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Jack Fire, July 2021 Douglas

Out · last detection 7 Jul 2021, 21:06 UTC

The fire started on 6 July 2021 in Douglas, United States, and satellites saw it burning for 1 day. United States agencies (MTBS / NIFC) mapped an official burnt perimeter of 13,649 hectares, spread across a single county.

It is the 54th largest in Oregon since 2016 (of 327 with a page). Number 41 in United States in 2021, of 385.

Burnt area
13,649ha
official perimeter (MTBS / NIFC)
Duration
1day
6 Jul 2021 – 6 Jul 2021
Municipalities hit
1
counties
Started on
6 Jul
2021
Heat detections
3,371
in a single hotspot: 1,176 MW
Danger at start
28
High · FWI index
Energy released
3.8GW
sum of detected power

Where it burned

7 Jul 2021
HOTSPOTS BY DAY 6 Jul6 Jul

How it evolved, day by day

67

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

The weather it burned in

35°high
61km/h · peak gust
14%lowest humidity

It had gone 13 days without rain (1 mm or more) when it started. Rain came after the fire: 29.1 mm on 27 Sept.

This area had burned before

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

What happened to each town

  1. Douglas where it started
    13,636 ha reached on 6 Jul
    1.0 %

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)
6 Jul 29.8 °C 25 % 42 km/h 0.0 mm High 28
7 Jul after 25.5 °C 28 % 38 km/h 0.0 mm High 27
8 Jul after 25.2 °C 29 % 40 km/h 0.0 mm High 27
9 Jul after 30.5 °C 21 % 35 km/h 0.0 mm High 29
10 Jul after 29.9 °C 23 % 42 km/h 0.0 mm High 32
11 Jul after 29.6 °C 22 % 46 km/h 0.0 mm High 32
12 Jul after 29.0 °C 21 % 46 km/h 0.0 mm High 34
13 Jul after 28.5 °C 27 % 48 km/h 0.0 mm High 35
14 Jul after 27.5 °C 28 % 43 km/h 0.0 mm High 33
15 Jul after 25.6 °C 30 % 44 km/h 0.0 mm High 31
16 Jul after 24.6 °C 31 % 41 km/h 0.0 mm High 30
17 Jul after 26.2 °C 30 % 42 km/h 0.0 mm High 30
18 Jul after 28.5 °C 27 % 40 km/h 0.0 mm High 30
19 Jul after 27.4 °C 29 % 43 km/h 0.0 mm High 31
20 Jul after 25.2 °C 33 % 43 km/h 0.0 mm High 31
21 Jul after 22.5 °C 28 % 41 km/h 0.0 mm High 31
22 Jul after 25.5 °C 18 % 41 km/h 0.0 mm High 33
23 Jul after 28.8 °C 17 % 44 km/h 0.0 mm Very high 38
24 Jul after 29.4 °C 23 % 43 km/h 0.0 mm High 38
25 Jul after 30.0 °C 23 % 45 km/h 0.0 mm Very high 39
26 Jul after 29.2 °C 25 % 42 km/h 0.0 mm High 38
27 Jul after 24.4 °C 39 % 30 km/h 0.7 mm Moderate 20
28 Jul after 31.5 °C 24 % 35 km/h 0.1 mm High 31
29 Jul after 32.0 °C 23 % 38 km/h 1.8 mm High 23
30 Jul after 28.4 °C 32 % 34 km/h 0.0 mm High 28
31 Jul after 27.8 °C 35 % 33 km/h 0.3 mm High 26
1 Aug after 30.6 °C 23 % 34 km/h 1.1 mm High 26
2 Aug after 29.9 °C 26 % 47 km/h 0.0 mm High 33
3 Aug after 28.9 °C 29 % 39 km/h 0.0 mm High 31
4 Aug after 30.4 °C 22 % 40 km/h 0.0 mm High 35
5 Aug after 21.6 °C 45 % 45 km/h 1.4 mm Moderate 13
6 Aug after 27.3 °C 29 % 38 km/h 0.0 mm High 25
7 Aug after 27.9 °C 36 % 45 km/h 0.1 mm High 28
8 Aug after 23.5 °C 26 % 44 km/h 1.0 mm High 23
9 Aug after 27.8 °C 24 % 42 km/h 0.0 mm High 33
10 Aug after 31.1 °C 18 % 39 km/h 0.0 mm High 38
11 Aug after 34.7 °C 16 % 36 km/h 0.0 mm Very high 42
12 Aug after 34.1 °C 22 % 42 km/h 0.0 mm Very high 44
13 Aug after 30.6 °C 31 % 39 km/h 0.4 mm High 38
14 Aug after 31.1 °C 31 % 40 km/h 0.0 mm High 34
15 Aug after 31.6 °C 31 % 39 km/h 0.0 mm High 35
16 Aug after 27.6 °C 28 % 46 km/h 0.0 mm Very high 38
17 Aug after 17.8 °C 38 % 44 km/h 0.8 mm High 22
18 Aug after 23.3 °C 30 % 48 km/h 0.0 mm High 28
19 Aug after 24.3 °C 36 % 48 km/h 0.0 mm High 28
20 Aug after 22.0 °C 36 % 42 km/h 0.0 mm High 28
21 Aug after 20.1 °C 36 % 37 km/h 0.0 mm High 26
22 Aug after 21.5 °C 35 % 39 km/h 0.0 mm High 27
23 Aug after 21.8 °C 21 % 40 km/h 0.0 mm High 31
24 Aug after 23.7 °C 24 % 38 km/h 0.0 mm High 30
25 Aug after 22.5 °C 29 % 38 km/h 0.3 mm High 32
26 Aug after 24.3 °C 31 % 41 km/h 0.0 mm High 32
27 Aug after 23.0 °C 32 % 42 km/h 0.0 mm High 34
28 Aug after 28.3 °C 19 % 44 km/h 0.0 mm Very high 39
29 Aug after 26.8 °C 26 % 40 km/h 0.0 mm High 36
30 Aug after 21.5 °C 31 % 39 km/h 0.0 mm High 33
31 Aug after 20.9 °C 24 % 41 km/h 0.0 mm High 34
1 Sept after 22.5 °C 22 % 42 km/h 0.0 mm High 34
2 Sept after 23.9 °C 18 % 41 km/h 0.0 mm High 36
3 Sept after 25.7 °C 19 % 39 km/h 0.0 mm High 36
4 Sept after 28.0 °C 14 % 35 km/h 0.0 mm Very high 39
5 Sept after 27.6 °C 21 % 37 km/h 0.0 mm Very high 39
6 Sept after 28.7 °C 27 % 33 km/h 0.0 mm High 36
7 Sept after 29.5 °C 23 % 43 km/h 0.0 mm Very high 40
8 Sept after 28.4 °C 21 % 38 km/h 0.0 mm High 37
9 Sept after 24.5 °C 37 % 35 km/h 0.0 mm High 31
10 Sept after 17.7 °C 69 % 32 km/h 12.3 mm Very low 0
11 Sept after 24.0 °C 27 % 34 km/h 0.0 mm Low 7
12 Sept after 22.4 °C 40 % 40 km/h 0.0 mm Moderate 16
13 Sept after 21.8 °C 27 % 40 km/h 0.0 mm High 23
14 Sept after 25.3 °C 21 % 38 km/h 0.0 mm High 29
15 Sept after 21.5 °C 32 % 42 km/h 0.0 mm High 30
16 Sept after 23.2 °C 20 % 35 km/h 0.0 mm High 30
17 Sept after 24.9 °C 17 % 42 km/h 0.0 mm High 34
18 Sept after 14.8 °C 44 % 61 km/h 46.5 mm Very low 0
19 Sept after 13.1 °C 56 % 55 km/h 14.0 mm Very low 0
20 Sept after 21.9 °C 31 % 27 km/h 0.0 mm Very low 2
21 Sept after 26.1 °C 21 % 33 km/h 0.0 mm Moderate 12
22 Sept after 20.1 °C 45 % 37 km/h 0.0 mm Moderate 12
23 Sept after 24.1 °C 33 % 28 km/h 0.0 mm Moderate 13
24 Sept after 27.7 °C 24 % 32 km/h 0.0 mm Moderate 18
25 Sept after 23.6 °C 36 % 32 km/h 0.0 mm Moderate 16
26 Sept after 21.3 °C 33 % 42 km/h 0.0 mm Moderate 18
27 Sept after 13.6 °C 62 % 47 km/h 29.1 mm Very low 0

Before and after, from space

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

Before · 29 Jun 2021
After · 13 Jul 2021

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 · 3,371Every 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 timeSatelliteFRP (MW)LatLon

Other fires nearby

All fires in United States ›

Frequently asked questions

How long did the Jack Fire fire last?
It burned between 6 July 2021 and 6 July 2021: 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 13,649 hectares (136.5 km²). Other tallies, such as daily incident reports, may give slightly different figures.
Which counties burned?
The fire only entered Douglas (13,636 ha, 1.0 %).
What was the weather like?
During the fire the temperature reached 34.7 °C, humidity dropped to 14 % and gusts hit 61 km/h. The fire danger index (FWI) reached 44, class Very high.
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

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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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 911.

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.