How long did the Hope fire last?

According to the heat detections seen by satellite inside the perimeter, it burned from 8 July 2025 to 19 July 2025 (12 days). The perimeter dates it from 8 July 2025 to 8 July 2025.

How much area did it burn?

The official perimeter published by United States agencies (MTBS / NIFC) is 3,309 hectares (33.1 km²). Other tallies, such as daily incident reports, may give slightly different figures.

Which counties burned?

The fire only entered Stevens (3,330 ha, 0.5 %).

What was the weather like?

During the fire the temperature reached 37.5 °C, humidity dropped to 16 % and gusts hit 54 km/h. The fire danger index (FWI) reached 37, 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.

US · United States · 2025-07-08 → 2025-07-19

Hope Fire, July 2025 Stevens

Out · last detection 19 Jul 2025, 09:23 UTC

The fire started on 8 July 2025 in Stevens, United States, and satellites saw it burning for 12 days. United States agencies (MTBS / NIFC) mapped an official burnt perimeter of 3,309 hectares, spread across a single county.

It is the 93th largest in Washington since 2016 (of 285 with a page). Number 103 in United States in 2025, of 327.

Compare with…

Suggestions: Crown Creek · 2025 Horns Mountain · 2018 Bulldog Mountain · 2021 Katy Creek · 2025

Burnt area: 3,309ha; official perimeter (MTBS / NIFC)
Duration: 12days; 8 Jul 2025 – 19 Jul 2025
Municipalities hit: 1; counties
Started on: 8 Jul; 2025
Heat detections: 382; in a single hotspot: 328 MW
Danger at start: 36; High · FWI index
Average daily power: 428MW; detected power per day, on average

HOTSPOTS BY DAY 8 Jul19 Jul

Play back 19 Jul 2025

How it evolved, day by day

8 Jul 10 Jul 12 Jul 14 Jul 17 Jul 19 Jul

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

The weather it burned in

38°high

54km/h · peak gust

16%lowest humidity

It had gone 5 days without rain (1 mm or more) when it started. Rain came after the fire: 4.4 mm on 21 Jul.

This area had burned before

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

How big is it?

It burned the equivalent of 2.1% of the area of London (33 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 town

Stevens where it started

3,330 ha reached on 8 Jul

0.5 %

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)
8 Jul	35.7 °C	16 %	52 km/h	0.0 mm	High 36
9 Jul	31.0 °C	30 %	50 km/h	0.6 mm	High 28
10 Jul	27.0 °C	30 %	44 km/h	0.0 mm	High 28
11 Jul	31.0 °C	17 %	24 km/h	0.0 mm	High 30
12 Jul	34.7 °C	20 %	30 km/h	0.0 mm	High 32
13 Jul	37.5 °C	18 %	51 km/h	0.1 mm	High 37
14 Jul	31.8 °C	26 %	54 km/h	0.6 mm	High 34
15 Jul	24.6 °C	31 %	51 km/h	0.6 mm	High 26
16 Jul	30.0 °C	23 %	30 km/h	0.0 mm	High 28
17 Jul	28.8 °C	27 %	35 km/h	0.0 mm	High 29
18 Jul	31.2 °C	24 %	45 km/h	0.9 mm	High 29
19 Jul	27.3 °C	28 %	34 km/h	0.1 mm	High 27
20 Jul after	25.9 °C	35 %	24 km/h	0.8 mm	Moderate 19
21 Jul after	22.3 °C	51 %	22 km/h	4.4 mm	Very low 3

Before and after, from space

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

↔

Before · 1 Jul 2025

After · 26 Jul 2025

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 10 July 2025 the air beside the fire reached 75 µg/m³ of PM2.5. That day averaged 27: 1.8 times the WHO daily guideline (15).

PM2.5 peak75 µg/m³

Days over the guideline2 days

PM1078 µg/m³

Optical depth0.35

WHO 15

67891011

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 · 382Every 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 Hope fire last?: According to the heat detections seen by satellite inside the perimeter, it burned from 8 July 2025 to 19 July 2025 (12 days). The perimeter dates it from 8 July 2025 to 8 July 2025.
How much area did it burn?: The official perimeter published by United States agencies (MTBS / NIFC) is 3,309 hectares (33.1 km²). Other tallies, such as daily incident reports, may give slightly different figures.
Which counties burned?: The fire only entered Stevens (3,330 ha, 0.5 %).
What was the weather like?: During the fire the temperature reached 37.5 °C, humidity dropped to 16 % and gusts hit 54 km/h. The fire danger index (FWI) reached 37, 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

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.

Report an error

What do you think is wrong?

Dates or duration Place or towns Burned area Name It was not a wildfire Same fire as another page Something else

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 911.

How we know this

Perimeter: NIFC WFIGS (United States), official.
Dates adjusted with the VIIRS detections inside the perimeter, which said 8 July 2025 to 8 July 2025. 382 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.

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.

Where it burned