Huma County fire, 21 October 2021 Huma County
The fire started on 21 October 2021 in Huma County, China, and satellites saw it burning for 1 day. Copernicus’s global GWIS system rebuilt a burnt perimeter of 1,199 hectares from heat detections, spread across a single municipality.
It is the 1323th largest in Heilongjiang Province since 2016 (of 1751 with a page). Number 180 in China in 2021, of 261.
We have the GWIS 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
- 1,199ha
- GWIS perimeter (Copernicus)
- Duration
- 1day
- 21 Oct 2021 – 21 Oct 2021
- Municipalities hit
- 1
- counties
- Started on
- 21 Oct
- 2021
- Danger at start
- 3
- Very low · FWI index
Where it burned
The weather it burned in
It had gone 6 days without rain (1 mm or more) when it started.
This area had burned before
31% of the perimeter overlaps earlier fires recorded since 2016: 375 ha in 2017.
What happened to each town
-
Huma County where it started1,215 ha0.1 %
Burnt area inside each municipality, from crossing the GWIS 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.
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) |
|---|---|---|---|---|---|
| 21 Oct | 8.5 °C | 33 % | 34 km/h | 0.0 mm | Very low 3 |
| 22 Oct after | 11.9 °C | 32 % | 27 km/h | 0.0 mm | Very low 4 |
| 23 Oct after | 12.9 °C | 32 % | 30 km/h | 0.0 mm | Very low 5 |
| 24 Oct after | 12.6 °C | 30 % | 17 km/h | 0.0 mm | Very low 4 |
| 25 Oct after | 12.2 °C | 30 % | 17 km/h | 0.0 mm | Very low 5 |
| 26 Oct after | 9.8 °C | 33 % | 26 km/h | 0.0 mm | Very low 5 |
| 27 Oct after | 7.4 °C | 49 % | 28 km/h | 0.2 mm | Very low 5 |
| 28 Oct after | 10.3 °C | 32 % | 23 km/h | 0.0 mm | Very low 5 |
| 29 Oct after | 8.5 °C | 40 % | 33 km/h | 0.0 mm | Low 6 |
| 30 Oct after | 0.5 °C | 27 % | 39 km/h | 0.0 mm | Low 6 |
| 31 Oct after | 3.1 °C | 24 % | 19 km/h | 0.0 mm | Very low 5 |
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.
Other fires nearby
Frequently asked questions
- How long did the Huma County fire last?
- GWIS (Copernicus) dates it between 21 October 2021 and 21 October 2021: 1 day between the first and last heat detection of the perimeter.
- How much area did it burn?
- The perimeter GWIS (Copernicus) rebuilt from heat detections is 1,199 hectares (12.0 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Huma County (1,215 ha, 0.1 %).
- What was the weather like?
- During the fire the temperature reached 8.5 °C, humidity dropped to 33 % and gusts hit 34 km/h. The fire danger index (FWI) reached 3, class Very low.
- Where does this data come from?
- From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of China (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: 119
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 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 ADM3 (Open Data Commons Open Database License 1.0). 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.