Burned area
satellite only109ha
Perimeter published by EFFIS (Copernicus).
- Source
- EFFIS (Copernicus)
- Date
- perimeter revised on 26 January 2022
+− cross-check
No official record is matched to this page to compare it with.
BA · Bosnia & Herzegovina · –
Široki Brijeg fire, August 2017 Čitluk, Široki Brijeg
Out · last detection 22 Aug 2017, 01:45 UTC
The fire started on 19 August 2017 in Široki Brijeg, Bosnia & Herzegovina, and satellites saw it burning for 4 days. Copernicus mapped a burnt perimeter of 109 hectares from satellite imagery, spread across 2 municipalities.
It is the 487th largest in Federation of Bosnia and Herzegovina since 2016 (of 521 with a page). Number 100 in Bosnia & Herzegovina in 2017, of 102.
The power measured by the satellite is low (6.2 MW in the strongest hotspot), more typical of grass or stubble burning, or a slow surface fire, than of a large crown fire.
Use this data
Compare with…
Use this data
Fire page data · version 2026-10-26matches the official recordwith caveatssatellite onlymodel
When copying, the sentence is
Tick the figures you want: they make up the lede and the CSV.
Duration by satellite
satellite only4days
19 Aug 2017 to 22 Aug 2017: first and last day with fire on the page.
- Source
- EFFIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- last detection: 22 Aug 2017, 01:45 UTC
+− cross-check
Satellites pass a few times a day and cloud or smoke can hide the fire: a lack of detections is not an official extinction. Each country’s emergency service declares a fire contained or out.
Start
satellite only19 Aug 2017
First day with fire seen by the satellites or the perimeter.
- Source
- EFFIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- 19 Aug 2017
+− cross-check
No official record is matched to this page, so the alert time and the cause are not known here.
Hotspots
satellite only13
VIIRS detections at 375 m. Most intense hotspot: 6 MW.
- Source
- NASA FIRMS · VIIRS (Suomi NPP)
- Date
- 19 Aug 2017 – 22 Aug 2017
+− cross-check
There is no official record to compare with. Each hotspot is a pixel detected in one satellite pass, not a separate fire.
The worst day
satellite only16MW
Total radiative power on 22 August 2017; hotspots that day: 6.
- Source
- NASA FIRMS · VIIRS (FRP)
- Date
- 22 Aug 2017
+− cross-check
Fire radiative power (FRP) measures the energy the fire gives off when the satellite passes. Added up by day, it compares intensity, not area.
Danger at the start
model49.9FWI · very high
Fire Weather Index (Canadian system) computed by WorldFires for the day the fire started. Consecutive days without rain before: 24.
- Source
- WorldFires calculation (Canadian FWI system)
- Date
- 19 Aug 2017, local noon
- Model
- ERA5 0,25° (ECMWF · Copernicus C3S) · Open-Meteo.com
+− cross-check
This is an index computed from weather model data, not a measurement of the fire nor an official warning. Danger warnings are issued by each country’s authority. Emergency number and official warnings
Weather during the fire
model35.6°C · 21% RH
High of 35.6 °C and minimum humidity of 21% on 19 August 2017; gusts of 55 km/h on 21 August 2017.
- Source
- weather model at the fire’s grid cell
- Date
- 19 Aug 2017 – 22 Aug 2017
- Model
- ERA5 0,25° (ECMWF · Copernicus C3S) · Open-Meteo.com
+− cross-check
These are model values for a cell of about 25 km, not from a weather station: they may differ from what was measured on the ground.
This page’s change log has been kept since 24 October 2026: every night what it publishes is compared and the difference is logged. Anything earlier is reconstructed from each source’s date and marked as reconstructed.
Show
-
· reconstructed weatherWeather and FWI computed from the ERA5 reanalysis
-
logStart date: 20 August 2017 → 19 August 2017.
-
· reconstructed GHSLPopulation and built-up area computed
-
· reconstructed perimeterEFFIS (Copernicus) revises the perimeter
What was saved on 26 October 2026
Every night a snapshot of what the page shows is saved. If anything changes, it appears in the list as a log entry.
- Area
- 109 ha
- Dates
- 19 Aug 2017 – 22 Aug 2017
- Name
- Široki Brijeg
- Official record
- —
Versioned permanent link
https://worldfires.org/en/fire/siroki-brijeg-2017-08?v=2026-10-26A version keeps the area, dates, name and official record; the area as it was logged (changes under 2% are not logged). The map, hotspots and weather always show today’s data.
Citation
A lede of about 60 words figures only, no adjectives
CSV for this fire siroki-brijeg-2017-08.csv · daily, no individual hotspots
| fecha | focos_viirs | frp_mw | tmax_c | tmin_c | hr_min_pct | viento_max_kmh | racha_max_kmh | precip_mm | fwi | clase_fwi | dentro_del_incendio |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2017-08-19 | 0 | 0 | 35.6 | 18.6 | 21 | 11.8 | 37.8 | 0 | 49.9 | muy_alto | 1 |
| 2017-08-20 | 1 | 1 | 31.4 | 19.1 | 31 | 16.4 | 41.8 | 1.9 | 41.4 | muy_alto | 1 |
| 2017-08-21 | 6 | 15 | 26.8 | 16.7 | 28 | 18.7 | 55.1 | 0.2 | 29.8 | alto | 1 |
| 2017-08-22 | 6 | 16 | 26.8 | 14.3 | 24 | 15.3 | 46.8 | 0 | 39.3 | muy_alto | 1 |
| 2017-08-23 | 0 | 0 | 29.8 | 11.7 | 19 | 8.3 | 25.9 | 0 | 35.6 | alto | 0 |
| 2017-08-24 | 0 | 0 | 33.1 | 13.1 | 19 | 10.3 | 32.8 | 0 | 42.6 | muy_alto | 0 |
| 2017-08-25 | 0 | 0 | 35.8 | 14.8 | 14 | 9.7 | 27 | 0 | 44.2 | muy_alto | 0 |
| 2017-08-26 | 0 | 0 | 36.3 | 16.5 | 13 | 10.5 | 32 | 0 | 46.5 | muy_alto | 0 |
| 2017-08-27 | 0 | 0 | 36.2 | 17.1 | 14 | 9.8 | 30.2 | 0 | 49.6 | muy_alto | 0 |
| 2017-08-28 | 0 | 0 | 34.4 | 19.1 | 26 | 13.7 | 34.2 | 0.3 | 45.3 | muy_alto | 0 |
| 2017-08-29 | 0 | 0 | 30.1 | 18.2 | 31 | 15.6 | 47.9 | 0.1 | 51.6 | extremo | 0 |
| 2017-08-30 | 0 | 0 | 32.6 | 14.4 | 13 | 9.4 | 25.6 | 0 | 45 | muy_alto | 0 |
| 2017-08-31 | 0 | 0 | 32 | 14.5 | 20 | 10.4 | 30.2 | 0 | 50.8 | extremo | 0 |
| 2017-09-01 | 0 | 0 | 30.8 | 16.4 | 31 | 9.9 | 34.2 | 0 | 46 | muy_alto | 0 |
It is generated in your browser from this page’s data: one file per fire, aggregated by day and without individual hotspots.
Live widget for your story
It updates itself while the fire is still active and links to this page. Free, with the attribution shown at the bottom.
Sources for this page: EFFIS (Copernicus), NASA FIRMS (VIIRS), ERA5 (ECMWF/Copernicus C3S) · Open-Meteo.com (CC BY 4.0), GHSL (JRC). Open-Meteo.com · How we build fire pages: methodology
- Burnt area
- 109ha
- Copernicus perimeter
- Duration
- 4days
- 19 Aug 2017 – 22 Aug 2017
- Municipalities hit
- 2
- municipalities
- Started on
- 19 Aug
- 2017
- Heat detections
- 13
- in a single hotspot: 6 MW
- Danger at start
- 50
- Very high · FWI index
- Average daily power
- 11MW
- detected power per day, on average
Where it burned
HOTSPOTS BY DAY
19 Aug22 Aug
22 Aug 2017
How it evolved, day by day
20 Aug
21 Aug
22 Aug
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
55km/h · peak gust
21%lowest humidity
It had gone 24 days without rain (1 mm or more) when it started.
This area had burned before
25% of the perimeter overlaps earlier fires recorded since 2016: 27 ha in 2016.
What happened to each town
-
98 ha reached on 21 Aug0.5 %
-
Široki Brijeg where it started11 ha reached on 20 Aug0.0 %
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 forest55 %
- Agricultural areas32 %
- Coniferous forest6.3 %
- Sclerophyllous scrub6.3 %
Land cover inside the perimeter according to Corine Land Cover, as reported by Copernicus.
People and buildings inside the perimeter
GHSL 2015Built-up area0.16 ha
Residents< 20
Inside the perimeter there were about 0.16 hectares of 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) |
|---|---|---|---|---|---|
| 19 Aug | 35.6 °C | 21 % | 38 km/h | 0.0 mm | Very high 50 |
| 20 Aug | 31.4 °C | 31 % | 42 km/h | 1.9 mm | Very high 41 |
| 21 Aug | 26.8 °C | 28 % | 55 km/h | 0.2 mm | High 30 |
| 22 Aug | 26.8 °C | 24 % | 47 km/h | 0.0 mm | Very high 39 |
| 23 Aug after | 29.8 °C | 19 % | 26 km/h | 0.0 mm | High 36 |
| 24 Aug after | 33.1 °C | 19 % | 33 km/h | 0.0 mm | Very high 43 |
| 25 Aug after | 35.8 °C | 14 % | 27 km/h | 0.0 mm | Very high 44 |
| 26 Aug after | 36.3 °C | 13 % | 32 km/h | 0.0 mm | Very high 46 |
| 27 Aug after | 36.2 °C | 14 % | 30 km/h | 0.0 mm | Very high 50 |
| 28 Aug after | 34.4 °C | 26 % | 34 km/h | 0.3 mm | Very high 45 |
| 29 Aug after | 30.1 °C | 31 % | 48 km/h | 0.1 mm | Extreme 52 |
| 30 Aug after | 32.6 °C | 13 % | 26 km/h | 0.0 mm | Very high 45 |
| 31 Aug after | 32.0 °C | 20 % | 30 km/h | 0.0 mm | Extreme 51 |
| 1 Sept after | 30.8 °C | 31 % | 34 km/h | 0.0 mm | Very high 46 |
Its twins: fires that started in the same weather
It started with an FWI of 49.9, a minimum humidity of 21% and 24 days without rain. Fires in the area that started in weather like this since 2016: 18.
FWI at the start
49.9
Minimum humidity
21 %
Days without rain
24
this fire
chosen twins
rest of the area
Almost identicalSimilar
Outlines of the closest twins
This fire · Široki Brijeg fire, August 2017
109 ha
4 days
FWI 49.9
Min. humidity 21 %
Neum fire, July 2017
653 ha
6 days
FWI 50.2
Min. humidity 21 %
42 km away, in 2017
First rain (1 mm or more) after it ended: none in the following ten days.
Općina Dubrovačko primorje fire, July 2017
1,444 ha
6 days
FWI 50.7
Min. humidity 21 %
45 km away, in 2017
First rain (1 mm or more) after it ended: none in the following ten days.
Čapljina fire, July 2022
208 ha
1 day
FWI 47.8
Min. humidity 19 %
14 km away, in 2022
First rain (1 mm or more) after it ended: 1.8 mm on 27 Jul.
Čitluk fire, August 2026
131 ha
2 days
FWI 48.8
Min. humidity 24 %
9 km away, in 2026
First rain (1 mm or more) after it ended: none in the following ten days.
Široki Brijeg fire, July 2021
249 ha
4 days
FWI 49.6
Min. humidity 19 %
27 km away, in 2021
First rain (1 mm or more) after it ended: 11.0 mm on 5 Aug.
What happened to them
- 4 days
- median duration
- 260 ha
- median area
- 17 %
- went past 1,000 ha
- 3.0 mm
- rain at the end (median; 15 of 18 had it)
It stayed below its twins: 109 ha against a median of 260 ha. It lasted 4 days, against 4 days.
In 3 of 18, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 3.0 mm.
This is a bank of analogues: it shows what usually happens, not what will happen. With fewer than 15 twins we give no figures. How we calculate it
How it ended
—first rain
—no rain in ten days
55km/h · max. gust
It was considered over on 22 Aug, and not even 1 mm fell in the following ten days: it went out without rain. Twins with rain when they ended: 15 of 18, with a median of 3.0 mm.
Weather on this page: Open-Meteo.com (CC BY 4.0) · Copernicus Climate Change Service (ERA5)
How a twin is chosen
- Same area: fires that have already ended, less than 250 km from this one, since 2016.
- Same start: we compare the FWI on the first day, the minimum humidity that day and the run of days without rain before it. The slider sets how much they may differ.
- Only pages with final weather data (ERA5 reanalysis) calculated in the same way as this fire’s; agricultural and grass burns and pages with data under review are left out.
- Fires burning at the same time as this one (a week before or after) are left out: they share the same spell of weather and do not count as a precedent.
- They are sorted by similarity, and the outlines of the first five are drawn.
Before and after, from space
Drag the line to compare the same ground before the fire and after it.
↔
Before · 12 Aug 2017
After · 29 Aug 2017
Sentinel-2 did not pass over on that day. Try another date, or use false colour, which is daily.
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 · 13Every 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
- 1,846 haČapljina21 August 2017 · 3 days · 15 km away
- 4,538 haIstočni MostarApril 2020 · 7 days · 25 km away
- 2,423 haPosušje16 August 2017 · 13 days · 33 km away
- 2,186 haBerkovići19 August 2017 · 6 days · 36 km away
- 2,027 haNeumAugust 2022 · 9 days · 37 km away
- 2,545 haNevesinje7 August 2026 · 33 days · 39 km away
Frequently asked questions
- How long did the Široki Brijeg fire last?
- According to the heat detections seen by satellite inside the perimeter, it burned from 19 August 2017 to 22 August 2017 (4 days). The perimeter dates it from 20 August 2017 to 22 August 2017.
- How much area did it burn?
- The perimeter Copernicus measured from satellite imagery is 109 hectares (1.1 km²). Official national figures may differ.
- Which municipalities burned?
- The fire entered 2 municipalities: Čitluk (98 ha, 0.5 %); Široki Brijeg (11 ha, 0.0 %).
- What was the weather like?
- During the fire the temperature reached 35.6 °C, humidity dropped to 21 % and gusts hit 55 km/h. The fire danger index (FWI) reached 50, 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.
- How did the fires that started in similar weather in this area end?
- Fires less than 250 km away that started since 2016 with a similar FWI, humidity and dry spell: 18. Their median duration was 4 days and their median area 260 ha; 17 % went past 1,000 ha. In 3 of 18, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 3.0 mm.
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 · 1 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
- Start date: 20 August 2017 → 19 August 2017.
RSS Changes to this page With cross-checks and a citable version
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 adjusted with the VIIRS detections inside the perimeter, which said 20 August 2017 to 22 August 2017. 13 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.
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.