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Diamond Creek Fire, July 2017 Okanogan

Out · last detection 6 Oct 2017, 11:08 UTC

The fire started on 23 July 2017 in Okanogan, United States, and satellites saw it burning for 76 days. United States agencies (MTBS / NIFC) mapped an official burnt perimeter of 47,599 hectares, spread across a single county.

It is the 8th largest in Washington since 2016 (of 285 with a page). Number 11 in United States in 2017, of 619.

Compare with…

Suggestions: Okanagan-Similkameen G · 2017Okanagan-Similkameen H · 2026Ptarmigan · 2026Parks · 2022

Burnt area
47,599ha
official perimeter (MTBS / NIFC)
Duration
≈ 76days
23 Jul 2017 – 6 Oct 2017
Counties hit
1
counties
Started on
23 Jul
2017
Heat detections
9,675
in a single hotspot: 2,008 MW
Danger at start
16
Moderate · FWI index
Average daily power
3.8GW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 23 Jul6 Oct
6 Oct 2017

How it evolved, day by day

24 Jul 2017 · 33 MW · 14 25 Jul 2017 · 62 MW · 11 26 Jul 2017 · 101 MW · 14 27 Jul 2017 · 1,107 MW · 51 28 Jul 2017 · 3,670 MW · 198 29 Jul 2017 · 2,372 MW · 120 30 Jul 2017 · 578 MW · 93 31 Jul 2017 · 363 MW · 57 1 Aug 2017 · 214 MW · 45 2 Aug 2017 · 2,722 MW · 84 3 Aug 2017 · 566 MW · 100 4 Aug 2017 · 1,274 MW · 73 5 Aug 2017 · 399 MW · 69 6 Aug 2017 · 2,614 MW · 75 7 Aug 2017 · 516 MW · 76 8 Aug 2017 · 1,646 MW · 212 9 Aug 2017 · 507 MW · 155 10 Aug 2017 · 3,913 MW · 126 11 Aug 2017 · 12,500 MW · 300 12 Aug 2017 · 3,814 MW · 270 13 Aug 2017 · 108 MW · 19 14 Aug 2017 · 21 MW · 10 15 Aug 2017 · 145 MW · 23 16 Aug 2017 · 354 MW · 60 17 Aug 2017 · 384 MW · 51 18 Aug 2017 · 336 MW · 34 19 Aug 2017 · 272 MW · 34 20 Aug 2017 · 38 MW · 13 21 Aug 2017 · 237 MW · 29 22 Aug 2017 · 596 MW · 83 23 Aug 2017 · 306 MW · 69 24 Aug 2017 · 47 MW · 33 25 Aug 2017 · 6 MW · 3 26 Aug 2017 · 252 MW · 28 27 Aug 2017 · 1,242 MW · 54 28 Aug 2017 · 5,573 MW · 122 29 Aug 2017 · 36,219 MW · 525 30 Aug 2017 · 14,990 MW · 733 31 Aug 2017 · 8,376 MW · 384 1 Sept 2017 · 13,758 MW · 372 2 Sept 2017 · 7,008 MW · 408 3 Sept 2017 · 28,421 MW · 693 4 Sept 2017 · 13,679 MW · 1074 5 Sept 2017 · 2,818 MW · 400 6 Sept 2017 · 2,997 MW · 340 7 Sept 2017 · 3,558 MW · 304 8 Sept 2017 · 348 MW · 90 9 Sept 2017 · 35 MW · 14 10 Sept 2017 · 2,223 MW · 101 11 Sept 2017 · 37,345 MW · 393 12 Sept 2017 · 3,848 MW · 345 13 Sept 2017 · 970 MW · 195 14 Sept 2017 · 781 MW · 141 15 Sept 2017 · 1,054 MW · 175 16 Sept 2017 · 1,041 MW · 68 17 Sept 2017 · 583 MW · 96 18 Sept 2017 · 17 MW · 11 26 Sept 2017 · 1 MW · 1 28 Sept 2017 · 15 MW · 2 4 Oct 2017 · 1 MW · 1 6 Oct 2017 · 1 MW · 1
24 Jul 2 Aug 11 Aug 20 Aug 29 Aug 7 Sept 11 Sept 16 Sept

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

The weather it burned in

23°high
66km/h · peak gust
11%lowest humidity

It had gone 2 days without rain (1 mm or more) when it started. Rain came after the fire: 2.5 mm on 7 Oct.

This area had burned before

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

How big is it?

10 km
It burned the equivalent of 30% of the area of London (476 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 county

  1. Okanogan where it started
    37,046 ha reached on 24 Jul
    2.7 %

Burnt area inside each county, from crossing the official 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.

People and buildings inside the perimeter

GHSL 2015
Built-up area< 0.1 ha
Residents< 20

Inside the perimeter there was no noticeable built-up land and almost nobody lived there (GHSL 2015, satellite-based estimate).

This is an estimate on 100 m cells, made from satellite imagery and census data: it does not mean that homes burned or that anyone was harmed. The perimeter also contains land that never burned.

Source: Global Human Settlement Layer (GHS-BUILT-S and GHS-POP R2023A), European Commission Joint Research Centre (JRC), © European Union, CC BY 4.0. Sum inside the perimeter computed by WorldFires. human-settlement.emergency.copernicus.eu

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)
23 Jul 16.3 °C 37 % 55 km/h 0.0 mm Moderate 16
24 Jul 15.5 °C 25 % 37 km/h 0.0 mm Moderate 17
25 Jul 19.4 °C 20 % 38 km/h 0.0 mm High 23
26 Jul 19.0 °C 25 % 48 km/h 0.4 mm High 23
27 Jul 16.6 °C 31 % 48 km/h 0.0 mm High 24
28 Jul 19.2 °C 16 % 45 km/h 0.0 mm High 29
29 Jul 20.1 °C 20 % 51 km/h 0.0 mm High 29
30 Jul 18.2 °C 25 % 48 km/h 0.0 mm High 28
31 Jul 20.4 °C 19 % 37 km/h 0.0 mm High 26
1 Aug 20.2 °C 23 % 38 km/h 0.0 mm High 27
2 Aug 21.5 °C 20 % 30 km/h 0.0 mm High 26
3 Aug 23.1 °C 18 % 48 km/h 0.0 mm High 31
4 Aug 19.0 °C 21 % 44 km/h 0.0 mm High 31
5 Aug 18.6 °C 21 % 38 km/h 0.0 mm High 30
6 Aug 21.0 °C 21 % 36 km/h 0.0 mm High 30
7 Aug 21.3 °C 15 % 36 km/h 0.0 mm High 31
8 Aug 21.2 °C 19 % 26 km/h 0.0 mm High 31
9 Aug 22.9 °C 19 % 32 km/h 0.5 mm High 29
10 Aug 22.7 °C 14 % 37 km/h 0.0 mm High 34
11 Aug 21.8 °C 16 % 41 km/h 0.0 mm High 35
12 Aug 19.3 °C 28 % 41 km/h 0.1 mm High 30
13 Aug 10.8 °C 49 % 57 km/h 2.4 mm Low 6
14 Aug 13.1 °C 30 % 41 km/h 0.0 mm Low 10
15 Aug 15.3 °C 27 % 46 km/h 0.0 mm Moderate 20
16 Aug 15.0 °C 36 % 56 km/h 0.0 mm High 22
17 Aug 17.9 °C 25 % 48 km/h 0.0 mm High 26
18 Aug 14.0 °C 38 % 63 km/h 0.0 mm High 27
19 Aug 12.5 °C 32 % 42 km/h 0.0 mm High 23
20 Aug 12.7 °C 39 % 45 km/h 0.0 mm High 22
21 Aug 19.4 °C 24 % 25 km/h 0.0 mm High 22
22 Aug 21.6 °C 20 % 49 km/h 0.0 mm High 32
23 Aug 17.2 °C 28 % 48 km/h 0.0 mm High 30
24 Aug 9.0 °C 33 % 54 km/h 0.0 mm High 27
25 Aug 13.6 °C 20 % 38 km/h 0.0 mm High 25
26 Aug 19.6 °C 22 % 38 km/h 0.0 mm High 28
27 Aug 22.8 °C 19 % 36 km/h 0.0 mm High 31
28 Aug 22.9 °C 11 % 40 km/h 0.0 mm High 37
29 Aug 22.6 °C 16 % 53 km/h 0.3 mm Very high 39
30 Aug 16.2 °C 23 % 51 km/h 0.0 mm High 37
31 Aug 14.7 °C 27 % 50 km/h 0.0 mm High 33
1 Sept 18.9 °C 29 % 53 km/h 0.0 mm High 34
2 Sept 21.0 °C 21 % 53 km/h 0.0 mm High 34
3 Sept 21.2 °C 17 % 52 km/h 0.0 mm High 36
4 Sept 22.8 °C 17 % 23 km/h 0.0 mm High 30
5 Sept 19.9 °C 24 % 30 km/h 0.0 mm High 30
6 Sept 22.2 °C 22 % 28 km/h 0.0 mm High 29
7 Sept 20.6 °C 28 % 34 km/h 0.2 mm High 28
8 Sept 13.6 °C 58 % 36 km/h 2.7 mm Very low 4
9 Sept 8.4 °C 53 % 58 km/h 0.2 mm Low 8
10 Sept 11.8 °C 33 % 40 km/h 0.0 mm Moderate 12
11 Sept 18.4 °C 24 % 60 km/h 0.0 mm High 26
12 Sept 13.5 °C 35 % 55 km/h 0.0 mm High 24
13 Sept 8.2 °C 27 % 44 km/h 0.0 mm High 22
14 Sept 8.8 °C 21 % 44 km/h 0.0 mm High 23
15 Sept 9.5 °C 18 % 28 km/h 0.0 mm High 22
16 Sept 10.0 °C 22 % 32 km/h 0.0 mm High 23
17 Sept 8.0 °C 32 % 57 km/h 5.8 mm Very low 3
18 Sept 2.4 °C 43 % 40 km/h 3.0 mm Very low 0
19 Sept 1.2 °C 62 % 29 km/h 2.4 mm Very low 0
20 Sept 1.7 °C 42 % 38 km/h 2.4 mm Very low 0
21 Sept 1.8 °C 57 % 43 km/h 4.8 mm Very low 0
22 Sept 3.9 °C 47 % 29 km/h 0.0 mm Very low 0
23 Sept 5.2 °C 53 % 28 km/h 0.0 mm Very low 1
24 Sept 8.4 °C 51 % 34 km/h 0.0 mm Very low 3
25 Sept 6.7 °C 65 % 27 km/h 1.0 mm Very low 2
26 Sept 12.9 °C 37 % 26 km/h 0.0 mm Very low 4
27 Sept 14.9 °C 32 % 19 km/h 0.0 mm Low 7
28 Sept 15.3 °C 31 % 41 km/h 0.0 mm Moderate 12
29 Sept 10.0 °C 46 % 47 km/h 4.5 mm Very low 1
30 Sept 0.8 °C 61 % 47 km/h 1.1 mm Very low 1
1 Oct 1.7 °C 47 % 50 km/h 2.8 mm Very low 0
2 Oct 1.9 °C 45 % 50 km/h 0.5 mm Very low 1
3 Oct 7.0 °C 31 % 27 km/h 0.0 mm Very low 2
4 Oct 8.5 °C 25 % 20 km/h 0.0 mm Very low 4
5 Oct 11.1 °C 21 % 27 km/h 0.0 mm Low 8
6 Oct 2.7 °C 36 % 66 km/h 5.5 mm Very low 0
7 Oct after 0.5 °C 61 % 68 km/h 2.5 mm Very low 0

Before and after, from space

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

Before · 16 Jul 2017
After · 13 Oct 2017

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 · 9,675Every 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 Diamond Creek Fire last?
The official perimeter only gives the start date (23 July 2017). The end comes from the heat detections inside the perimeter: it burned until 6 October 2017 (76 days from 23 July 2017), the last day with detections before more than 10 days in a row without any, so it is approximate.
How much area did it burn?
The official perimeter published by United States agencies (MTBS / NIFC) is 47,599 hectares (476.0 km²). Other tallies, such as daily incident reports, may give slightly different figures.
Which counties burned?
The fire only entered Okanogan (37,046 ha, 2.7 %).
What was the weather like?
During the fire the temperature reached 23.1 °C, humidity dropped to 11 % and gusts hit 66 km/h. The fire danger index (FWI) reached 39, 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 · Emergency number and official warnings ›

Satellite cross-check

History of this page Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.

No changes since 24 October 2026.

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.

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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.

How we know this
  • Perimeter: MTBS (US Geological Survey and US Forest Service), official.
  • The official perimeter has no end date: the end is the last day with VIIRS detections inside the perimeter before a gap of more than 10 days (150 days at most), so it is approximate. 9,675 Suomi-NPP VIIRS detections on those dates.
  • We have not matched this page with any official record.
  • Weather: Copernicus ERA5 reanalysis at the fire location, in cells of about 25 km.
  • Built-up area and population come from the JRC Global Human Settlement Layer (epoch 2015, 100 m cells), summed inside the perimeter: an estimate of what was there, not a damage count.

How we build fire pages: methodology ›

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.