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Dan Sai fire, 20 March 2016 Thailand

Out · last measured on 25 Mar 2016

The fire started on 20 March 2016 in Dan Sai, Thailand, and satellites saw it burning for 6 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 2,609 hectares from heat detections, spread across a single municipality.

It is the 45th largest in Loei Province since 2016 (of 192 with a page). Number 103 in Thailand in 2016, of 527.

We have the GWIS perimeter for this fire, but the VIIRS sensors did not capture it in enough detail: no day-by-day evolution, but the split by municipality is there.

Burnt area
2,609ha
GWIS perimeter (Copernicus)
Duration
6days
20 Mar 2016 – 25 Mar 2016
Municipalities hit
0
districts
Started on
20 Mar
2016
Danger at start
36
High · FWI index

Where it burned

The weather it burned in

36°high
46km/h · peak gust
26%lowest humidity

It had gone 51 days without rain (1 mm or more) when it started. Rain came after the fire: 4.1 mm on 31 Mar.

This area had burned before

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

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 35.0 °C 30 % 37 km/h 0.0 mm High 36
21 Mar 35.2 °C 31 % 38 km/h 0.0 mm High 36
22 Mar 35.2 °C 26 % 37 km/h 0.0 mm High 37
23 Mar 35.5 °C 26 % 32 km/h 0.0 mm High 35
24 Mar 35.6 °C 26 % 30 km/h 0.0 mm High 33
25 Mar 27.1 °C 45 % 46 km/h 0.0 mm High 30
26 Mar after 29.4 °C 39 % 25 km/h 0.0 mm High 25
27 Mar after 27.8 °C 44 % 36 km/h 0.0 mm High 27
28 Mar after 29.1 °C 41 % 31 km/h 0.0 mm High 25
29 Mar after 29.8 °C 42 % 26 km/h 0.0 mm High 24
30 Mar after 31.8 °C 42 % 28 km/h 0.5 mm High 23
31 Mar after 32.2 °C 41 % 27 km/h 4.1 mm Low 6

Before and after, from space

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

Before · 13 Mar 2016
After · 1 Apr 2016

If the day is cloudy, change the date: each satellite passes once a day. In false colour the burnt ground looks brown or red.

Other fires nearby

All fires in Thailand ›

Frequently asked questions

How long did the Dan Sai fire last?
GWIS (Copernicus) dates it between 20 March 2016 and 25 March 2016: 6 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 2,609 hectares (26.1 km²). It is an estimate: official national figures may differ.
What was the weather like?
During the fire the temperature reached 35.6 °C, humidity dropped to 26 % and gusts hit 46 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

Satellite cross-check

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?

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.

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.