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HR · Croatia ·

Grad Gospić fire, 7 March 2021 Grad Gospić, Općina Perušić

Out · last detection 7 Mar 2021, 12:25 UTC

The fire started on 7 March 2021 in Grad Gospić, Croatia, and satellites saw it burning for 1 day. Copernicus mapped a burnt perimeter of 212 hectares from satellite imagery, spread across 2 municipalities.

It is the 42th largest in Lika-Senj since 2016 (of 85 with a page). Number 9 in Croatia in 2021, of 21.

The power measured by the satellite is low (7.6 MW in the strongest hotspot), more typical of grass or stubble burning, or a slow surface fire, than of a large crown fire.

Burnt area
212ha
Copernicus perimeter
Duration
1day
7 Mar 2021 – 7 Mar 2021
Municipalities hit
2
municipalities
Started on
7 Mar
2021
Heat detections
2
in a single hotspot: 8 MW
Danger at start
0
Very low · FWI index
Average daily power
12MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 7 Mar7 Mar

How it evolved, day by day

7 Mar 2021 · 12 MW · 2

Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.

The weather it burned in

8°high
20km/h · peak gust
23%lowest humidity

It had gone 0 days without rain (1 mm or more) when it started. Rain came after the fire: 4.5 mm on 12 Mar.

This area had burned before

26% of the perimeter overlaps earlier fires recorded since 2016: 16 ha in 2017, 40 ha in 2020.

What happened to each town

  1. Grad Gospić where it started
    135 ha reached on 7 Mar
    0.1 %
  2. 77 ha
    0.2 %

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

  • Scrub and transitional woodland90 %
  • Agricultural areas9.9 %

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)
7 Mar 8.4 °C 23 % 20 km/h 0.0 mm Very low 0
8 Mar after 10.8 °C 28 % 20 km/h 0.0 mm Very low 1
9 Mar after 6.4 °C 52 % 35 km/h 0.0 mm Very low 2
10 Mar after 7.2 °C 36 % 54 km/h 0.0 mm Very low 4
11 Mar after 9.6 °C 43 % 48 km/h 0.0 mm Very low 4
12 Mar after 7.8 °C 69 % 60 km/h 4.5 mm Very low 0

Its twins: fires that started in the same weather

It started with an FWI of 0.5, a minimum humidity of 23% and rain the day before. Fires in the area that started in weather like this since 2016: 15.

FWI at the start 0.5
Minimum humidity 23 %
Days without rain 0
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

Glamoč fire, March 2025
1,475 ha 4 days FWI 1.7 Min. humidity 23 % 106 km away, in 2025

First rain (1 mm or more) after it ended: 1.2 mm on 10 Mar.

What happened to them

3 days
median duration
363 ha
median area
27 %
went past 1,000 ha
2.3 mm
rain at the end (median; 11 of 15 had it)

It stayed below its twins: 212 ha against a median of 363 ha. It lasted 1 day, against 3 days.

In 4 of 15, 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 2.3 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

4.5 mmfirst rain
12 Mar5 days after it ended
20km/h · max. gust

It was considered over on 7 Mar, and on 12 Mar 4.5 mm fell. We do not know whether the rain or the firefighters put it out. Twins with rain when they ended: 11 of 15, with a median of 2.3 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.

How we calculate it

Before and after, from space

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

Before · 28 Feb 2021
After · 14 Mar 2021

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

The smoke

CAMS · Copernicus

On 9 March 2021 the air beside the fire reached 21 µg/m³ of PM2.5. That day averaged 18: 1.2 times the WHO daily guideline (15).

PM2.5 peak21 µg/m³
Days over the guideline2 days
PM1025 µg/m³
5 Mar7 Mar9 Mar
Good Fair Moderate Poor Very poor Extremely poor

Particles from the Copernicus CAMS model at the centre of the perimeter; these are not measurements in each town. The pale bar is the worst hour, the solid one the daily average.

Open-Meteo.com (CC BY 4.0) · Copernicus Atmosphere Monitoring Service (CAMS)

Detections table · 2Every 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 timeSatelliteFRP (MW)LatLon

Other fires nearby

All fires in Croatia

Frequently asked questions

How long did the Grad Gospić fire last?
Copernicus dates it between 7 March 2021 and 7 March 2021: 1 day between the first and last image with fire.
How much area did it burn?
The perimeter Copernicus measured from satellite imagery is 212 hectares (2.1 km²). Official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Grad Gospić (135 ha, 0.1 %); Općina Perušić (77 ha, 0.2 %).
What was the weather like?
During the fire the temperature reached 8.4 °C, humidity dropped to 23 % and gusts hit 20 km/h. The fire danger index (FWI) reached 0, class Very low.
Where does this data come from?
From the EFFIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Croatia (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: 15. Their median duration was 3 days and their median area 363 ha; 27 % went past 1,000 ha. In 4 of 15, 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 2.3 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: 112 · 193 · 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.

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 112 · 193.

How we know this
  • Perimeter: EFFIS (Copernicus), mapped on satellite imagery.
  • Dates from the perimeter: the VIIRS detections inside it did not change them. 2 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.

How we build fire pages: methodology

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 ADM2 (Creative Commons Attribution-ShareAlike 2.0). 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.