How long did the Douglas fire last?

It burned between 21 June 2022 and 21 June 2022: 1 day, according to the start date recorded by United States agencies (MTBS / NIFC) and the heat detections seen by satellite.

How much area did it burn?

The official perimeter published by United States agencies (MTBS / NIFC) is 9,408 hectares (94.1 km²). Other tallies, such as daily incident reports, may give slightly different figures.

Which counties burned?

The fire only entered Yukon-Koyukuk (9,998 ha, 0.0 %).

What was the weather like?

During the fire the temperature reached 26.1 °C, humidity dropped to 27 % and gusts hit 44 km/h. The fire danger index (FWI) reached 19, class Moderate.

Where does this data come from?

From the official burnt perimeter of United States agencies (MTBS / NIFC, public domain), NASA FIRMS VIIRS hotspots and the administrative boundaries of United States. It is not an official report.

US · United States · 2022-06-21 → 2022-06-21

Douglas Fire, June 2022 Yukon-Koyukuk

Out · last detection 22 Jun 2022, 11:54 UTC

The fire started on 21 June 2022 in Yukon-Koyukuk, United States, and satellites saw it burning for 1 day. United States agencies (MTBS / NIFC) mapped an official burnt perimeter of 9,408 hectares, spread across a single county.

It is the 105th largest in Alaska since 2016 (of 472 with a page). Number 60 in United States in 2022, of 493.

Burnt area: 9,408ha; official perimeter (MTBS / NIFC)
Duration: 1day; 21 Jun 2022 – 21 Jun 2022
Municipalities hit: 1; counties
Started on: 21 Jun; 2022
Heat detections: 480; in a single hotspot: 233 MW
Danger at start: 19; Moderate · FWI index
Energy released: 185MW; sum of detected power

Play back 22 Jun 2022

HOTSPOTS BY DAY 21 Jun21 Jun

How it evolved, day by day

2122

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

The weather it burned in

26°high

44km/h · peak gust

27%lowest humidity

It had gone 8 days without rain (1 mm or more) when it started. Rain came after the fire: 1.2 mm on 13 Jul.

This area had burned before

No earlier perimeters overlap this fire since 2016, when the satellite record begins.

What happened to each town

Yukon-Koyukuk where it started

9,998 ha reached on 21 Jun

0.0 %

Burnt area inside each county, from crossing the official 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 Jun	20.6 °C	32 %	40 km/h	0.0 mm	Moderate 19
22 Jun after	16.7 °C	45 %	44 km/h	0.0 mm	Moderate 18
23 Jun after	14.4 °C	53 %	40 km/h	0.1 mm	Moderate 16
24 Jun after	17.2 °C	39 %	37 km/h	0.0 mm	Moderate 16
25 Jun after	21.7 °C	32 %	28 km/h	0.0 mm	Moderate 17
26 Jun after	21.5 °C	36 %	32 km/h	0.0 mm	Moderate 17
27 Jun after	20.4 °C	41 %	32 km/h	0.0 mm	Moderate 18
28 Jun after	17.3 °C	47 %	35 km/h	0.5 mm	Moderate 18
29 Jun after	19.6 °C	39 %	30 km/h	0.0 mm	Moderate 17
30 Jun after	21.5 °C	35 %	24 km/h	0.0 mm	Moderate 16
1 Jul after	24.8 °C	30 %	17 km/h	0.0 mm	Moderate 19
2 Jul after	26.1 °C	35 %	21 km/h	1.2 mm	Moderate 12
3 Jul after	23.2 °C	41 %	18 km/h	0.9 mm	Moderate 11
4 Jul after	23.1 °C	39 %	24 km/h	0.1 mm	Moderate 16
5 Jul after	21.5 °C	47 %	29 km/h	0.0 mm	Moderate 16
6 Jul after	24.4 °C	42 %	18 km/h	0.0 mm	Moderate 16
7 Jul after	21.1 °C	55 %	19 km/h	2.6 mm	Very low 4
8 Jul after	23.5 °C	35 %	17 km/h	0.2 mm	Low 9
9 Jul after	25.2 °C	27 %	17 km/h	0.0 mm	Moderate 17
10 Jul after	24.5 °C	43 %	19 km/h	1.1 mm	Low 10
11 Jul after	24.2 °C	49 %	29 km/h	1.7 mm	Low 8
12 Jul after	18.6 °C	47 %	43 km/h	0.2 mm	Moderate 14
13 Jul after	14.2 °C	42 %	39 km/h	1.2 mm	Low 9

Before and after, from space

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

↔

Before · 14 Jun 2022

After · 28 Jun 2022

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.

Detections table · 480Every 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 United States ›

Frequently asked questions

How long did the Douglas fire last?: It burned between 21 June 2022 and 21 June 2022: 1 day, according to the start date recorded by United States agencies (MTBS / NIFC) and the heat detections seen by satellite.
How much area did it burn?: The official perimeter published by United States agencies (MTBS / NIFC) is 9,408 hectares (94.1 km²). Other tallies, such as daily incident reports, may give slightly different figures.
Which counties burned?: The fire only entered Yukon-Koyukuk (9,998 ha, 0.0 %).
What was the weather like?: During the fire the temperature reached 26.1 °C, humidity dropped to 27 % and gusts hit 44 km/h. The fire danger index (FWI) reached 19, class Moderate.
Where does this data come from?: From the official burnt perimeter of United States agencies (MTBS / NIFC, public domain), NASA FIRMS VIIRS hotspots and the administrative boundaries of United States. 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: 911

Satellite cross-check

NASA FIRMS ↗
NIFC · Fire maps ↗

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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Where this data comes from

The perimeter is official and in the public domain. For past years it comes from MTBS (Monitoring Trends in Burn Severity), run by the U.S. Geological Survey and the USDA Forest Service, which map it on Landsat and Sentinel-2 imagery. For the current and last year it comes from WFIGS at the National Interagency Fire Center (NIFC): incident perimeters mapped by fire crews, aircraft and imagery. Heat detections come from the VIIRS sensors aboard Suomi-NPP and NOAA-20, distributed by NASA FIRMS at 375 m resolution. County boundaries come from geoBoundaries ADM2 (Public Domain). The area per county is computed by WorldFires by crossing the perimeter with those boundaries, so it may differ slightly from official figures.

Where it burned