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Flat Fire, July 2023 Curry, Josephine

Out · last detection 17 Jul 2023, 21:32 UTC

The fire started on 16 July 2023 in Curry, United States, and satellites saw it burning for 1 day. United States agencies (MTBS / NIFC) mapped an official burnt perimeter of 13,950 hectares, spread across 2 counties.

It is the 53th largest in Oregon since 2016 (of 327 with a page). Number 9 in United States in 2023, of 305.

Burnt area
13,950ha
official perimeter (MTBS / NIFC)
Duration
1day
16 Jul 2023 – 16 Jul 2023
Municipalities hit
2
counties
Started on
16 Jul
2023
Heat detections
1,493
in a single hotspot: 466 MW
Danger at start
35
High · FWI index
Energy released
8.1GW
sum of detected power

Where it burned

17 Jul 2023
HOTSPOTS BY DAY 16 Jul16 Jul

How it evolved, day by day

1617

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

The weather it burned in

28°high
51km/h · peak gust
27%lowest humidity

It had gone 26 days without rain (1 mm or more) when it started.

This area had burned before

5% of the perimeter overlaps earlier fires recorded since 2016: 675 ha in 2018.

What happened to each town

  1. Curry where it started
    13,733 ha reached on 16 Jul
    3.2 %
  2. Josephine
    234 ha reached on 16 Jul
    0.0 %

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)
16 Jul 28.4 °C 30 % 51 km/h 0.0 mm High 35
17 Jul after 26.4 °C 28 % 51 km/h 0.0 mm High 36
18 Jul after 28.2 °C 27 % 48 km/h 0.0 mm High 35
19 Jul after 26.3 °C 38 % 40 km/h 0.0 mm High 29
20 Jul after 26.6 °C 33 % 34 km/h 0.0 mm High 28
21 Jul after 27.9 °C 28 % 41 km/h 0.0 mm High 29
22 Jul after 28.1 °C 28 % 47 km/h 0.0 mm High 31
23 Jul after 26.1 °C 37 % 43 km/h 0.0 mm High 29
24 Jul after 21.8 °C 40 % 45 km/h 0.0 mm High 27
25 Jul after 25.3 °C 39 % 46 km/h 0.0 mm High 28
26 Jul after 26.2 °C 29 % 47 km/h 0.0 mm High 30
27 Jul after 24.5 °C 30 % 45 km/h 0.0 mm High 30
28 Jul after 23.2 °C 41 % 41 km/h 0.0 mm High 27
29 Jul after 23.7 °C 37 % 42 km/h 0.0 mm High 28
30 Jul after 24.9 °C 32 % 46 km/h 0.0 mm High 29
31 Jul after 25.3 °C 36 % 44 km/h 0.0 mm High 28
1 Aug after 27.2 °C 32 % 45 km/h 0.0 mm High 29
2 Aug after 25.5 °C 36 % 41 km/h 0.0 mm High 28

Before and after, from space

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

Before · 9 Jul 2023
After · 23 Jul 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 19 July 2023 the air beside the fire reached 89 µg/m³ of PM2.5. That day averaged 38: 2.5 times the WHO daily guideline (15).

PM2.5 peak89 µg/m³
Days over the guideline2 days
PM10128 µg/m³
Optical depth1.11
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 · 1,493Every 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 Flat fire last?
It burned between 16 July 2023 and 16 July 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 13,950 hectares (139.5 km²). Other tallies, such as daily incident reports, may give slightly different figures.
Which counties burned?
The fire entered 2 counties: Curry (13,733 ha, 3.2 %); Josephine (234 ha, 0.0 %).
What was the weather like?
During the fire the temperature reached 28.4 °C, humidity dropped to 27 % and gusts hit 51 km/h. The fire danger index (FWI) reached 36, 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

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.