How long did the Hot fire last?

GWIS (Copernicus) dates it between 1 March 2017 and 10 March 2017: 10 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 2,222 hectares (22.2 km²). It is an estimate: official national figures may differ.

Which municipalities burned?

The fire only entered Hot (2,234 ha, 1.5 %).

What was the weather like?

During the fire the temperature reached 35.5 °C, humidity dropped to 22 % and gusts hit 43 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 Thailand (geoBoundaries). It is not an official report.

TH · Thailand · 2017-03-01 → 2017-03-10

Hot fire, 1 March 2017 ฮอด · Hot

Out · last detection 10 Mar 2017, 18:41 UTC

The fire started on 1 March 2017 in Hot, Thailand, and satellites saw it burning for 10 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 2,222 hectares from heat detections, spread across a single municipality.

It is the 122th largest in Chiang Mai Province since 2016 (of 399 with a page). Number 32 in Thailand in 2017, of 155.

The power measured by the satellite is low (9.7 MW in the strongest hotspot), more typical of grass or stubble burning, or a slow surface fire, than of a large crown fire.

Compare with…

Suggestions: Hot · 2026 Hot · 2026 Hot · 2026 Chom Thong · 2026

Burnt area: 2,222ha; GWIS perimeter (Copernicus)
Duration: 10days; 1 Mar 2017 – 10 Mar 2017
Municipalities hit: 1; districts
Started on: 1 Mar; 2017
Heat detections: 90; in a single hotspot: 10 MW
Danger at start: 31; High · FWI index
Average daily power: 24MW; detected power per day, on average

HOTSPOTS BY DAY 1 Mar10 Mar

Play back 10 Mar 2017

How it evolved, day by day

1 Mar 3 Mar 5 Mar 7 Mar 8 Mar 9 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

36°high

43km/h · peak gust

22%lowest humidity

It had gone 43 days without rain (1 mm or more) when it started.

This area had burned before

21% of the perimeter overlaps earlier fires recorded since 2016: 476 ha in 2016.

How big is it?

It burned the equivalent of 1.4% of the area of London (22 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

Hot ฮอด where it started

2,234 ha

1.5 %

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)
25 Feb	35.5 °C	23 %	38 km/h	0.0 mm	High 31
26 Feb	35.0 °C	22 %	32 km/h	0.0 mm	High 30
27 Feb	35.2 °C	30 %	25 km/h	0.0 mm	High 28
28 Feb	35.1 °C	29 %	19 km/h	0.0 mm	High 27
1 Mar	35.0 °C	32 %	18 km/h	0.0 mm	High 27
2 Mar	33.5 °C	36 %	27 km/h	0.0 mm	High 25
3 Mar	34.7 °C	31 %	26 km/h	0.0 mm	High 25
4 Mar	34.5 °C	31 %	28 km/h	0.0 mm	High 27
5 Mar	34.6 °C	27 %	27 km/h	0.0 mm	High 28
6 Mar	35.3 °C	28 %	25 km/h	0.0 mm	High 28
7 Mar	34.8 °C	26 %	28 km/h	0.0 mm	High 30
8 Mar	34.9 °C	33 %	28 km/h	0.0 mm	High 30
9 Mar	33.7 °C	33 %	43 km/h	0.0 mm	High 34
10 Mar	33.7 °C	38 %	40 km/h	0.1 mm	High 31
11 Mar after	34.7 °C	37 %	36 km/h	0.0 mm	High 31
12 Mar after	35.5 °C	31 %	45 km/h	0.0 mm	High 34
13 Mar after	35.3 °C	27 %	40 km/h	0.0 mm	High 33
14 Mar after	35.6 °C	31 %	32 km/h	0.0 mm	High 32
15 Mar after	35.8 °C	21 %	36 km/h	0.0 mm	High 37
16 Mar after	36.3 °C	27 %	41 km/h	0.0 mm	Very high 40
17 Mar after	35.1 °C	30 %	41 km/h	0.0 mm	Very high 38
18 Mar after	35.1 °C	29 %	40 km/h	0.0 mm	Very high 39
19 Mar after	35.2 °C	27 %	37 km/h	0.0 mm	Very high 38
20 Mar after	35.4 °C	28 %	35 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 Feb 2017

After · 17 Mar 2017

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 · 90Every 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 Hot fire last?: GWIS (Copernicus) dates it between 1 March 2017 and 10 March 2017: 10 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 2,222 hectares (22.2 km²). It is an estimate: official national figures may differ.
Which municipalities burned?: The fire only entered Hot (2,234 ha, 1.5 %).
What was the weather like?: During the fire the temperature reached 35.5 °C, humidity dropped to 22 % and gusts hit 43 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 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 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.

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.
Dates from the perimeter: the VIIRS detections inside it did not change them. 90 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.

Where it burned