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Wildcat Fire, May 2024 Maricopa

Out · last detection 19 May 2024, 20:32 UTC

The fire started on 18 May 2024 in Maricopa, United States, and satellites saw it burning for 1 day. United States agencies (MTBS / NIFC) mapped an official burnt perimeter of 5,735 hectares, spread across a single county.

It is the 59th largest in Arizona since 2016 (of 380 with a page). Number 78 in United States in 2024, of 371.

Burnt area
5,735ha
official perimeter (MTBS / NIFC)
Duration
1day
18 May 2024 – 18 May 2024
Municipalities hit
1
counties
Started on
18 May
2024
Heat detections
93
in a single hotspot: 166 MW
Danger at start
54
Extreme · FWI index
Energy released
2.0GW
sum of detected power

Where it burned

19 May 2024
HOTSPOTS BY DAY 18 May18 May

How it evolved, day by day

1819

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
41km/h · peak gust
7%lowest humidity

It had gone 42 days without rain (1 mm or more) when it started.

This area had burned before

19% of the perimeter overlaps earlier fires recorded since 2016: 744 ha in 2019, 384 ha in 2020.

What happened to each town

  1. Maricopa where it started
    5,798 ha reached on 18 May
    0.2 %

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)
18 May 33.4 °C 10 % 40 km/h 0.0 mm Extreme 54
19 May after 31.4 °C 7 % 41 km/h 0.0 mm Extreme 56
20 May after 26.2 °C 9 % 55 km/h 0.4 mm Very extreme 72
21 May after 29.1 °C 6 % 36 km/h 0.0 mm Extreme 54
22 May after 30.2 °C 7 % 36 km/h 0.0 mm Extreme 54
23 May after 30.3 °C 9 % 40 km/h 0.0 mm Extreme 56
24 May after 31.5 °C 10 % 39 km/h 0.0 mm Extreme 56
25 May after 27.9 °C 14 % 49 km/h 0.0 mm Extreme 60
26 May after 30.6 °C 11 % 32 km/h 0.0 mm Very high 48
27 May after 33.3 °C 8 % 32 km/h 0.0 mm Extreme 51
28 May after 35.3 °C 6 % 33 km/h 0.0 mm Extreme 55
29 May after 33.6 °C 8 % 34 km/h 0.0 mm Extreme 56

Before and after, from space

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

Before · 11 May 2024
After · 25 May 2024

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 19 May 2024 the air beside the fire reached 25 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).

PM2.5 peak25 µg/m³
Days over the guideline0 days
PM1059 µg/m³
Optical depth0.26
161718192021
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 · 93Every 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 Wildcat fire last?
It burned between 18 May 2024 and 18 May 2024: 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 5,735 hectares (57.4 km²). Other tallies, such as daily incident reports, may give slightly different figures.
Which counties burned?
The fire only entered Maricopa (5,798 ha, 0.2 %).
What was the weather like?
During the fire the temperature reached 33.4 °C, humidity dropped to 7 % and gusts hit 41 km/h. The fire danger index (FWI) reached 56, class 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.

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.