Umphang fire, 13 March 2018 Thailand
The fire started on 13 March 2018 in Umphang, Thailand, and satellites saw it burning for 6 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 1,962 hectares from heat detections, spread across a single municipality.
It is the 165th largest in Tak Province since 2016 (of 499 with a page). Number 52 in Thailand in 2018, of 144.
- Burnt area
- 1,962ha
- GWIS perimeter (Copernicus)
- Duration
- 6days
- 13 Mar 2018 – 18 Mar 2018
- Municipalities hit
- 0
- districts
- Started on
- 13 Mar
- 2018
- Heat detections
- 1
- in a single hotspot: 7 MW
- Danger at start
- 22
- High · FWI index
Where it burned
The weather it burned in
It had gone 7 days without rain (1 mm or more) when it started. Rain came after the fire: 5.8 mm on 23 Mar.
This area had burned before
83% of the perimeter overlaps earlier fires recorded since 2016: 1,588 ha in 2016, 972 ha in 2017. Part of it burned more than once, so the yearly figures add up to more than the 1,634 ha that had burned before.
- 585 ha Phop Phra fire, March 2017 16,349 ha in total; the hectares shown are those it shares with this fire
- 559 ha Umphang fire, March 2016 16,730 ha in total; the hectares shown are those it shares with this fire
- 319 ha Umphang fire, April 2016 1,591 ha in total; the hectares shown are those it shares with this fire
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) |
|---|---|---|---|---|---|
| 6 Mar | 34.3 °C | 35 % | 23 km/h | 0.0 mm | High 22 |
| 7 Mar | 34.2 °C | 38 % | 26 km/h | 0.0 mm | High 22 |
| 8 Mar | 33.7 °C | 38 % | 20 km/h | 0.0 mm | Moderate 20 |
| 9 Mar | 28.0 °C | 58 % | 38 km/h | 0.0 mm | Moderate 16 |
| 10 Mar | 29.5 °C | 52 % | 28 km/h | 0.0 mm | Moderate 15 |
| 11 Mar | 30.1 °C | 47 % | 19 km/h | 0.2 mm | Moderate 14 |
| 12 Mar | 30.4 °C | 51 % | 30 km/h | 0.8 mm | Moderate 13 |
| 13 Mar | 32.1 °C | 37 % | 36 km/h | 0.0 mm | Moderate 20 |
| 14 Mar | 31.5 °C | 35 % | 40 km/h | 0.0 mm | High 24 |
| 15 Mar | 32.0 °C | 35 % | 38 km/h | 0.0 mm | High 23 |
| 16 Mar | 32.8 °C | 36 % | 19 km/h | 0.0 mm | Moderate 20 |
| 17 Mar | 33.6 °C | 32 % | 29 km/h | 0.0 mm | High 24 |
| 18 Mar | 33.3 °C | 36 % | 31 km/h | 0.0 mm | High 25 |
| 19 Mar after | 33.0 °C | 33 % | 39 km/h | 0.0 mm | High 28 |
| 20 Mar after | 33.9 °C | 32 % | 36 km/h | 0.0 mm | High 27 |
| 21 Mar after | 33.7 °C | 33 % | 36 km/h | 0.0 mm | High 27 |
| 22 Mar after | 33.1 °C | 39 % | 21 km/h | 0.3 mm | High 24 |
| 23 Mar after | 29.8 °C | 58 % | 23 km/h | 5.8 mm | Very low 2 |
Before and after, from space
Drag the line to compare the same ground before the fire and after it.
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 · 1Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
Frequently asked questions
- How long did the Umphang fire last?
- GWIS (Copernicus) dates it between 13 March 2018 and 18 March 2018: 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 1,962 hectares (19.6 km²). It is an estimate: official national figures may differ.
- What was the weather like?
- During the fire the temperature reached 34.3 °C, humidity dropped to 32 % and gusts hit 40 km/h. The fire danger index (FWI) reached 25, 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
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.