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Goat Rocks Fire, August 2022 Lewis

Out · last detection 21 Oct 2022, 10:51 UTC

The fire started on 9 August 2022 in Lewis, United States, and satellites saw it burning for 74 days. United States agencies (MTBS / NIFC) mapped an official burnt perimeter of 2,694 hectares, spread across a single county.

It is the 115th largest in Washington since 2016 (of 285 with a page). Number 161 in United States in 2022, of 493.

Compare with…

Suggestions: Miriam · 2018Wildcat · 2025Schneider Springs · 2021Norse Peak · 2017

Burnt area
2,694ha
official perimeter (MTBS / NIFC)
Duration
≈ 74days
9 Aug 2022 – 21 Oct 2022
Counties hit
1
counties
Started on
9 Aug
2022
Heat detections
435
in a single hotspot: 157 MW
Danger at start
9
Low · FWI index
Average daily power
157MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 9 Aug21 Oct
21 Oct 2022

How it evolved, day by day

2 Sept 2022 · 175 MW · 3 3 Sept 2022 · 5 MW · 4 9 Sept 2022 · 2,086 MW · 42 10 Sept 2022 · 886 MW · 108 11 Sept 2022 · 29 MW · 15 20 Sept 2022 · 2 MW · 2 21 Sept 2022 · 16 MW · 14 26 Sept 2022 · 42 MW · 15 27 Sept 2022 · 18 MW · 14 28 Sept 2022 · 2 MW · 2 1 Oct 2022 · 2 MW · 2 2 Oct 2022 · 7 MW · 7 3 Oct 2022 · 9 MW · 6 4 Oct 2022 · 12 MW · 3 5 Oct 2022 · 4 MW · 2 6 Oct 2022 · 49 MW · 8 7 Oct 2022 · 27 MW · 19 8 Oct 2022 · 11 MW · 10 9 Oct 2022 · 13 MW · 5 10 Oct 2022 · 4 MW · 4 13 Oct 2022 · 9 MW · 7 14 Oct 2022 · 9 MW · 2 15 Oct 2022 · 60 MW · 21 16 Oct 2022 · 341 MW · 22 17 Oct 2022 · 42 MW · 20 18 Oct 2022 · 112 MW · 17 19 Oct 2022 · 483 MW · 27 20 Oct 2022 · 75 MW · 21 21 Oct 2022 · 23 MW · 13
2 Sept 9 Sept 20 Sept 1 Oct 6 Oct 13 Oct 18 Oct

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

The weather it burned in

33°high
56km/h · peak gust
18%lowest humidity

It had gone 7 days without rain (1 mm or more) when it started. Rain came after the fire: 5.5 mm on 22 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 1.7% of the area of London (27 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. Lewis where it started
    2,689 ha reached on 2 Sept
    0.4 %

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 2020
Built-up area< 0.1 ha
Residents< 20

Inside the perimeter there was no noticeable built-up land and almost nobody lived there (GHSL 2020, 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)
9 Aug 27.4 °C 34 % 32 km/h 1.9 mm Low 9
10 Aug 22.4 °C 53 % 39 km/h 1.5 mm Low 7
11 Aug 25.9 °C 28 % 35 km/h 0.0 mm Moderate 18
12 Aug 23.5 °C 37 % 39 km/h 0.3 mm Moderate 20
13 Aug 20.5 °C 39 % 38 km/h 0.0 mm Moderate 20
14 Aug 23.9 °C 34 % 36 km/h 0.2 mm Moderate 21
15 Aug 26.8 °C 30 % 38 km/h 0.0 mm High 24
16 Aug 27.3 °C 25 % 35 km/h 0.0 mm High 27
17 Aug 32.6 °C 19 % 23 km/h 0.6 mm High 29
18 Aug 26.6 °C 29 % 30 km/h 0.1 mm High 29
19 Aug 24.2 °C 54 % 28 km/h 1.2 mm Low 11
20 Aug 23.1 °C 51 % 34 km/h 0.0 mm Moderate 14
21 Aug 26.2 °C 29 % 36 km/h 0.0 mm High 23
22 Aug 24.8 °C 33 % 38 km/h 0.0 mm High 24
23 Aug 24.6 °C 36 % 31 km/h 0.1 mm High 23
24 Aug 27.2 °C 27 % 27 km/h 0.2 mm High 25
25 Aug 26.7 °C 32 % 34 km/h 0.1 mm High 28
26 Aug 21.2 °C 50 % 49 km/h 0.2 mm High 23
27 Aug 12.8 °C 61 % 50 km/h 0.0 mm Moderate 18
28 Aug 22.6 °C 36 % 30 km/h 0.0 mm Moderate 19
29 Aug 27.8 °C 27 % 22 km/h 0.0 mm High 24
30 Aug 31.4 °C 18 % 23 km/h 0.0 mm High 32
31 Aug 26.8 °C 30 % 43 km/h 0.6 mm High 28
1 Sept 27.0 °C 31 % 27 km/h 0.0 mm High 25
2 Sept 29.9 °C 19 % 37 km/h 0.0 mm High 33
3 Sept 20.2 °C 44 % 42 km/h 0.0 mm High 26
4 Sept 22.7 °C 36 % 45 km/h 0.0 mm High 26
5 Sept 21.9 °C 28 % 40 km/h 0.0 mm High 25
6 Sept 28.0 °C 19 % 30 km/h 0.0 mm High 29
7 Sept 22.1 °C 30 % 50 km/h 0.0 mm High 33
8 Sept 20.9 °C 22 % 34 km/h 0.0 mm High 30
9 Sept 21.6 °C 22 % 50 km/h 0.0 mm High 33
10 Sept 22.5 °C 21 % 55 km/h 0.0 mm High 35
11 Sept 24.3 °C 35 % 29 km/h 0.1 mm High 26
12 Sept 19.8 °C 55 % 33 km/h 2.6 mm Very low 4
13 Sept 18.0 °C 47 % 31 km/h 1.4 mm Low 6
14 Sept 15.2 °C 62 % 26 km/h 0.7 mm Low 6
15 Sept 15.0 °C 62 % 32 km/h 0.8 mm Low 7
16 Sept 11.8 °C 60 % 44 km/h 0.2 mm Low 9
17 Sept 15.9 °C 36 % 22 km/h 0.0 mm Moderate 12
18 Sept 17.7 °C 48 % 34 km/h 3.1 mm Very low 4
19 Sept 21.6 °C 36 % 33 km/h 0.0 mm Low 9
20 Sept 20.2 °C 23 % 37 km/h 0.0 mm Moderate 19
21 Sept 19.4 °C 29 % 33 km/h 0.0 mm High 21
22 Sept 15.0 °C 55 % 54 km/h 0.2 mm Moderate 19
23 Sept 18.0 °C 40 % 36 km/h 0.0 mm Moderate 17
24 Sept 22.8 °C 32 % 20 km/h 0.0 mm Moderate 19
25 Sept 24.8 °C 27 % 22 km/h 0.0 mm High 23
26 Sept 25.3 °C 26 % 26 km/h 0.0 mm High 25
27 Sept 24.1 °C 31 % 35 km/h 0.0 mm High 25
28 Sept 15.1 °C 58 % 41 km/h 3.6 mm Very low 2
29 Sept 14.1 °C 61 % 43 km/h 1.2 mm Very low 4
30 Sept 19.7 °C 46 % 27 km/h 0.0 mm Low 6
1 Oct 20.9 °C 43 % 49 km/h 0.0 mm Moderate 14
2 Oct 23.1 °C 28 % 26 km/h 0.0 mm Moderate 18
3 Oct 22.6 °C 27 % 27 km/h 0.0 mm Moderate 21
4 Oct 19.3 °C 41 % 26 km/h 0.0 mm Moderate 19
5 Oct 20.3 °C 44 % 22 km/h 0.0 mm Moderate 18
6 Oct 22.1 °C 35 % 29 km/h 0.0 mm Moderate 20
7 Oct 22.6 °C 30 % 19 km/h 0.0 mm Moderate 21
8 Oct 22.7 °C 32 % 22 km/h 0.0 mm Moderate 20
9 Oct 22.2 °C 35 % 25 km/h 0.0 mm Moderate 20
10 Oct 17.8 °C 45 % 56 km/h 0.4 mm High 22
11 Oct 20.2 °C 28 % 36 km/h 0.0 mm High 22
12 Oct 22.2 °C 29 % 22 km/h 0.0 mm High 22
13 Oct 22.8 °C 26 % 24 km/h 0.0 mm High 24
14 Oct 22.4 °C 24 % 27 km/h 0.0 mm High 24
15 Oct 20.1 °C 35 % 46 km/h 0.0 mm High 27
16 Oct 21.7 °C 23 % 43 km/h 0.0 mm High 28
17 Oct 20.8 °C 30 % 21 km/h 0.0 mm High 25
18 Oct 20.8 °C 28 % 20 km/h 0.0 mm High 24
19 Oct 21.3 °C 27 % 24 km/h 0.0 mm High 24
20 Oct 14.9 °C 35 % 48 km/h 0.4 mm High 26
21 Oct 5.8 °C 68 % 55 km/h 11.2 mm Very low 0
22 Oct after 2.3 °C 77 % 38 km/h 5.5 mm Very low 0

Before and after, from space

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

Before · 2 Aug 2022
After · 28 Oct 2022

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 10 August 2022 the air beside the fire reached 12 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).

PM2.5 peak12 µg/m³
Days over the guideline0 days
PM1018 µg/m³
Optical depth0.25
789101112
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 · 435Every 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 Goat Rocks Fire last?
The official perimeter only gives the start date (9 August 2022). The end comes from the heat detections inside the perimeter: it burned until 21 October 2022 (74 days from 9 August 2022), 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 2,694 hectares (26.9 km²). Other tallies, such as daily incident reports, may give slightly different figures.
Which counties burned?
The fire only entered Lewis (2,689 ha, 0.4 %).
What was the weather like?
During the fire the temperature reached 32.6 °C, humidity dropped to 18 % and gusts hit 56 km/h. The fire danger index (FWI) reached 35, class 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.

Report an error
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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. 435 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 2020, 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.