Posušje fire, 16 August 2017 Mostar, Posušje
The fire started on 16 August 2017 in Posušje, Bosnia & Herzegovina, and satellites saw it burning for 6 days. Copernicus mapped a burnt perimeter of 2,423 hectares from satellite imagery, spread across 2 municipalities.
It is the 21th largest in Federation of Bosnia and Herzegovina since 2016 (of 520 with a page). Number 7 in Bosnia & Herzegovina in 2017, of 102.
- Burnt area
- 2,423ha
- Copernicus perimeter
- Duration
- 6days
- 16 Aug 2017 – 21 Aug 2017
- Municipalities hit
- 2
- municipalities
- Started on
- 16 Aug
- 2017
- Heat detections
- 495
- in a single hotspot: 160 MW
- Danger at start
- 20
- Moderate · FWI index
- Energy released
- 1.7GW
- sum of detected power
Where it burned
How it evolved, day by day
Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.
The weather it burned in
It had gone 3 days without rain (1 mm or more) when it started. Rain came after the fire: 1.5 mm on 28 Aug.
This area had burned before
No earlier perimeters overlap this fire since 2016, when the satellite record begins.
What happened to each town
-
1,597 ha reached on 16 Aug1.5 %
-
Posušje where it started833 ha reached on 16 Aug1.8 %
Burnt area inside each municipality, from crossing the official perimeter with administrative boundaries. The distance is from the town centre to the nearest fire: staying a kilometre away does not mean it reached the houses.
What burned
- Other natural land87 %
- Scrub and transitional woodland9.8 %
- Broadleaved forest3.0 %
Land cover inside the perimeter according to Corine Land Cover, as reported by Copernicus.
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) |
|---|---|---|---|---|---|
| 16 Aug | 23.7 °C | 27 % | 27 km/h | 0.0 mm | Moderate 20 |
| 17 Aug | 23.2 °C | 31 % | 31 km/h | 0.2 mm | Moderate 21 |
| 18 Aug | 25.4 °C | 22 % | 25 km/h | 0.0 mm | High 24 |
| 19 Aug | 25.3 °C | 23 % | 35 km/h | 0.0 mm | High 26 |
| 20 Aug | 20.5 °C | 35 % | 40 km/h | 4.8 mm | Very low 4 |
| 21 Aug | 16.1 °C | 33 % | 56 km/h | 0.7 mm | Low 9 |
| 22 Aug after | 15.9 °C | 28 % | 49 km/h | 0.0 mm | Moderate 15 |
| 23 Aug after | 19.9 °C | 23 % | 25 km/h | 0.0 mm | Moderate 18 |
| 24 Aug after | 23.2 °C | 21 % | 32 km/h | 0.0 mm | High 21 |
| 25 Aug after | 25.5 °C | 17 % | 22 km/h | 0.0 mm | High 24 |
| 26 Aug after | 25.9 °C | 18 % | 34 km/h | 0.0 mm | High 27 |
| 27 Aug after | 25.7 °C | 18 % | 24 km/h | 0.0 mm | High 26 |
| 28 Aug after | 23.7 °C | 31 % | 32 km/h | 1.5 mm | Moderate 13 |
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 · 495Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
- 13,227 haKupres (BiH)September 2026 · 6 days · 26 km away
- 2,763 haProzor-RamaDecember 2016 · 3 days · 28 km away
- 1,735 haTomislavgradAugust 2026 · 1 day · 28 km away
- 4,538 haIstočni MostarApril 2020 · 6 days · 33 km away
- 6,043 haTomislavgrad7 August 2021 · 5 days · 36 km away
- 2,087 haTomislavgrad30 March 2017 · 5 days · 37 km away
Frequently asked questions
- How long did the Posušje fire last?
- Copernicus dates it between 16 August 2017 and 21 August 2017: 6 days between the first and last image with fire.
- How much area did it burn?
- The perimeter Copernicus measured from satellite imagery is 2,423 hectares (24.2 km²). Official national figures may differ.
- Which municipalities burned?
- The fire entered 2 municipalities: Mostar (1,597 ha, 1.5 %); Posušje (833 ha, 1.8 %).
- What was the weather like?
- During the fire the temperature reached 25.4 °C, humidity dropped to 22 % and gusts hit 56 km/h. The fire danger index (FWI) reached 26, class High.
- Where does this data come from?
- From the EFFIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Bosnia & Herzegovina (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: 123 · 112
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 and land cover come from the Copernicus European Forest Fire Information System (EFFIS), measured on MODIS and Sentinel-2 imagery and published under CC BY 4.0. 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 ADM3 (Public Domain). The area per municipality is computed by WorldFires by crossing the perimeter with those boundaries, so it may differ slightly from each country’s official figure.