 | 0 | 21.8 | alto | 1 |
| 2020-02-09 | 63 | 101 | 26.2 | 14.7 | 51 | 13.7 | 40 | 0 | 22.9 | alto | 1 |
| 2020-02-10 | 55 | 428 | 26.9 | 14.4 | 48 | 10 | 30.2 | 0 | 21 | moderado | 1 |
| 2020-02-11 | 17 | 39 | 29.2 | 15.6 | 47 | 7.8 | 23.4 | 0 | 20 | moderado | 1 |
| 2020-02-12 | 59 | 359 | 30 | 16 | 44 | 9.5 | 29.2 | 0 | 21.1 | moderado | 1 |
| 2020-02-13 | 77 | 173 | 30.2 | 16.2 | 41 | 11.6 | 33.8 | 0 | 23.4 | alto | 1 |
| 2020-02-14 | 212 | 808 | 29.3 | 14.8 | 38 | 14.7 | 42.1 | 0 | 26.5 | alto | 1 |
| 2020-02-15 | 106 | 462 | 30.3 | 12.6 | 28 | 8.9 | 24.8 | 0 | 27.4 | alto | 1 |
| 2020-02-16 | 46 | 194 | 30 | 13.1 | 32 | 8.9 | 24.8 | 0 | 27.6 | alto | 1 |
| 2020-02-17 | 82 | 333 | 29.2 | 12.1 | 42 | 10.6 | 33.8 | 0 | 26.9 | alto | 1 |
| 2020-02-18 | 34 | 156 | 24.8 | 16.6 | 53 | 11.8 | 35.6 | 0 | 22.2 | alto | 1 |
| 2020-02-19 | 70 | 197 | 26.9 | 14.9 | 47 | 10.5 | 32.4 | 0 | 21.7 | alto | 1 |
| 2020-02-20 | 86 | 220 | 27.8 | 15.4 | 43 | 11.9 | 34.9 | 0 | 22.7 | alto | 1 |
| 2020-02-21 | 57 | 151 | 27.4 | 14.5 | 37 | 15.5 | 45.4 | 0 | 27.1 | alto | 1 |
| 2020-02-22 | 49 | 182 | 26.8 | 14.8 | 43 | 15.5 | 45.4 | 0 | 27.3 | alto | 1 |
| 2020-02-23 | 70 | 380 | 27 | 14.7 | 43 | 12.6 | 37.4 | 0 | 25.6 | alto | 1 |
| 2020-02-24 | 101 | 284 | 28.4 | 15.3 | 38 | 9 | 28.8 | 0 | 23.5 | alto | 1 |
| 2020-02-25 | 177 | 504 | 29.1 | 14.4 | 37 | 8.9 | 26.3 | 0 | 24.1 | alto | 1 |
| 2020-02-26 | 105 | 363 | 29.1 | 15.5 | 40 | 8.6 | 26.3 | 0 | 24.1 | alto | 1 |
| 2020-02-27 | 12 | 32 | 28.5 | 15.7 | 46 | 9.1 | 26.6 | 0 | 24.3 | alto | 1 |
| 2020-02-28 | 12 | 100 | 29.1 | 16.3 | 44 | 8.7 | 27.4 | 0 | 24.2 | alto | 1 |
| 2020-02-29 | 1 | 10 | 28.5 | 17.9 | 53 | 6.9 | 25.2 | 0.7 | 16.2 | moderado | 1 |
| 2020-03-01 | 2 | 6 | 30.5 | 18.7 | 44 | 7.3 | 18.7 | 0 | 20.2 | moderado | 1 |
| 2020-03-02 | 0 | 0 | 30 | 18.6 | 45 | 6.9 | 23 | 0 | 20.4 | moderado | 0 |
| 2020-03-03 | 0 | 0 | 30.6 | 18.4 | 43 | 7.6 | 22 | 0.1 | 21.7 | alto | 0 |
| 2020-03-04 | 0 | 0 | 30.5 | 18.6 | 47 | 6.1 | 27.4 | 0.8 | 16.7 | moderado | 0 |
| 2020-03-05 | 0 | 0 | 31.1 | 18 | 45 | 8.4 | 28.8 | 0.3 | 21.1 | moderado | 0 |
| 2020-03-06 | 0 | 0 | 30.5 | 19.4 | 46 | 6 | 22 | 0.2 | 20 | moderado | 0 |
| 2020-03-07 | 0 | 0 | 32 | 17.2 | 36 | 6.1 | 21.6 | 0 | 23.8 | alto | 0 |
| 2020-03-08 | 0 | 0 | 32.9 | 16.1 | 25 | 8.8 | 32.8 | 0 | 31.9 | alto | 0 |
| 2020-03-09 | 0 | 0 | 33.7 | 15.7 | 30 | 8.6 | 24.1 | 0 | 31.9 | alto | 0 |
| 2020-03-10 | 0 | 0 | 33 | 16 | 29 | 8 | 26.6 | 0 | 31.7 | alto | 0 |
| 2020-03-11 | 0 | 0 | 32.9 | 16.5 | 32 | 9.7 | 27.7 | 0 | 33.2 | 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
- 50,314ha
- GWIS perimeter (Copernicus)
- Duration
- 37days
- 25 Jan 2020 – 1 Mar 2020
- Municipalities hit
- 3
- districts
- Started on
- 25 Jan
- 2020
- Heat detections
- 2,064
- in a single hotspot: 65 MW
- Danger at start
- 22
- High · FWI index
- Average daily power
- 199MW
- detected power per day, on average
Where it burned
HOTSPOTS BY DAY
25 Jan1 Mar
1 Mar 2020
How it evolved, day by day
25 Jan
2 Feb
14 Feb
26 Feb
Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.
The weather it burned in
30°high
45km/h · peak gust
21%lowest humidity
It had gone 4 days without rain (1 mm or more) when it started.
This area had burned before
88% of the perimeter overlaps earlier fires recorded since 2016: 35,687 ha in 2016, 5,316 ha in 2017, 1,010 ha in 2018, 30,902 ha in 2019. Part of it burned more than once, so the yearly figures add up to more than the 44,408 ha that had burned before.
- 18,108 ha Ban Rai fire, February 2019 64,257 ha in total; the hectares shown are those it shares with this fire
- 2,772 ha Ban Rai fire, February 2019 2,995 ha in total; the hectares shown are those it shares with this fire
- 1,685 ha Ban Rai fire, March 2017 1,831 ha in total; the hectares shown are those it shares with this fire
- 1,136 ha Ban Rai fire, March 2017 1,178 ha in total; the hectares shown are those it shares with this fire
- 971 ha Ban Rai fire, March 2019 1,119 ha in total; the hectares shown are those it shares with this fire
- 481 ha Ban Rai fire, March 2017 1,233 ha in total; the hectares shown are those it shares with this fire
- 46 ha Ban Rai fire, February 2016 3,513 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).
Bangkok boundary: geoBoundaries · OpenStreetMap, Wambacher · © OpenStreetMap contributors (ODbL 1.0).
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).
This compares size, not location: both shapes are at the same scale, north up, centred on each other.
What happened to each town
-
Ban Rai บ้านไร่49,162 ha reached on 27 Jan15 %
-
Si Sawat ศรีสวัสดิ์2,244 ha reached on 25 Jan0.7 %
-
43 ha reached on 25 Jan0.0 %
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 2020Built-up area0.36 ha
Residents< 20
Inside the perimeter there were about 0.36 hectares of built-up land and almost nobody lived there (GHSL 2020, 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.
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) |
|---|---|---|---|---|---|
| 25 Jan | 29.2 °C | 36 % | 33 km/h | 0.0 mm | High 22 |
| 26 Jan | 28.3 °C | 28 % | 36 km/h | 0.0 mm | High 26 |
| 27 Jan | 27.7 °C | 21 % | 32 km/h | 0.0 mm | High 28 |
| 28 Jan | 27.2 °C | 33 % | 22 km/h | 0.0 mm | High 25 |
| 29 Jan | 27.5 °C | 34 % | 24 km/h | 0.0 mm | High 25 |
| 30 Jan | 25.7 °C | 53 % | 27 km/h | 0.0 mm | Moderate 19 |
| 31 Jan | 26.0 °C | 50 % | 24 km/h | 0.0 mm | Moderate 18 |
| 1 Feb | 26.5 °C | 48 % | 25 km/h | 0.0 mm | Moderate 19 |
| 2 Feb | 27.7 °C | 48 % | 21 km/h | 0.0 mm | Moderate 19 |
| 3 Feb | 29.4 °C | 40 % | 23 km/h | 0.0 mm | Moderate 20 |
| 4 Feb | 29.5 °C | 39 % | 20 km/h | 0.0 mm | Moderate 21 |
| 5 Feb | 28.2 °C | 46 % | 29 km/h | 0.0 mm | High 22 |
| 6 Feb | 29.5 °C | 36 % | 20 km/h | 0.0 mm | High 22 |
| 7 Feb | 29.6 °C | 40 % | 24 km/h | 0.0 mm | High 23 |
| 8 Feb | 27.8 °C | 48 % | 30 km/h | 0.0 mm | High 22 |
| 9 Feb | 26.2 °C | 51 % | 40 km/h | 0.0 mm | High 23 |
| 10 Feb | 26.9 °C | 48 % | 30 km/h | 0.0 mm | Moderate 21 |
| 11 Feb | 29.2 °C | 47 % | 23 km/h | 0.0 mm | Moderate 20 |
| 12 Feb | 30.0 °C | 44 % | 29 km/h | 0.0 mm | Moderate 21 |
| 13 Feb | 30.2 °C | 41 % | 34 km/h | 0.0 mm | High 23 |
| 14 Feb | 29.3 °C | 38 % | 42 km/h | 0.0 mm | High 26 |
| 15 Feb | 30.3 °C | 28 % | 25 km/h | 0.0 mm | High 27 |
| 16 Feb | 30.0 °C | 32 % | 25 km/h | 0.0 mm | High 28 |
| 17 Feb | 29.2 °C | 42 % | 34 km/h | 0.0 mm | High 27 |
| 18 Feb | 24.8 °C | 53 % | 36 km/h | 0.0 mm | High 22 |
| 19 Feb | 26.9 °C | 47 % | 32 km/h | 0.0 mm | High 22 |
| 20 Feb | 27.8 °C | 43 % | 35 km/h | 0.0 mm | High 23 |
| 21 Feb | 27.4 °C | 37 % | 45 km/h | 0.0 mm | High 27 |
| 22 Feb | 26.8 °C | 43 % | 45 km/h | 0.0 mm | High 27 |
| 23 Feb | 27.0 °C | 43 % | 37 km/h | 0.0 mm | High 26 |
| 24 Feb | 28.4 °C | 38 % | 29 km/h | 0.0 mm | High 24 |
| 25 Feb | 29.1 °C | 37 % | 26 km/h | 0.0 mm | High 24 |
| 26 Feb | 29.1 °C | 40 % | 26 km/h | 0.0 mm | High 24 |
| 27 Feb | 28.5 °C | 46 % | 27 km/h | 0.0 mm | High 24 |
| 28 Feb | 29.1 °C | 44 % | 27 km/h | 0.0 mm | High 24 |
| 29 Feb | 28.5 °C | 53 % | 25 km/h | 0.7 mm | Moderate 16 |
| 1 Mar | 30.5 °C | 44 % | 19 km/h | 0.0 mm | Moderate 20 |
| 2 Mar after | 30.0 °C | 45 % | 23 km/h | 0.0 mm | Moderate 20 |
| 3 Mar after | 30.6 °C | 43 % | 22 km/h | 0.1 mm | High 22 |
| 4 Mar after | 30.5 °C | 47 % | 27 km/h | 0.8 mm | Moderate 17 |
| 5 Mar after | 31.1 °C | 45 % | 29 km/h | 0.3 mm | Moderate 21 |
| 6 Mar after | 30.5 °C | 46 % | 22 km/h | 0.2 mm | Moderate 20 |
| 7 Mar after | 32.0 °C | 36 % | 22 km/h | 0.0 mm | High 24 |
| 8 Mar after | 32.9 °C | 25 % | 33 km/h | 0.0 mm | High 32 |
| 9 Mar after | 33.7 °C | 30 % | 24 km/h | 0.0 mm | High 32 |
| 10 Mar after | 33.0 °C | 29 % | 27 km/h | 0.0 mm | High 32 |
| 11 Mar after | 32.9 °C | 32 % | 28 km/h | 0.0 mm | High 33 |
Its twins: fires that started in the same weather
It started with an FWI of 21.6, a minimum humidity of 36% and 4 days without rain. Fires in the area that started in weather like this since 2016: 24.
FWI at the start
21.6
Minimum humidity
36 %
Days without rain
4
this fire
chosen twins
rest of the area
Almost identicalSimilar
Outlines of the closest twins
This fire · Dan Chang fire, 25 January 2020
50,314 ha
37 days
FWI 21.6
Min. humidity 36 %
Si Sawat fire, February 2021
1,308 ha
8 days
FWI 21.6
Min. humidity 35 %
6 km away, in 2021
First rain (1 mm or more) after it ended: 5.8 mm on 3 Mar.
Thong Pha Phum fire, March 2023
1,494 ha
15 days
FWI 20.6
Min. humidity 36 %
52 km away, in 2023
First rain (1 mm or more) after it ended: 1.4 mm on 8 Apr.
Si Sawat fire, February 2024
1,539 ha
12 days
FWI 23.1
Min. humidity 36 %
49 km away, in 2024
First rain (1 mm or more) after it ended: none in the following ten days.
Si Sawat fire, February 2021
1,107 ha
15 days
FWI 22.7
Min. humidity 37 %
9 km away, in 2021
First rain (1 mm or more) after it ended: 5.8 mm on 3 Mar.
Ban Rai fire, February 2021
2,551 ha
10 days
FWI 22.4
Min. humidity 37 %
19 km away, in 2021
First rain (1 mm or more) after it ended: 2.9 mm on 7 Mar.
What happened to them
- 10 days
- median duration
- 1,530 ha
- median area
- 100 %
- went past 1,000 ha
- 3.0 mm
- rain at the end (median; 18 of 24 had it)
It was 32.9 times larger than the median of its twins and lasted 37 days, against 10 days.
None of its 24 twins burned more. The weather on the first day does not explain everything: the wind in the following days, the fuel and the firefighting also count. In 6 of 24, 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 3.0 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
45km/h · max. gust
It was considered over on 1 Mar, and not even 1 mm fell in the following ten days: it went out without rain. Twins with rain when they ended: 18 of 24, with a median of 3.0 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.
Before and after, from space
Drag the line to compare the same ground before the fire and after it.
↔
Before · 18 Jan 2020
After · 8 Mar 2020
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.
Detections table · 2,064Every 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
- 25,467 haDan Chang ด่านช้าง2 April 2026 · 22 days · 15 km away
- 18,013 haBan Rai บ้านไร่March 2026 · 26 days · 20 km away
- 64,257 haBan Rai บ้านไร่12 February 2019 · 40 days · 27 km away
- 81,712 haBan Rai บ้านไร่3 February 2016 · 52 days · 28 km away
- 36,088 haBan Rai บ้านไร่1 March 2016 · 25 days · 28 km away
- 17,328 haSi Sawat ศรีสวัสดิ์31 March 2026 · 26 days · 29 km away
Frequently asked questions
- How long did the Dan Chang fire last?
- According to the heat detections seen by satellite inside the perimeter, it burned from 25 January 2020 to 1 March 2020 (37 days). The perimeter dates it from 26 January 2020 to 28 February 2020.
- How much area did it burn?
- The perimeter GWIS (Copernicus) rebuilt from heat detections is 50,314 hectares (503.1 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire entered 3 municipalities: Ban Rai (49,162 ha, 15 %); Si Sawat (2,244 ha, 0.7 %); Dan Chang (43 ha, 0.0 %).
- What was the weather like?
- During the fire the temperature reached 30.5 °C, humidity dropped to 21 % and gusts hit 45 km/h. The fire danger index (FWI) reached 28, class High.
- Where does this data come from?
- From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Thailand (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: 24. Their median duration was 10 days and their median area 1,530 ha; 100 % went past 1,000 ha. None of its 24 twins burned more. The weather on the first day does not explain everything: the wind in the following days, the fuel and the firefighting also count. In 6 of 24, 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 3.0 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.
Emergency number: 199 · 191 · Emergency number and official warnings
Satellite cross-check
History of this page · 2 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
- Last day with fire: 28 February 2020 → 1 March 2020.
- Start date: 26 January 2020 → 25 January 2020.
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; 8 polygons grouped in this page.
- Dates adjusted with the VIIRS detections inside the perimeter, which said 26 January 2020 to 28 February 2020. 2,064 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 2020, 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 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.