Burned area
satellite only2,239ha
Perimeter published by GWIS (Copernicus).
- Source
- GWIS (Copernicus)
- Date
- 11 Aug 2026 – 20 Aug 2026
+− cross-check
No official record is matched to this page to compare it with.
PG · Papua New Guinea · –
Middle Fly District fire, 11 August 2026 Middle Fly District
Out · last detection 20 Aug 2026, 15:50 UTC
The fire started on 11 August 2026 in Middle Fly District, Papua New Guinea, and satellites saw it burning for 10 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 2,239 hectares from heat detections, spread across a single municipality.
Number 170 in Papua New Guinea in 2026, of 196.
GWIS near-real-time perimeter, from the layer that changed in October 2025: this fire is not compared with fires from earlier years, because since then the GWIS layer gives more and larger perimeters.
Use this data
Fire page data · version 2026-11-05matches 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 only10days
11 Aug 2026 to 20 Aug 2026: first and last day with fire on the page.
- Source
- GWIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- last detection: 20 Aug 2026, 15:50 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 only11 Aug 2026
First day with fire seen by the satellites or the perimeter.
- Source
- GWIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- 11 Aug 2026
+− cross-check
No official record is matched to this page, so the alert time and the cause are not known here.
Hotspots
satellite only61
VIIRS detections at 375 m. Most intense hotspot: 54 MW.
- Source
- NASA FIRMS · VIIRS (Suomi NPP)
- Date
- 11 Aug 2026 – 20 Aug 2026
+− 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 only205MW
Total radiative power on 11 August 2026; hotspots that day: 26.
- Source
- NASA FIRMS · VIIRS (FRP)
- Date
- 11 Aug 2026
+− 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
model18.1FWI · moderate
Fire Weather Index (Canadian system) computed by WorldFires for the day the fire started. Consecutive days without rain before: 31.
- Source
- WorldFires calculation (Canadian FWI system)
- Date
- 11 Aug 2026, 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
model32.1°C · 54% RH
High of 32.1 °C and minimum humidity of 54% on 11 August 2026; gusts of 43 km/h on 18 August 2026.
- Source
- weather model at the fire’s grid cell
- Date
- 11 Aug 2026 – 20 Aug 2026
- 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 5 November 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
-
logPage published (2,239 ha).
-
· reconstructed weatherWeather and FWI computed from the ERA5 reanalysis
What was saved on 5 November 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
- 2,239 ha
- Dates
- 11 Aug 2026 – 20 Aug 2026
- Name
- Middle Fly District
- Official record
- —
Versioned permanent link
https://worldfires.org/en/fire/middle-fly-district-2026-08?v=2026-11-05A 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 middle-fly-district-2026-08.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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-08-11 | 26 | 205 | 32.1 | 23.7 | 54 | 14.2 | 28.1 | 0 | 18.1 | moderado | 1 |
| 2026-08-12 | 13 | 174 | 30.9 | 23.3 | 53 | 14.1 | 31.3 | 0 | 18 | moderado | 1 |
| 2026-08-13 | 11 | 20 | 31.3 | 23.4 | 52 | 13.7 | 29.9 | 0 | 19.2 | moderado | 1 |
| 2026-08-14 | 0 | 0 | 31.5 | 23.7 | 47 | 15.5 | 35.3 | 0 | 21.1 | moderado | 1 |
| 2026-08-15 | 0 | 0 | 30.1 | 23.6 | 53 | 17.2 | 38.9 | 0 | 23.6 | alto | 1 |
| 2026-08-16 | 1 | 5 | 29 | 22.4 | 54 | 17.1 | 40.7 | 0 | 22.8 | alto | 1 |
| 2026-08-17 | 0 | 0 | 29.8 | 22 | 47 | 17.8 | 40 | 0 | 21.6 | alto | 1 |
| 2026-08-18 | 0 | 0 | 30 | 22.2 | 49 | 18.7 | 43.2 | 0.1 | 23.3 | alto | 1 |
| 2026-08-19 | 4 | 19 | 30.4 | 21.7 | 50 | 17.6 | 42.8 | 0.1 | 23.5 | alto | 1 |
| 2026-08-20 | 6 | 18 | 30.8 | 21.5 | 42 | 16.9 | 40 | 0 | 23.3 | alto | 1 |
| 2026-08-21 | 0 | 0 | 30.8 | 21.3 | 41 | 15.3 | 39.6 | 0 | 24.4 | alto | 0 |
| 2026-08-22 | 0 | 0 | 29.7 | 21.3 | 48 | 16.9 | 37.1 | 0 | 23.1 | alto | 0 |
| 2026-08-23 | 0 | 0 | 29.5 | 21.1 | 52 | 16.9 | 38.2 | 0 | 24.9 | alto | 0 |
| 2026-08-24 | 0 | 0 | 30.5 | 22 | 49 | 18.1 | 41.8 | 0 | 24.9 | alto | 0 |
| 2026-08-25 | 0 | 0 | 29.7 | 22.2 | 57 | 16.3 | 36.7 | 0 | 24.4 | alto | 0 |
| 2026-08-26 | 0 | 0 | 30.1 | 23.7 | 57 | 15.4 | 33.1 | 0.4 | 24.1 | alto | 0 |
| 2026-08-27 | 0 | 0 | 30.9 | 24.1 | 59 | 14.6 | 36.7 | 0.7 | 25.2 | alto | 0 |
| 2026-08-28 | 0 | 0 | 30.2 | 24.8 | 65 | 17.7 | 44.6 | 0.8 | 14.9 | moderado | 0 |
| 2026-08-29 | 0 | 0 | 28.8 | 24.7 | 63 | 17.6 | 42.8 | 0.6 | 17.4 | moderado | 0 |
| 2026-08-30 | 0 | 0 | 28.8 | 23.5 | 60 | 17.8 | 40.3 | 0.2 | 21.6 | 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: GWIS (Copernicus), NASA FIRMS (VIIRS), ERA5 (ECMWF/Copernicus C3S) · Open-Meteo.com (CC BY 4.0). Open-Meteo.com · How we build fire pages: methodology
- Burnt area
- 2,239ha
- GWIS perimeter (Copernicus)
- Duration
- 10days
- 11 Aug 2026 – 20 Aug 2026
- Municipalities hit
- 1
- districts
- Started on
- 11 Aug
- 2026
- Heat detections
- 61
- in a single hotspot: 54 MW
- Danger at start
- 18
- Moderate · FWI index
- Average daily power
- 73MW
- detected power per day, on average
Where it burned
HOTSPOTS BY DAY
11 Aug20 Aug
20 Aug 2026
How it evolved, day by day
11 Aug
13 Aug
19 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
32°high
43km/h · peak gust
42%lowest humidity
It had gone 31 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.
How big is it?
London boundary: geoBoundaries · Office for National Statistics (Open Government Licence v3.0).
Paris boundary: geoBoundaries · Institut national de l'information géographique et forestière (IGN-F) (Etalab Open License 2.0).
Madrid boundary: geoBoundaries · Open Data ESRI, IGN Central Registry of Cartography Area (CC BY 4.0).
Berlin boundary: geoBoundaries · Federal Agency for Cartography and Geodesy (dl-de/by-2-0).
This compares size, not location: both shapes are at the same scale, north up, centred on each other.
What happened to each town
-
Middle Fly District where it started2,254 ha reached on 11 Aug0.0 %
Burnt area inside each municipality, from crossing the GWIS 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.
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) |
|---|---|---|---|---|---|
| 11 Aug | 32.1 °C | 54 % | 28 km/h | 0.0 mm | Moderate 18 |
| 12 Aug | 30.9 °C | 53 % | 31 km/h | 0.0 mm | Moderate 18 |
| 13 Aug | 31.3 °C | 52 % | 30 km/h | 0.0 mm | Moderate 19 |
| 14 Aug | 31.5 °C | 47 % | 35 km/h | 0.0 mm | Moderate 21 |
| 15 Aug | 30.1 °C | 53 % | 39 km/h | 0.0 mm | High 24 |
| 16 Aug | 29.0 °C | 54 % | 41 km/h | 0.0 mm | High 23 |
| 17 Aug | 29.8 °C | 47 % | 40 km/h | 0.0 mm | High 22 |
| 18 Aug | 30.0 °C | 49 % | 43 km/h | 0.1 mm | High 23 |
| 19 Aug | 30.4 °C | 50 % | 43 km/h | 0.1 mm | High 24 |
| 20 Aug | 30.8 °C | 42 % | 40 km/h | 0.0 mm | High 23 |
| 21 Aug after | 30.8 °C | 41 % | 40 km/h | 0.0 mm | High 24 |
| 22 Aug after | 29.7 °C | 48 % | 37 km/h | 0.0 mm | High 23 |
| 23 Aug after | 29.5 °C | 52 % | 38 km/h | 0.0 mm | High 25 |
| 24 Aug after | 30.5 °C | 49 % | 42 km/h | 0.0 mm | High 25 |
| 25 Aug after | 29.7 °C | 57 % | 37 km/h | 0.0 mm | High 24 |
| 26 Aug after | 30.1 °C | 57 % | 33 km/h | 0.4 mm | High 24 |
| 27 Aug after | 30.9 °C | 59 % | 37 km/h | 0.7 mm | High 25 |
| 28 Aug after | 30.2 °C | 65 % | 45 km/h | 0.8 mm | Moderate 15 |
| 29 Aug after | 28.8 °C | 63 % | 43 km/h | 0.6 mm | Moderate 17 |
| 30 Aug after | 28.8 °C | 60 % | 40 km/h | 0.2 mm | High 22 |
Before and after, from space
Drag the line to compare the same ground before the fire and after it.
↔
Before · 4 Aug 2026
After · 27 Aug 2026
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 23 August 2026 the air beside the fire reached 61 µg/m³ of PM2.5. That day averaged 22: 1.4 times the WHO daily guideline (15).
PM2.5 peak61 µg/m³
Days over the guideline2 days
PM1064 µg/m³
Optical depth0.77
WHO 15
9 Aug12 Aug15 Aug18 Aug21 Aug
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 · 61Every 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
- 12,356 haMiddle Fly District25 September 2026 · 27 days · 15 km away
- 5,808 haMiddle Fly District25 September 2026 · 24 days · 16 km away
- 37,618 haMiddle Fly District 18 September 2026 · 51 days · 24 km away
- 8,354 haMiddle Fly District27 September 2026 · 30 days · 25 km away
- 4,581 haMiddle Fly District25 September 2026 · 17 days · 31 km away
- 9,847 haMiddle Fly District 15 September 2026 · 52 days · 35 km away
Frequently asked questions
- How long did the Middle Fly District fire last?
- According to the heat detections seen by satellite inside the perimeter, it burned from 11 August 2026 to 20 August 2026 (10 days). The perimeter dates it from 11 August 2026 to 13 August 2026.
- How much area did it burn?
- The perimeter GWIS (Copernicus) rebuilt from heat detections is 2,239 hectares (22.4 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Middle Fly District (2,254 ha, 0.0 %).
- What was the weather like?
- During the fire the temperature reached 32.1 °C, humidity dropped to 42 % and gusts hit 43 km/h. The fire danger index (FWI) reached 24, class High.
- Where does this data come from?
- From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Papua New Guinea (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 5 November 2026.
- Page published (2,239 ha).
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: GWIS (Copernicus), rebuilt from heat detections rather than mapped on imagery.
- Dates adjusted with the VIIRS detections inside the perimeter, which said 11 August 2026 to 13 August 2026. 61 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 comes from the Copernicus Global Wildfire Information System (GWIS), which rebuilds it from MODIS and VIIRS heat detections and publishes it under CC BY 4.0. It is not measured on imagery as in Europe, so it is an estimate. 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 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 from each country’s official figure.