How long did the Na Noi fire last?

According to the heat detections seen by satellite inside the perimeter, it burned from 16 March 2016 to 28 March 2016 (13 days). The perimeter dates it from 20 March 2016 to 26 March 2016.

How much area did it burn?

The perimeter GWIS (Copernicus) rebuilt from heat detections is 2,442 hectares (24.4 km²). It is an estimate: official national figures may differ.

Which municipalities burned?

The fire only entered Na Noi (2,454 ha, 2.0 %).

What was the weather like?

During the fire the temperature reached 36.1 °C, humidity dropped to 25 % and gusts hit 43 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 · 2016-03-16 → 2016-03-28

Na Noi fire, 16 March 2016 นาน้อย · Na Noi

Out · last detection 28 Mar 2016, 06:18 UTC

The fire started on 16 March 2016 in Na Noi, Thailand, and satellites saw it burning for 13 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 2,442 hectares from heat detections, spread across a single municipality.

It is the 41th largest in Nan Province since 2016 (of 189 with a page). Number 81 in Thailand in 2016, of 387.

The power measured by the satellite is low (21.0 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: Na Noi · 2026 Wiang Sa · 2026 Tha Pla · 2026 Na Noi · 2026

Burnt area: 2,442ha; GWIS perimeter (Copernicus)
Duration: 13days; 16 Mar 2016 – 28 Mar 2016
Municipalities hit: 1; districts
Started on: 16 Mar; 2016
Heat detections: 88; in a single hotspot: 21 MW
Danger at start: 30; High · FWI index
Average daily power: 38MW; detected power per day, on average

HOTSPOTS BY DAY 16 Mar28 Mar

Play back 28 Mar 2016

How it evolved, day by day

16 Mar 20 Mar 22 Mar 23 Mar 24 Mar 26 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

25%lowest humidity

It had gone 42 days without rain (1 mm or more) when it started. Rain came after the fire: 2.7 mm on 2 Apr.

This area had burned before

No earlier perimeters overlap this fire since 2016, when the satellite record begins.

How big is it?

It burned the equivalent of 1.5% of the area of London (24 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

Na Noi นาน้อย where it started

2,454 ha reached on 16 Mar

2.0 %

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 2015

Built-up area< 0.1 ha

Residents< 20

Inside the perimeter there was no noticeable built-up land and almost nobody lived there (GHSL 2015, 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)
11 Mar	34.4 °C	33 %	35 km/h	0.0 mm	High 30
12 Mar	32.4 °C	40 %	38 km/h	0.0 mm	High 28
13 Mar	34.4 °C	34 %	31 km/h	0.0 mm	High 27
14 Mar	36.1 °C	30 %	27 km/h	0.0 mm	High 28
15 Mar	35.9 °C	28 %	35 km/h	0.0 mm	High 31
16 Mar	35.6 °C	26 %	39 km/h	0.0 mm	High 34
17 Mar	35.8 °C	25 %	37 km/h	0.0 mm	High 34
18 Mar	35.9 °C	26 %	37 km/h	0.0 mm	High 35
19 Mar	35.1 °C	29 %	36 km/h	0.0 mm	High 35
20 Mar	35.1 °C	31 %	35 km/h	0.3 mm	High 35
21 Mar	35.5 °C	31 %	36 km/h	0.0 mm	High 35
22 Mar	35.7 °C	26 %	37 km/h	0.0 mm	High 37
23 Mar	35.7 °C	28 %	31 km/h	0.0 mm	High 35
24 Mar	35.9 °C	25 %	26 km/h	0.0 mm	High 34
25 Mar	30.5 °C	39 %	43 km/h	0.0 mm	High 34
26 Mar	32.1 °C	34 %	34 km/h	0.0 mm	High 32
27 Mar	29.5 °C	44 %	38 km/h	0.0 mm	High 28
28 Mar	32.5 °C	32 %	33 km/h	0.0 mm	High 29
29 Mar after	32.3 °C	37 %	31 km/h	0.2 mm	High 28
30 Mar after	32.7 °C	42 %	27 km/h	0.0 mm	High 26
31 Mar after	33.8 °C	37 %	27 km/h	0.1 mm	High 28
1 Apr after	34.3 °C	31 %	34 km/h	0.1 mm	High 32
2 Apr after	33.4 °C	30 %	36 km/h	2.7 mm	Moderate 16

Before and after, from space

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

↔

Before · 9 Mar 2016

After · 4 Apr 2016

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 · 88Every 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 Na Noi fire last?: According to the heat detections seen by satellite inside the perimeter, it burned from 16 March 2016 to 28 March 2016 (13 days). The perimeter dates it from 20 March 2016 to 26 March 2016.
How much area did it burn?: The perimeter GWIS (Copernicus) rebuilt from heat detections is 2,442 hectares (24.4 km²). It is an estimate: official national figures may differ.
Which municipalities burned?: The fire only entered Na Noi (2,454 ha, 2.0 %).
What was the weather like?: During the fire the temperature reached 36.1 °C, humidity dropped to 25 % and gusts hit 43 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 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 adjusted with the VIIRS detections inside the perimeter, which said 20 March 2016 to 26 March 2016. 88 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 2015, 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