Cleto fire, August 2021 Cleto, Aiello Calabro
The fire started on 12 August 2021 in Cleto, Italy, and satellites saw it burning for 2 days. Copernicus mapped a burnt perimeter of 227 hectares from satellite imagery, spread across 2 municipalities.
It is the 48th largest in Cosenza since 2016 (of 145 with a page). Number 132 in Italy in 2021, of 291.
The power measured by the satellite is low (28.2 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
- 227ha
- Copernicus perimeter
- Duration
- 2days
- 12 Aug 2021 – 13 Aug 2021
- Municipalities hit
- 2
- municipalities
- Started on
- 12 Aug
- 2021
- Heat detections
- 33
- in a single hotspot: 28 MW
- Danger at start
- 14
- Moderate · FWI index
- Energy released
- 176MW
- 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 23 days without rain (1 mm or more) when it started. Rain came after the fire: 2.8 mm on 21 Aug.
This area had burned before
60% of the perimeter overlaps earlier fires recorded since 2016: 101 ha in 2017, 81 ha in 2019. Part of it burned more than once, so the yearly figures add up to more than the 136 ha that had burned before.
What happened to each town
-
133 ha reached on 11 Aug7.1 %
-
Aiello Calabro 1,406 inhabitants · 2.0 km from the town93 ha reached on 11 Aug2.5 %
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
- Mixed forest39 %
- Other natural land37 %
- Scrub and transitional woodland13 %
- Agricultural areas11 %
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) |
|---|---|---|---|---|---|
| 12 Aug | 27.2 °C | 68 % | 20 km/h | 0.0 mm | Moderate 14 |
| 13 Aug | 27.1 °C | 64 % | 20 km/h | 0.0 mm | Moderate 14 |
| 14 Aug after | 27.0 °C | 67 % | 22 km/h | 0.0 mm | Moderate 13 |
| 15 Aug after | 27.1 °C | 62 % | 22 km/h | 0.0 mm | Moderate 14 |
| 16 Aug after | 26.1 °C | 68 % | 22 km/h | 0.3 mm | Moderate 15 |
| 17 Aug after | 27.8 °C | 44 % | 20 km/h | 0.2 mm | Moderate 18 |
| 18 Aug after | 24.6 °C | 66 % | 28 km/h | 0.2 mm | Moderate 17 |
| 19 Aug after | 24.5 °C | 65 % | 23 km/h | 0.0 mm | Moderate 16 |
| 20 Aug after | 25.2 °C | 58 % | 22 km/h | 0.0 mm | Moderate 14 |
| 21 Aug after | 24.4 °C | 67 % | 21 km/h | 2.8 mm | Very low 4 |
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.
The smoke
CAMS · CopernicusOn 12 August 2021 the air beside the fire reached 28 µg/m³ of PM2.5. That day averaged 23: 1.5 times the WHO daily guideline (15).
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 · 33Every 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 Cleto fire last?
- Copernicus dates it between 12 August 2021 and 13 August 2021: 2 days between the first and last image with fire.
- How much area did it burn?
- The perimeter Copernicus measured from satellite imagery is 227 hectares (2.3 km²). Official national figures may differ.
- Which municipalities burned?
- The fire entered 2 municipalities: Cleto (133 ha, 7.1 %); Aiello Calabro (93 ha, 2.5 %).
- Did the fire reach a town?
- The closest fire to a town centre came within 0.3 km of Cleto. That is the distance to the perimeter or nearest hotspot; it does not mean it entered the houses.
- What was the weather like?
- During the fire the temperature reached 27.2 °C, humidity dropped to 64 % and gusts hit 20 km/h. The fire danger index (FWI) reached 14, class Moderate.
- Where does this data come from?
- From the EFFIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Italy (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: 112 · 1515
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 ADM4 (Creative Commons Attribution 3.0 License). 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.