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Bridge Creek Fire, June 2025 San Juan

Out · last detection 1 Jul 2025, 21:25 UTC

The fire started on 13 June 2025 in San Juan, United States, and satellites saw it burning for 19 days. United States agencies (MTBS / NIFC) mapped an official burnt perimeter of 922 hectares, spread across a single county.

It is the 112th largest in Utah since 2016 (of 165 with a page). Number 220 in United States in 2025, of 325.

Compare with…

Suggestions: Cottonwood · 2026Monroe Canyon · 2025

Burnt area
922ha
official perimeter (MTBS / NIFC)
Duration
≈ 19days
13 Jun 2025 – 1 Jul 2025
Counties hit
1
counties
Started on
13 Jun
2025
Heat detections
209
in a single hotspot: 202 MW
Danger at start
58
Extreme · FWI index
Average daily power
258MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 13 Jun1 Jul
1 Jul 2025

How it evolved, day by day

13 Jun 2025 · 430 MW · 7 14 Jun 2025 · 18 MW · 7 16 Jun 2025 · 13 MW · 5 17 Jun 2025 · 1,061 MW · 27 18 Jun 2025 · 164 MW · 26 19 Jun 2025 · 82 MW · 14 20 Jun 2025 · 882 MW · 47 21 Jun 2025 · 225 MW · 40 22 Jun 2025 · 27 MW · 9 27 Jun 2025 · 4 MW · 2 30 Jun 2025 · 7 MW · 3 1 Jul 2025 · 178 MW · 22
13 Jun 17 Jun 20 Jun 27 Jun

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

The weather it burned in

32°high
71km/h · peak gust
3%lowest humidity

It had gone 10 days without rain (1 mm or more) when it started. Rain came after the fire: 1.1 mm on 3 Jul.

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 0.6% of the area of London (9.2 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. San Juan where it started
    1,048 ha reached on 13 Jun
    0.0 %

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 2025
Built-up area< 0.1 ha
Residents< 20

Inside the perimeter there was no noticeable built-up land and almost nobody lived there (GHSL 2025, 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. The GHSL 2025 epoch is a projection made from 2020 and earlier data.

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)

Started with Extreme FWI: 36 % of the area in United States Very dry air: 40 % of the area in United States

Day High Min. humidity Peak gust Rain Danger (FWI)
13 Jun 29.5 °C 4 % 39 km/h 0.0 mm Extreme 58
14 Jun 30.1 °C 4 % 32 km/h 0.0 mm Extreme 54
15 Jun 31.2 °C 4 % 36 km/h 0.0 mm Extreme 58
16 Jun 31.5 °C 3 % 55 km/h 0.0 mm Extreme 70
17 Jun 29.4 °C 5 % 45 km/h 0.0 mm Very extreme 70
18 Jun 28.9 °C 5 % 30 km/h 0.0 mm Extreme 55
19 Jun 32.4 °C 4 % 55 km/h 0.0 mm Extreme 70
20 Jun 30.0 °C 4 % 67 km/h 0.0 mm Very extreme 86
21 Jun 27.6 °C 7 % 71 km/h 0.0 mm Very extreme 89
22 Jun 24.2 °C 6 % 53 km/h 0.0 mm Extreme 68
23 Jun 25.8 °C 7 % 37 km/h 0.0 mm Extreme 56
24 Jun 25.7 °C 6 % 46 km/h 0.0 mm Extreme 64
25 Jun 25.3 °C 7 % 37 km/h 0.0 mm Extreme 59
26 Jun 27.4 °C 3 % 32 km/h 0.0 mm Extreme 53
27 Jun 28.2 °C 6 % 38 km/h 0.0 mm Extreme 60
28 Jun 29.0 °C 7 % 42 km/h 0.0 mm Extreme 64
29 Jun 30.3 °C 5 % 39 km/h 0.0 mm Extreme 61
30 Jun 29.5 °C 7 % 35 km/h 0.0 mm Extreme 55
1 Jul 28.3 °C 11 % 55 km/h 0.3 mm Very high 48
2 Jul after 27.3 °C 17 % 57 km/h 0.1 mm Very high 49
3 Jul after 20.2 °C 26 % 53 km/h 1.1 mm High 25

Its twins: fires that started in the same weather

It started with an FWI of 57.5, a minimum humidity of 4% and 10 days without rain. Fires in the area that started in weather like this since 2016: 21.

FWI at the start 57.5
Minimum humidity 4 %
Days without rain 10
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

Cottonwood Fire, June 2026
39,442 ha 8 days FWI 59.0 Min. humidity 3 % 194 km away, in 2026

First rain (1 mm or more) after it ended: none in the following ten days.

What happened to them

8 days
median duration
2,002 ha
median area
81 %
went past 1,000 ha
2.4 mm
rain at the end (median; 14 of 21 had it)

It stayed below its twins: 922 ha against a median of 2,002 ha. It lasted 19 days, against 8 days.

In 7 of 21, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 2.4 mm.

This is a bank of analogues: it shows what usually happens, not what will happen. With fewer than 15 twins we give no figures. How we calculate it

How it ended

1.1 mmfirst rain
3 Jul2 days after it ended
71km/h · max. gust

It was considered over on 1 Jul, and on 3 Jul 1.1 mm fell. We do not know whether the rain or the firefighters put it out. Twins with rain when they ended: 14 of 21, with a median of 2.4 mm.

Weather on this page: Open-Meteo.com (CC BY 4.0) · Copernicus Climate Change Service (ERA5)

How a twin is chosen

  • Same area: fires that have already ended, less than 250 km from this one, since 2016.
  • Same start: we compare the FWI on the first day, the minimum humidity that day and the run of days without rain before it. The slider sets how much they may differ.
  • Only pages with final weather data (ERA5 reanalysis) calculated in the same way as this fire’s; agricultural and grass burns and pages with data under review are left out.
  • Fires burning at the same time as this one (a week before or after) are left out: they share the same spell of weather and do not count as a precedent.
  • They are sorted by similarity, and the outlines of the first five are drawn.

How we calculate it

Before and after, from space

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

Before · 6 Jun 2025
After · 8 Jul 2025

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 14 June 2025 the air beside the fire reached 7 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).

PM2.5 peak7 µg/m³
Days over the guideline0 days
PM1039 µg/m³
Optical depth0.30
11 Jun13 Jun15 Jun
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 · 209Every 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

Frequently asked questions

How long did the Bridge Creek Fire last?
The official perimeter only gives the start date (13 June 2025). The end comes from the heat detections inside the perimeter: it burned until 1 July 2025 (19 days from 13 June 2025), 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 922 hectares (9.2 km²). Other tallies, such as daily incident reports, may give slightly different figures.
Which counties burned?
The fire only entered San Juan (1,048 ha, 0.0 %).
What was the weather like?
During the fire the temperature reached 32.4 °C, humidity dropped to 3 % and gusts hit 71 km/h. The fire danger index (FWI) reached 89, class Very extreme.
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.
How did the fires that started in similar weather in this area end?
Fires less than 250 km away that started since 2016 with a similar FWI, humidity and dry spell: 21. Their median duration was 8 days and their median area 2,002 ha; 81 % went past 1,000 ha. In 7 of 21, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 2.4 mm.

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.

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?

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.
  • 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. 209 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 2025, 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.