How long did the Lake fire last?

According to the heat detections seen by satellite, it burned from 1 October 2026 to 4 October 2026 (4 days between the first and the last detection). There is no perimeter yet to date it.

How much area did it burn?

There is no official perimeter yet: NIFC has not published it. Heat detections rebuild about 434 hectares with fire (4.3 km²).

Which counties burned?

The fire only entered Lake (434 ha, 0.0 %).

Is the Lake fire still active?

No fire detections since 4 October 2026. A lack of detections is not an official extinction.

What was the weather like?

During the fire the temperature reached 25.3 °C, humidity dropped to 12 % and gusts hit 24 km/h. The fire danger index (FWI) reached 28, 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 · 2026-10-01 → 2026-10-04

Lake fire, 1 October 2026 Lake

Out · last measured on 4 Oct 2026

Satellites first detected fire on 1 October 2026 in Lake, United States. It was active for 4 days, with 75 heat detections and an area with fire of about 434 hectares rebuilt from them, spread across a single county.

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NIFC has not yet published the perimeter of this fire. For now the area is the one rebuilt from heat detections (about 14 hectares per pixel). When the perimeter arrives, this page picks it up on its own and keeps the same address.

Area with fire: ≈ 434ha; rebuilt from hotspots, no official perimeter yet
Duration: 4days; 1 Oct 2026 – 4 Oct 2026
Counties hit: 1; counties
Started on: 1 Oct; 2026
Heat detections: 75; in a single hotspot: 13 MW
Danger at start: 22; High · FWI index

HOTSPOTS BY DAY 1 Oct4 Oct

The weather it burned in

25°high

24km/h · peak gust

12%lowest humidity

It had gone 13 days without rain (1 mm or more) when it started.

What happened to each county

Lake where it started

434 ha reached on 1 Oct

0.0 %

Area with fire inside each county, rebuilt from heat detections (about 14 hectares per VIIRS pixel). An estimate until NIFC publishes the official perimeter. 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.

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)
1 Oct	24.6 °C	12 %	19 km/h	0.0 mm	High 22
2 Oct	24.3 °C	16 %	19 km/h	0.0 mm	High 24
3 Oct	25.3 °C	12 %	24 km/h	0.0 mm	High 28
4 Oct	25.2 °C	16 %	17 km/h	0.0 mm	High 27
5 Oct after	24.8 °C	17 %	22 km/h	0.0 mm	High 29
6 Oct after	24.9 °C	18 %	19 km/h	0.0 mm	High 29
7 Oct after	25.8 °C	12 %	16 km/h	0.0 mm	High 28
8 Oct after	25.9 °C	10 %	16 km/h	0.0 mm	High 30
9 Oct after	23.2 °C	13 %	50 km/h	0.0 mm	Very high 43
10 Oct after	9.9 °C	26 %	37 km/h	0.0 mm	High 30
11 Oct after	5.4 °C	23 %	48 km/h	0.0 mm	High 30
12 Oct after	4.2 °C	29 %	41 km/h	0.9 mm	Moderate 14
13 Oct after	10.7 °C	22 %	26 km/h	0.0 mm	Moderate 16
14 Oct after	15.0 °C	30 %	25 km/h	0.0 mm	Moderate 18

Before and after, from space

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

↔

Before · 24 Sept 2026

After · 11 Oct 2026

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 2 October 2026 the air beside the fire reached 38 µg/m³ of PM2.5. That day averaged 21: 1.4 times the WHO daily guideline (15).

PM2.5 peak38 µg/m³

Days over the guideline1 day

PM1038 µg/m³

Optical depth0.12

WHO 15

293012

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 · 75Every 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 Lake fire last?: According to the heat detections seen by satellite, it burned from 1 October 2026 to 4 October 2026 (4 days between the first and the last detection). There is no perimeter yet to date it.
How much area did it burn?: There is no official perimeter yet: NIFC has not published it. Heat detections rebuild about 434 hectares with fire (4.3 km²).
Which counties burned?: The fire only entered Lake (434 ha, 0.0 %).
Is the Lake fire still active?: No fire detections since 4 October 2026. A lack of detections is not an official extinction.
What was the weather like?: During the fire the temperature reached 25.3 °C, humidity dropped to 12 % and gusts hit 24 km/h. The fire danger index (FWI) reached 28, 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

NASA FIRMS ↗
NIFC · Fire maps ↗

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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What do you think is wrong?

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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

No perimeter yet: the area (≈ 434 ha) is estimated by counting VIIRS pixels with fire, about 14 ha each.
Dates of the first and last VIIRS detection of the cluster. 75 Suomi-NPP VIIRS detections on those dates.
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