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Centennial Fire, June 2017 Owyhee, Elmore

Out · last detection 28 Jun 2017, 20:27 UTC

The fire started on 28 June 2017 in Owyhee, United States, and satellites saw it burning for 1 day. United States agencies (MTBS / NIFC) mapped an official burnt perimeter of 7,499 hectares, spread across 2 counties.

It is the 45th largest in Idaho since 2016 (of 379 with a page). Number 104 in United States in 2017, of 619.

Burnt area
7,499ha
official perimeter (MTBS / NIFC)
Duration
1day
28 Jun 2017 – 28 Jun 2017
Municipalities hit
2
counties
Started on
28 Jun
2017
Heat detections
86
in a single hotspot: 45 MW
Danger at start
66
Extreme · FWI index
Energy released
1.2GW
sum of detected power

Where it burned

HOTSPOTS BY DAY 28 Jun28 Jun

How it evolved, day by day

28

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
48km/h · peak gust
9%lowest humidity

It had gone 14 days without rain (1 mm or more) when it started.

This area had burned before

No earlier perimeters overlap this fire since 2016, when the satellite record begins.

What happened to each town

  1. Owyhee where it started
    7,317 ha reached on 28 Jun
    0.4 %
  2. Elmore
    177 ha
    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)
28 Jun 31.6 °C 9 % 48 km/h 0.0 mm Extreme 66
29 Jun after 29.5 °C 16 % 43 km/h 0.0 mm Extreme 54
30 Jun after 33.6 °C 9 % 26 km/h 0.0 mm Very high 44
1 Jul after 36.8 °C 8 % 27 km/h 0.0 mm Very high 49
2 Jul after 38.4 °C 9 % 33 km/h 0.0 mm Extreme 56
3 Jul after 38.3 °C 14 % 38 km/h 0.0 mm Extreme 64
4 Jul after 41.0 °C 7 % 23 km/h 0.0 mm Extreme 52
5 Jul after 39.3 °C 6 % 31 km/h 0.0 mm Extreme 62
6 Jul after 40.1 °C 6 % 27 km/h 0.0 mm Extreme 58
7 Jul after 41.9 °C 8 % 30 km/h 0.0 mm Extreme 57
8 Jul after 41.0 °C 9 % 23 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 · 21 Jun 2017
After · 5 Jul 2017

If the day is cloudy, change the date: each satellite passes once a day. In false colour the burnt ground looks brown or red.

Detections table · 86Every 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 Centennial fire last?
It burned between 28 June 2017 and 28 June 2017: 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 7,499 hectares (75.0 km²). Other tallies, such as daily incident reports, may give slightly different figures.
Which counties burned?
The fire entered 2 counties: Owyhee (7,317 ha, 0.4 %); Elmore (177 ha, 0.0 %).
What was the weather like?
During the fire the temperature reached 31.6 °C, humidity dropped to 9 % and gusts hit 48 km/h. The fire danger index (FWI) reached 66, 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.