How long did the Mae Ramat fire last?

According to the heat detections seen by satellite inside the perimeter, it burned from 29 March 2019 to 14 April 2019 (17 days). The perimeter dates it from 29 March 2019 to 9 April 2019.

How much area did it burn?

The perimeter GWIS (Copernicus) rebuilt from heat detections is 2,491 hectares (24.9 km²). It is an estimate: official national figures may differ.

Which municipalities burned?

The fire only entered Mae Ramat (2,506 ha, 1.6 %).

What was the weather like?

During the fire the temperature reached 37.1 °C, humidity dropped to 24 % and gusts hit 41 km/h. The fire danger index (FWI) reached 37, 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.

TH · Thailand · 2019-03-29 → 2019-04-14

Mae Ramat fire, 29 March 2019 แม่ระมาด · Mae Ramat

Out · last detection 14 Apr 2019, 07:07 UTC

The fire started on 29 March 2019 in Mae Ramat, Thailand, and satellites saw it burning for 17 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 2,491 hectares from heat detections, spread across a single municipality.

It is the 77th largest in Tak Province since 2016 (of 329 with a page). Number 72 in Thailand in 2019, of 385.

Compare with…

Suggestions: Mae Ramat · 2018 Tha Song Yang · 2018 Mae Ramat · 2017 Mae Ramat · 2018

Burnt area: 2,491ha; GWIS perimeter (Copernicus)
Duration: 17days; 29 Mar 2019 – 14 Apr 2019
Municipalities hit: 1; districts
Started on: 29 Mar; 2019
Heat detections: 78; in a single hotspot: 52 MW
Danger at start: 28; High · FWI index
Average daily power: 47MW; detected power per day, on average

HOTSPOTS BY DAY 29 Mar14 Apr

Play back 14 Apr 2019

How it evolved, day by day

29 Mar 30 Mar 31 Mar 3 Apr 5 Apr 7 Apr 9 Apr 14 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

37°high

41km/h · peak gust

24%lowest humidity

It had gone 0 days without rain (1 mm or more) when it started.

This area had burned before

98% of the perimeter overlaps earlier fires recorded since 2016: 2,140 ha in 2016, 1,542 ha in 2017, 2,503 ha in 2018. Part of it burned more than once, so the yearly figures add up to more than the 2,431 ha that had burned before.

How big is it?

It burned the equivalent of 1.6% of the area of London (25 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

Mae Ramat แม่ระมาด where it started

2,506 ha reached on 29 Mar

1.6 %

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 2020

Built-up area< 0.1 ha

Residents< 20

Inside the perimeter there was no noticeable 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)
20 Mar	34.8 °C	34 %	41 km/h	0.2 mm	High 28
21 Mar	35.3 °C	27 %	38 km/h	0.0 mm	High 33
22 Mar	35.4 °C	32 %	29 km/h	0.0 mm	High 32
23 Mar	35.8 °C	33 %	22 km/h	0.0 mm	High 31
24 Mar	36.3 °C	29 %	37 km/h	0.0 mm	High 34
25 Mar	37.1 °C	30 %	24 km/h	0.0 mm	High 31
26 Mar	35.9 °C	36 %	26 km/h	0.0 mm	High 31
27 Mar	33.1 °C	47 %	32 km/h	0.3 mm	High 27
28 Mar	33.8 °C	46 %	40 km/h	0.0 mm	High 29
29 Mar	35.4 °C	32 %	31 km/h	0.0 mm	High 30
30 Mar	35.7 °C	33 %	31 km/h	0.0 mm	High 31
31 Mar	35.5 °C	25 %	39 km/h	0.0 mm	High 36
1 Apr	36.1 °C	24 %	37 km/h	0.0 mm	High 37
2 Apr	36.4 °C	29 %	33 km/h	0.0 mm	High 36
3 Apr	36.4 °C	28 %	32 km/h	0.0 mm	High 36
4 Apr	35.8 °C	35 %	27 km/h	0.2 mm	High 33
5 Apr	35.9 °C	34 %	25 km/h	0.0 mm	High 34
6 Apr	36.3 °C	32 %	30 km/h	0.0 mm	High 35
7 Apr	36.5 °C	29 %	37 km/h	0.0 mm	High 37
8 Apr	36.6 °C	29 %	35 km/h	0.0 mm	High 36
9 Apr	36.9 °C	32 %	34 km/h	0.0 mm	High 36
10 Apr	37.2 °C	28 %	37 km/h	0.0 mm	High 38
11 Apr	37.3 °C	30 %	36 km/h	0.0 mm	High 37
12 Apr	37.1 °C	34 %	37 km/h	0.1 mm	High 38
13 Apr	37.4 °C	32 %	41 km/h	0.0 mm	Very high 39
14 Apr	37.3 °C	33 %	41 km/h	0.0 mm	Very high 39
15 Apr after	37.4 °C	36 %	37 km/h	0.0 mm	High 36
16 Apr after	38.5 °C	31 %	36 km/h	0.0 mm	High 36
17 Apr after	38.2 °C	33 %	40 km/h	0.3 mm	High 36
18 Apr after	38.3 °C	34 %	38 km/h	0.0 mm	High 38
19 Apr after	37.5 °C	35 %	45 km/h	0.0 mm	Very high 38

Before and after, from space

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

↔

Before · 22 Mar 2019

After · 21 Apr 2019

Before After

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 · 78Every 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

All fires in Thailand ›

Frequently asked questions

How long did the Mae Ramat fire last?: According to the heat detections seen by satellite inside the perimeter, it burned from 29 March 2019 to 14 April 2019 (17 days). The perimeter dates it from 29 March 2019 to 9 April 2019.
How much area did it burn?: The perimeter GWIS (Copernicus) rebuilt from heat detections is 2,491 hectares (24.9 km²). It is an estimate: official national figures may differ.
Which municipalities burned?: The fire only entered Mae Ramat (2,506 ha, 1.6 %).
What was the weather like?: During the fire the temperature reached 37.1 °C, humidity dropped to 24 % and gusts hit 41 km/h. The fire danger index (FWI) reached 37, 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.

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

NASA FIRMS ↗
GWIS · Copernicus ↗

History of this page · 1 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.

26 October 2026 Last day with fire: 9 April 2019 → 14 April 2019.

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.

Report an error

What do you think is wrong?

Dates or duration Place or towns Burned area Name It was not a wildfire Same fire as another page Something else

What really happened?

Your connection to the fire (optional) Email (optional)

We will only use your email to reply about this report. Privacy. This is not an emergency service: if there is a fire now, call 199 · 191.

How we know this

Perimeter: GWIS (Copernicus), rebuilt from heat detections rather than mapped on imagery; 2 polygons grouped in this page.
Dates adjusted with the VIIRS detections inside the perimeter, which said 29 March 2019 to 9 April 2019. 78 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.

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.

Where it burned