Burned area
satellite only146ha
Perimeter published by EFFIS (Copernicus).
- Source
- EFFIS (Copernicus)
- Date
- perimeter revised on 24 October 2024
+− cross-check
No official record is matched to this page to compare it with.
UA · Ukraine ·
Hlukhiv fire, 20 September 2024 Глухів · Hlukhiv
Out · last measured on 20 Sept 2024
The fire started on 20 September 2024 in Hlukhiv, Ukraine, and satellites saw it burning for 1 day. Copernicus mapped a burnt perimeter of 146 hectares from satellite imagery, spread across a single municipality.
It is the 80th largest in Sumy Oblast since 2016 (of 129 with a page). Number 1377 in Ukraine in 2024, of 2092.
Use this data
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Use this data
Fire page data · version 2026-10-24matches 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 only1day
20 Sept 2024 to 20 Sept 2024: first and last day with fire on the page.
- Source
- EFFIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- 20 Sept 2024 – 20 Sept 2024
+− 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 only20 Sept 2024
First day with fire seen by the satellites or the perimeter.
- Source
- EFFIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- 20 Sept 2024
+− cross-check
No official record is matched to this page, so the alert time and the cause are not known here.
Danger at the start
model37.4FWI · high
Fire Weather Index (Canadian system) computed by WorldFires for the day the fire started. Consecutive days without rain before: 37.
- Source
- WorldFires calculation (Canadian FWI system)
- Date
- 20 Sept 2024, 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
model22.8°C · 41% RH
High of 22.8 °C and minimum humidity of 41% on 20 September 2024; gusts of 30 km/h on 20 September 2024.
- Source
- weather model at the fire’s grid cell
- Date
- 20 Sept 2024 – 20 Sept 2024
- 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
-
· reconstructed perimeterEFFIS (Copernicus) revises the perimeter
What was saved on 24 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
- 146 ha
- Dates
- 20 Sept 2024 – 20 Sept 2024
- Name
- Hlukhiv
- Official record
- —
Versioned permanent link
https://worldfires.org/en/fire/hlukhiv-2024-09-6?v=2026-10-24A 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 hlukhiv-2024-09-6.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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024-09-20 | 0 | 0 | 22.8 | 8.3 | 41 | 14.6 | 29.9 | 0 | 37.4 | alto | 1 |
| 2024-09-21 | 0 | 0 | 23.9 | 7.2 | 37 | 11.6 | 23.4 | 0 | 32.7 | alto | 0 |
| 2024-09-22 | 0 | 0 | 22.8 | 8.7 | 39 | 13.6 | 26.6 | 0 | 33.8 | alto | 0 |
| 2024-09-23 | 0 | 0 | 22.6 | 6.4 | 35 | 12.1 | 23 | 0 | 32.5 | alto | 0 |
| 2024-09-24 | 0 | 0 | 24.8 | 7.3 | 30 | 14.5 | 29.9 | 0 | 40.2 | muy_alto | 0 |
| 2024-09-25 | 0 | 0 | 25.5 | 10.6 | 28 | 17.8 | 34.2 | 0 | 46.9 | muy_alto | 0 |
| 2024-09-26 | 0 | 0 | 21.8 | 9.8 | 36 | 21 | 39.6 | 0 | 49.4 | muy_alto | 0 |
| 2024-09-27 | 0 | 0 | 23.3 | 16.4 | 46 | 32.5 | 58 | 0.2 | 55.9 | extremo | 0 |
| 2024-09-28 | 0 | 0 | 27.7 | 17.7 | 33 | 27.9 | 51.1 | 0 | 57.5 | extremo | 0 |
| 2024-09-29 | 0 | 0 | 23.1 | 12.5 | 35 | 21.4 | 40.7 | 0 | 39.6 | muy_alto | 0 |
| 2024-09-30 | 0 | 0 | 18.7 | 11.1 | 40 | 19.7 | 42.8 | 0 | 42.7 | 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). Open-Meteo.com · How we build fire pages: methodology
We have the Copernicus perimeter for this fire, but the VIIRS sensors did not capture it in enough detail: no day-by-day evolution, but the split by municipality is there.
- Burnt area
- 146ha
- Copernicus perimeter
- Duration
- 1day
- 20 Sept 2024 – 20 Sept 2024
- Municipalities hit
- 1
- districts
- Started on
- 20 Sept
- 2024
- Danger at start
- 37
- High · FWI index
Where it burned
The weather it burned in
23°high
30km/h · peak gust
41%lowest humidity
It had gone 37 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
-
146 ha reached on 15 Sept0.1 %
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
- Mixed forest37 %
- Other natural land31 %
- Agricultural areas31 %
- Artificial surfaces0.7 %
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) |
|---|---|---|---|---|---|
| 20 Sept | 22.8 °C | 41 % | 30 km/h | 0.0 mm | High 37 |
| 21 Sept after | 23.9 °C | 37 % | 23 km/h | 0.0 mm | High 33 |
| 22 Sept after | 22.8 °C | 39 % | 27 km/h | 0.0 mm | High 34 |
| 23 Sept after | 22.6 °C | 35 % | 23 km/h | 0.0 mm | High 32 |
| 24 Sept after | 24.8 °C | 30 % | 30 km/h | 0.0 mm | Very high 40 |
| 25 Sept after | 25.5 °C | 28 % | 34 km/h | 0.0 mm | Very high 47 |
| 26 Sept after | 21.8 °C | 36 % | 40 km/h | 0.0 mm | Very high 49 |
| 27 Sept after | 23.3 °C | 46 % | 58 km/h | 0.2 mm | Extreme 56 |
| 28 Sept after | 27.7 °C | 33 % | 51 km/h | 0.0 mm | Extreme 58 |
| 29 Sept after | 23.1 °C | 35 % | 41 km/h | 0.0 mm | Very high 40 |
| 30 Sept after | 18.7 °C | 40 % | 43 km/h | 0.0 mm | Very high 43 |
Its twins: fires that started in the same weather
It started with an FWI of 37.4, a minimum humidity of 41% and 37 days without rain. Fires in the area that started in weather like this since 2020: 13.
FWI at the start
37.4
Minimum humidity
41 %
Days without rain
37
this fire
chosen twins
rest of the area
Almost identicalSimilar
Outlines of the closest twins
This fire · Hlukhiv fire, 20 September 2024
146 ha
1 day
FWI 37.4
Min. humidity 41 %
Borzna fire, September 2024
357 ha
3 days
FWI 40.5
Min. humidity 39 %
159 km away, in 2024
First rain (1 mm or more) after it ended: none in the following ten days.
Semenivka fire, September 2024
291 ha
7 days
FWI 32.1
Min. humidity 44 %
130 km away, in 2024
First rain (1 mm or more) after it ended: 7.2 mm on 5 Oct.
Krasnopillia fire, October 2024
109 ha
1 day
FWI 45.4
Min. humidity 40 %
132 km away, in 2024
First rain (1 mm or more) after it ended: 2.6 mm on 5 Oct.
Krasnopillia fire, September 2024
107 ha
3 days
FWI 40.9
Min. humidity 36 %
137 km away, in 2024
First rain (1 mm or more) after it ended: 2.0 mm on 5 Oct.
Novhorod-Siverskyi fire, September 2024
536 ha
5 days
FWI 46.6
Min. humidity 35 %
76 km away, in 2024
First rain (1 mm or more) after it ended: 3.4 mm on 4 Oct.
What happened to them
Fires in the area that started in similar weather: 13. With fewer than 15 we give no figures: they would be more noise than signal.
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
30km/h · max. gust
It was considered over on 20 Sept, and not even 1 mm fell in the following ten days: it went out without rain.
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 2020.
- 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 · 13 Sept 2024
After · 27 Sept 2024
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.
The smoke
CAMS · CopernicusOn 20 September 2024 the air beside the fire reached 8 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).
PM2.5 peak8 µg/m³
Days over the guideline0 days
PM1014 µg/m³
Optical depth0.20
18 Sept20 Sept22 Sept
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)
Other fires nearby
- 408 haHlukhiv Глухів25 March 2026 · 1 day · 2 km away
- 520 haHlukhiv Глухів19 April 2025 · 2 days · 3 km away
- 420 haHlukhiv Глухів14 September 2024 · 3 days · 3 km away
- 585 haYampil Ямпільський район4 September 2024 · 3 days · 13 km away
- 645 haYampil Ямпільський район23 September 2024 · 1 day · 16 km away
- 734 haYampil Ямпільський район30 August 2024 · 8 days · 21 km away
Frequently asked questions
- How long did the Hlukhiv fire last?
- Copernicus dates it between 20 September 2024 and 20 September 2024: 1 day between the first and last image with fire.
- How much area did it burn?
- The perimeter Copernicus measured from satellite imagery is 146 hectares (1.5 km²). Official national figures may differ.
- Which municipalities burned?
- The fire only entered Hlukhiv (146 ha, 0.1 %).
- Did the fire reach a town?
- The fire started in Hlukhiv and came within 35.5 km of its centre. That is the distance from the perimeter, or the nearest hotspot, to the point marking the centre; it does not mean it entered the houses.
- What was the weather like?
- During the fire the temperature reached 22.8 °C, humidity dropped to 41 % and gusts hit 30 km/h. The fire danger index (FWI) reached 37, class High.
- Where does this data come from?
- From the EFFIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Ukraine (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: 101 · 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.
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 from the perimeter: the VIIRS detections inside it did not change them. No 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 ADM2 (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.