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Three Lakes Fire, June 2023 Coconino

Out · last measured on 16 Jun 2023

The fire started on 16 June 2023 in Coconino, United States, and satellites saw it burning for 1 day. United States agencies (MTBS / NIFC) mapped an official burnt perimeter of 2,808 hectares, spread across a single county.

We are reviewing this page: some of its data look inconsistent (the place, the dates or the area), so treat them with caution.

Burnt area
2,808ha
official perimeter (MTBS / NIFC)
Duration
1day
16 Jun 2023 – 16 Jun 2023
Municipalities hit
1
counties
Started on
16 Jun
2023
Heat detections
60
in a single hotspot: 77 MW
Danger at start
9
Low · FWI index

Where it burned

HOTSPOTS BY DAY 16 Jun16 Jun

The weather it burned in

24°high
64km/h · peak gust
6%lowest humidity

It had gone 7 days without rain (1 mm or more) when it started.

This area had burned before

1% of the perimeter overlaps earlier fires recorded since 2016: 3 ha in 2020, 11 ha in 2021, 7 ha in 2022.

What happened to each town

  1. Coconino where it started
    3,916 ha reached on 14 Jun
    0.1 %

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)
12 Jun 15.9 °C 24 % 47 km/h 2.7 mm Low 9
13 Jun 17.9 °C 26 % 42 km/h 0.2 mm Moderate 19
14 Jun 20.7 °C 21 % 42 km/h 0.5 mm High 28
15 Jun 20.6 °C 26 % 52 km/h 4.9 mm Low 8
16 Jun 13.2 °C 61 % 32 km/h 19.4 mm Very low 0
17 Jun after 19.7 °C 28 % 44 km/h 0.0 mm Very low 4
18 Jun after 23.0 °C 19 % 60 km/h 0.0 mm High 22
19 Jun after 22.5 °C 12 % 64 km/h 0.0 mm High 35
20 Jun after 22.3 °C 21 % 56 km/h 0.1 mm High 33
21 Jun after 24.2 °C 14 % 38 km/h 0.0 mm High 28
22 Jun after 24.0 °C 9 % 56 km/h 0.0 mm Very high 42
23 Jun after 21.2 °C 6 % 56 km/h 0.0 mm Very high 42
24 Jun after 24.7 °C 4 % 35 km/h 0.0 mm High 37
25 Jun after 26.0 °C 4 % 55 km/h 0.0 mm Extreme 50
26 Jun after 26.5 °C 5 % 60 km/h 0.0 mm Extreme 56
27 Jun after 25.2 °C 6 % 52 km/h 0.0 mm Extreme 50
28 Jun after 24.0 °C 7 % 43 km/h 0.0 mm Very high 47
29 Jun after 23.7 °C 9 % 38 km/h 0.0 mm Extreme 50
30 Jun after 25.5 °C 12 % 32 km/h 0.0 mm Very high 39
1 Jul after 28.0 °C 11 % 30 km/h 0.0 mm Very high 40
2 Jul after 30.0 °C 8 % 40 km/h 0.0 mm Very high 41
3 Jul after 31.7 °C 6 % 43 km/h 0.0 mm Extreme 55

Before and after, from space

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

Before · 9 Jun 2023
After · 23 Jun 2023

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 16 June 2023 the air beside the fire reached 17 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).

PM2.5 peak17 µg/m³
Days over the guideline0 days
PM1024 µg/m³
Optical depth0.45
141516171819
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 · 60Every 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 Three Lakes fire last?
It burned between 16 June 2023 and 16 June 2023: 1 day, according to the start date recorded by United States agencies (MTBS / NIFC) and the heat detections seen by satellite.
How much area did it burn?
The official perimeter published by United States agencies (MTBS / NIFC) is 2,808 hectares (28.1 km²). Other tallies, such as daily incident reports, may give slightly different figures.
Which counties burned?
The fire only entered Coconino (3,916 ha, 0.1 %).
What was the weather like?
During the fire the temperature reached 24.2 °C, humidity dropped to 6 % and gusts hit 64 km/h. The fire danger index (FWI) reached 42, 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

Satellite cross-check

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.

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.