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Hasyaa fire, April 2021 Hasyaa

Out · last detection 30 Apr 2021, 22:50 UTC

The fire started on 30 April 2021 in Hasyaa, Syria, and satellites saw it burning for 2 days. Copernicus mapped a burnt perimeter of 163 hectares from satellite imagery, spread across a single municipality.

It is the 23th largest in Homs since 2016 (of 34 with a page). Number 16 in Syria in 2021, of 23.

The power measured by the satellite is low (1.6 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
163ha
Copernicus perimeter
Duration
2days
30 Apr 2021 – 1 May 2021
Municipalities hit
1
subdistricts
Started on
30 Apr
2021
Heat detections
3
in a single hotspot: 2 MW
Danger at start
39
Very high · FWI index
Average daily power
3MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 30 Apr1 May

How it evolved, day by day

30 Apr 2021 · 3 MW · 3

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

The weather it burned in

27°high
47km/h · peak gust
20%lowest humidity

It had gone 10 days without rain (1 mm or more) when it started.

This area had burned before

No earlier perimeters overlap this fire since 2016, when the satellite record begins.

What happened to each town

  1. Hasyaa where it started
    163 ha reached on 30 Apr
    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

  • Other natural land100 %

Land cover inside the perimeter as reported by Copernicus EFFIS (outside the Corine Land Cover area).

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)
1 May 27.0 °C 20 % 47 km/h 0.0 mm Very high 39
2 May after 26.8 °C 21 % 50 km/h 0.0 mm Very high 38
3 May after 29.9 °C 20 % 47 km/h 0.0 mm Very high 38
4 May after 31.4 °C 16 % 48 km/h 0.0 mm Very high 40
5 May after 29.6 °C 12 % 48 km/h 0.0 mm Very high 42
6 May after 28.8 °C 13 % 48 km/h 0.0 mm Very high 45
7 May after 26.9 °C 30 % 37 km/h 0.0 mm High 32
8 May after 30.0 °C 14 % 35 km/h 0.0 mm High 37
9 May after 31.0 °C 17 % 69 km/h 0.4 mm Very high 48
10 May after 29.2 °C 19 % 35 km/h 0.0 mm Very high 39
11 May after 28.6 °C 18 % 34 km/h 0.0 mm High 38

Before and after, from space

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

Before · 23 Apr 2021
After · 8 May 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.

Detections table · 3Every 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 Syria ›

Frequently asked questions

How long did the Hasyaa fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 30 April 2021 to 1 May 2021 (2 days). The perimeter dates it from 1 May 2021 to 1 May 2021.
How much area did it burn?
The perimeter Copernicus measured from satellite imagery is 163 hectares (1.6 km²). Official national figures may differ.
Which municipalities burned?
The fire only entered Hasyaa (163 ha, 0.2 %).
What was the weather like?
During the fire the temperature reached 27.0 °C, humidity dropped to 20 % and gusts hit 47 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 Syria (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.

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.
  1. Start date: 1 May 2021 → 30 April 2021.

RSS Changes to this page

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.

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How we know this
  • Perimeter: EFFIS (Copernicus), mapped on satellite imagery.
  • Dates adjusted with the VIIRS detections inside the perimeter, which said 1 May 2021 to 1 May 2021. 3 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 ADM3 (Creative Commons Attribution 3.0 Intergovernmental Organisations (CC BY 3.0 IGO)). 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.