How long did the Ubinsky District fire last?

GWIS (Copernicus) dates it between 28 April 2023 and 29 April 2023: 2 days 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 3,277 hectares (32.8 km²). It is an estimate: official national figures may differ.

Which municipalities burned?

The fire only entered Ubinsky District (3,263 ha, 0.2 %).

What was the weather like?

During the fire the temperature reached 18.5 °C, humidity dropped to 32 % and gusts hit 49 km/h. The fire danger index (FWI) reached 8, class Low.

Where does this data come from?

From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Russia (geoBoundaries). It is not an official report.

RU · Russia · 2023-04-28 → 2023-04-29

Ubinsky District fire, 28 April 2023 Ubinsky District

Out · last detection 29 Apr 2023, 07:46 UTC

The fire started on 28 April 2023 in Ubinsky District, Russia, and satellites saw it burning for 2 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 3,277 hectares from heat detections, spread across a single municipality.

It is the 137th largest in Novosibirsk Oblast since 2016 (of 162 with a page). Number 398 in Russia in 2023, of 452.

Burnt area: 3,277ha; GWIS perimeter (Copernicus)
Duration: 2days; 28 Apr 2023 – 29 Apr 2023
Municipalities hit: 1; districts
Started on: 28 Apr; 2023
Heat detections: 156; in a single hotspot: 59 MW
Danger at start: 4; Very low · FWI index
Energy released: 1.6GW; sum of detected power

Play back 29 Apr 2023

HOTSPOTS BY DAY 28 Apr29 Apr

How it evolved, day by day

2829

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

The weather it burned in

18°high

49km/h · peak gust

32%lowest humidity

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

This area had burned before

55% of the perimeter overlaps earlier fires recorded since 2016: 364 ha in 2017, 64 ha in 2018, 1,472 ha in 2022. Part of it burned more than once, so the yearly figures add up to more than the 1,797 ha that had burned before.

1,353 ha Ubinsky District fire, April 2022 6,075 ha in total; the hectares shown are those it shares with this fire

What happened to each town

Ubinsky District where it started

3,263 ha reached on 28 Apr

0.2 %

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 Apr	6.9 °C	34 %	28 km/h	0.0 mm	Very low 4
22 Apr	9.2 °C	32 %	28 km/h	0.0 mm	Very low 4
23 Apr	10.5 °C	38 %	31 km/h	0.2 mm	Low 6
24 Apr	10.3 °C	49 %	49 km/h	1.7 mm	Very low 2
25 Apr	6.3 °C	37 %	49 km/h	0.4 mm	Very low 4
26 Apr	15.4 °C	42 %	25 km/h	1.8 mm	Very low 1
27 Apr	16.0 °C	41 %	29 km/h	0.0 mm	Very low 4
28 Apr	18.5 °C	36 %	39 km/h	0.0 mm	Low 8
29 Apr	7.6 °C	35 %	32 km/h	0.0 mm	Low 7
30 Apr after	2.8 °C	53 %	38 km/h	0.0 mm	Low 7
1 May after	1.6 °C	65 %	40 km/h	0.6 mm	Very low 5
2 May after	5.4 °C	52 %	30 km/h	0.3 mm	Very low 4
3 May after	11.3 °C	27 %	18 km/h	0.0 mm	Low 5
4 May after	12.7 °C	30 %	26 km/h	0.0 mm	Low 8
5 May after	19.3 °C	22 %	31 km/h	0.0 mm	Moderate 12
6 May after	25.4 °C	16 %	19 km/h	0.0 mm	Moderate 16
7 May after	25.8 °C	10 %	18 km/h	0.0 mm	Moderate 20
8 May after	20.9 °C	30 %	34 km/h	0.0 mm	Moderate 18
9 May after	9.8 °C	39 %	26 km/h	0.0 mm	Moderate 13

Before and after, from space

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

↔

Before · 21 Apr 2023

After · 6 May 2023

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 April 2023 the air beside the fire reached 27 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).

PM2.5 peak27 µg/m³

Days over the guideline0 days

PM1039 µg/m³

Optical depth0.68

WHO 15

262728293012

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 · 156Every 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 Russia ›

Frequently asked questions

How long did the Ubinsky District fire last?: GWIS (Copernicus) dates it between 28 April 2023 and 29 April 2023: 2 days 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 3,277 hectares (32.8 km²). It is an estimate: official national figures may differ.
Which municipalities burned?: The fire only entered Ubinsky District (3,263 ha, 0.2 %).
What was the weather like?: During the fire the temperature reached 18.5 °C, humidity dropped to 32 % and gusts hit 49 km/h. The fire danger index (FWI) reached 8, class Low.
Where does this data come from?: From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Russia (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: 112

Satellite cross-check

NASA FIRMS ↗
GWIS · Copernicus ↗

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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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 112.

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 (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.

Where it burned