Mostar fire, 14 August 2021 Mostar
The fire started on 14 August 2021 in Mostar, Bosnia & Herzegovina, and satellites saw it burning for 3 days. Copernicus mapped a burnt perimeter of 429 hectares from satellite imagery, spread across a single municipality.
It is the 143th largest in Federation of Bosnia and Herzegovina since 2016 (of 520 with a page). Number 26 in Bosnia & Herzegovina in 2021, of 86.
The power measured by the satellite is low (7.7 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…
- Burnt area
- 429ha
- Copernicus perimeter
- Duration
- 3days
- 14 Aug 2021 – 16 Aug 2021
- Municipalities hit
- 1
- municipalities
- Started on
- 14 Aug
- 2021
- Heat detections
- 21
- in a single hotspot: 8 MW
- Danger at start
- 29
- High · FWI index
- Average daily power
- 21MW
- detected power per day, on average
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 2 days without rain (1 mm or more) when it started. Rain came after the fire: 13.4 mm on 17 Aug.
This area had burned before
No earlier perimeters overlap this fire since 2016, when the satellite record begins.
What happened to each town
-
Mostar where it started429 ha reached on 14 Aug0.4 %
Burnt area inside each municipality, from crossing the official 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.
What burned
- Broadleaved forest46 %
- Other natural land45 %
- Sclerophyllous scrub8.6 %
- Scrub and transitional woodland1.2 %
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) |
|---|---|---|---|---|---|
| 14 Aug | 36.7 °C | 24 % | 39 km/h | 0.0 mm | High 29 |
| 15 Aug | 39.1 °C | 17 % | 30 km/h | 0.0 mm | High 34 |
| 16 Aug | 37.1 °C | 23 % | 44 km/h | 0.2 mm | Very high 39 |
| 17 Aug after | 33.2 °C | 45 % | 40 km/h | 13.4 mm | Very low 3 |
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 · 21Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
- 4,538 haIstočni MostarApril 2020 · 6 days · 10 km away
- 2,423 haPosušje16 August 2017 · 6 days · 24 km away
- 2,545 haNevesinje7 August 2026 · 3 days · 26 km away
- 4,094 haNevesinje16 August 2026 · 1 day · 34 km away
- 1,846 haČapljina21 August 2017 · 3 days · 34 km away
- 3,843 haKalinovikJanuary 2024 · 5 days · 39 km away
Frequently asked questions
- How long did the Mostar fire last?
- Copernicus dates it between 14 August 2021 and 16 August 2021: 3 days between the first and last image with fire.
- How much area did it burn?
- The perimeter Copernicus measured from satellite imagery is 429 hectares (4.3 km²). Official national figures may differ.
- Which municipalities burned?
- The fire only entered Mostar (429 ha, 0.4 %).
- What was the weather like?
- During the fire the temperature reached 39.1 °C, humidity dropped to 17 % and gusts hit 44 km/h. The fire danger index (FWI) reached 39, class Very 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 · Emergency number and official warnings ›
Satellite cross-check
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.
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
How we know this
- Perimeter: EFFIS (Copernicus), mapped on satellite imagery.
- Dates from the perimeter: the VIIRS detections inside it did not change them. 21 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.
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.