How long did the Tailai County fire last?

According to the heat detections seen by satellite inside the perimeter, it burned from 25 October 2026 to 1 November 2026 (8 days). The perimeter dates it from 28 October 2026 to 1 November 2026.

How much area did it burn?

The perimeter GWIS (Copernicus) rebuilt from heat detections is 11,849 hectares (118.5 km²). It is an estimate: official national figures may differ.

Which municipalities burned?

The fire entered 2 municipalities: Tailai County (8,983 ha, 2.3 %); Dorbod-Mongol Autonomous County (2,888 ha, 0.5 %).

Is the Tailai County fire still active?

No fire detections since 1 Nov 2026, 05:33 UTC. A lack of detections is not an official extinction.

What was the weather like?

During the fire the temperature reached 11.0 °C, humidity dropped to 19 % and gusts hit 62 km/h. The fire danger index (FWI) reached 21, class Moderate.

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.

CN · China · 2026-10-25 → 2026-11-01

Tailai County fire, 25 October 2026 泰来县 · Tailai County, Dorbod-Mongol Autonomous County

Dying down · last detection 1 Nov 2026, 05:33 UTC

The fire started on 25 October 2026 in Tailai County, China, and satellites saw it burning for 8 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 11,849 hectares from heat detections, spread across 2 municipalities.

It is the 51th largest in Heilongjiang Province since 2016 (of 1915 with a page). Number 39 in China in 2026, of 1094.

Compare with…

Suggestions: Tailai County · 2025 Dorbod-Mongol Autonomous County · 2026 Dorbod-Mongol Autonomous County · 2024 Dorbod-Mongol Autonomous County · 2025

Is it still active?

No detections since 1 Nov 2026, 05:33 UTC. That usually means no flame is visible from space any more, although hotspots may remain. 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.

Burnt area: 11,849ha; GWIS perimeter (Copernicus)
Duration: 8days; 25 Oct 2026 – 1 Nov 2026
Municipalities hit: 2; counties
Started on: 25 Oct; 2026
Heat detections: 99; in a single hotspot: 35 MW
Danger at start: 12; Moderate · FWI index
Average daily power: 250MW; detected power per day, on average

HOTSPOTS BY DAY 25 Oct1 Nov

Play back 1 Nov 2026

How it evolved, day by day

25 Oct 27 Oct 28 Oct 29 Oct 30 Oct 31 Oct 1 Nov

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

The weather it burned in

11°high

62km/h · peak gust

19%lowest humidity

It had gone 6 days without rain (1 mm or more) when it started.

This area had burned before

13% of the perimeter overlaps earlier fires recorded since 2016: 295 ha in 2017, 580 ha in 2019, 809 ha in 2020, 166 ha in 2025. Part of it burned more than once, so the yearly figures add up to more than the 1,506 ha that had burned before.

166 ha Tailai County fire, October 2025 2,699 ha in total; the hectares shown are those it shares with this fire

How big is it?

It burned the equivalent of 7.5% of the area of London (118 km² against 1,583 km²).

London boundary: geoBoundaries · Office for National Statistics (Open Government Licence v3.0).

This compares size, not location: both shapes are at the same scale, north up, centred on each other.

What happened to each town

Tailai County 泰来县 where it started

8,983 ha reached on 25 Oct

2.3 %
Dorbod-Mongol Autonomous County 杜尔伯特蒙古族自治县

2,888 ha reached on 28 Oct

0.5 %

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) · forecast models, provisional until the ERA5 reanalysis arrives

Day	High	Min. humidity	Peak gust	Rain	Danger (FWI)
25 Oct	11.0 °C	23 %	31 km/h	0.0 mm	Moderate 12
26 Oct	8.8 °C	25 %	41 km/h	0.0 mm	Moderate 14
27 Oct	2.7 °C	19 %	62 km/h	0.0 mm	Moderate 21
28 Oct	3.7 °C	29 %	28 km/h	0.0 mm	Low 11
29 Oct	7.3 °C	32 %	35 km/h	0.0 mm	Moderate 12
30 Oct	3.5 °C	30 %	56 km/h	0.2 mm	Moderate 17
31 Oct	-1.0 °C	23 %	36 km/h	0.0 mm	Moderate 12
1 Nov	-1.3 °C	36 %	26 km/h	0.7 mm	Low 6
2 Nov after	1.3 °C	44 %	26 km/h	0.5 mm	Low 6

Before and after, from space

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

↔

Before · 18 Oct 2026

After · 2 Nov 2026

Before After

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 · Copernicus

On 28 October 2026 the air beside the fire reached 34 µg/m³ of PM2.5. That day averaged 20: 1.3 times the WHO daily guideline (15).

PM2.5 peak34 µg/m³

Days over the guideline2 days

PM1042 µg/m³

Optical depth0.45

WHO 15

26272829

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 · 99Every 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

All fires in China ›

Frequently asked questions

How long did the Tailai County fire last?: According to the heat detections seen by satellite inside the perimeter, it burned from 25 October 2026 to 1 November 2026 (8 days). The perimeter dates it from 28 October 2026 to 1 November 2026.
How much area did it burn?: The perimeter GWIS (Copernicus) rebuilt from heat detections is 11,849 hectares (118.5 km²). It is an estimate: official national figures may differ.
Which municipalities burned?: The fire entered 2 municipalities: Tailai County (8,983 ha, 2.3 %); Dorbod-Mongol Autonomous County (2,888 ha, 0.5 %).
Is the Tailai County fire still active?: No fire detections since 1 Nov 2026, 05:33 UTC. A lack of detections is not an official extinction.
What was the weather like?: During the fire the temperature reached 11.0 °C, humidity dropped to 19 % and gusts hit 62 km/h. The fire danger index (FWI) reached 21, class Moderate.
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 · Emergency number and official warnings ›

Satellite cross-check

NASA FIRMS ↗
GWIS · Copernicus ↗

History of this page · 7 Changes in area, dates, name, official record or merged pages, compared every night since 28 October 2026.

1 November 2026 Area: 8,930 → 11,748 ha.
31 October 2026 Area: 4,630 → 8,930 ha.
31 October 2026 Start date: 26 October 2026 → 25 October 2026.
31 October 2026 The page “Dorbod-Mongol Autonomous County, 28 October 2026” has been merged into this one: it was the same fire.
30 October 2026 Page published (2,756 ha).
30 October 2026 Area: 2,926 → 4,630 ha.
28 October 2026 Page published (2,926 ha).

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.

Report an error

What do you think is wrong?

Dates or duration Place or towns Burned area Name It was not a wildfire Same fire as another page Something else

What really happened?

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We will only use your email to reply about this report. Privacy. This is not an emergency service: if there is a fire now, call 119.

How we know this

Perimeter: GWIS (Copernicus), rebuilt from heat detections rather than mapped on imagery; 2 polygons grouped in this page.
Dates adjusted with the VIIRS detections inside the perimeter, which said 28 October 2026 to 1 November 2026. 99 Suomi-NPP VIIRS detections on those dates.
We have not matched this page with any official record.
Weather: ECMWF IFS model, provisional until the ERA5 reanalysis arrives.

How we build fire pages: methodology ›

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.