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Juliet Fire, August 2018 Flathead

Out · last measured on 22 Aug 2018

The fire started on 22 August 2018 in Flathead, United States, and satellites saw it burning for 1 day. United States agencies (MTBS / NIFC) mapped an official burnt perimeter of 1,180 hectares, spread across a single county.

It is the 162th largest in Montana since 2016 (of 302 with a page). Number 284 in United States in 2018, of 511.

Burnt area
1,180ha
official perimeter (MTBS / NIFC)
Duration
1day
22 Aug 2018 – 22 Aug 2018
Municipalities hit
1
counties
Started on
22 Aug
2018
Heat detections
277
in a single hotspot: 100 MW
Danger at start
13
Moderate · FWI index

Where it burned

HOTSPOTS BY DAY 22 Aug22 Aug

The weather it burned in

24°high
75km/h · peak gust
16%lowest humidity

It had gone one day without rain (1 mm or more) when it started. Rain came after the fire: 1.4 mm on 23 Sept.

This area had burned before

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

What happened to each town

  1. Flathead where it started
    1,165 ha reached on 24 Aug
    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)
22 Aug 21.0 °C 22 % 39 km/h 0.0 mm Moderate 13
23 Aug after 20.5 °C 26 % 54 km/h 0.0 mm High 21
24 Aug after 15.6 °C 35 % 66 km/h 0.3 mm High 24
25 Aug after 16.0 °C 28 % 45 km/h 0.0 mm Moderate 20
26 Aug after 10.0 °C 58 % 49 km/h 2.1 mm Very low 5
27 Aug after 6.5 °C 67 % 42 km/h 7.0 mm Very low 0
28 Aug after 12.5 °C 44 % 56 km/h 0.0 mm Very low 3
29 Aug after 19.1 °C 30 % 54 km/h 0.0 mm Low 8
30 Aug after 16.5 °C 35 % 70 km/h 0.5 mm Moderate 15
31 Aug after 14.9 °C 37 % 58 km/h 0.0 mm Moderate 15
1 Sept after 14.5 °C 30 % 60 km/h 0.0 mm Moderate 18
2 Sept after 16.2 °C 30 % 49 km/h 0.0 mm Moderate 17
3 Sept after 16.2 °C 35 % 75 km/h 0.0 mm High 21
4 Sept after 15.7 °C 32 % 35 km/h 0.0 mm Moderate 16
5 Sept after 21.9 °C 17 % 37 km/h 0.0 mm High 23
6 Sept after 24.5 °C 16 % 41 km/h 0.3 mm High 26
7 Sept after 22.8 °C 23 % 44 km/h 0.5 mm High 28
8 Sept after 17.5 °C 34 % 65 km/h 0.5 mm High 26
9 Sept after 16.7 °C 27 % 42 km/h 0.0 mm High 22
10 Sept after 17.3 °C 30 % 72 km/h 0.0 mm High 30
11 Sept after 12.4 °C 35 % 42 km/h 0.2 mm Moderate 20
12 Sept after 10.2 °C 34 % 42 km/h 0.2 mm Moderate 20
13 Sept after 7.8 °C 52 % 45 km/h 0.2 mm Moderate 15
14 Sept after 12.0 °C 30 % 44 km/h 0.2 mm Moderate 18
15 Sept after 15.0 °C 32 % 46 km/h 5.3 mm Very low 3
16 Sept after 10.9 °C 53 % 58 km/h 6.5 mm Very low 0
17 Sept after 11.2 °C 41 % 53 km/h 0.0 mm Very low 2
18 Sept after 11.7 °C 36 % 42 km/h 0.0 mm Very low 4
19 Sept after 11.3 °C 45 % 30 km/h 0.5 mm Low 5
20 Sept after 8.7 °C 60 % 51 km/h 4.1 mm Very low 0
21 Sept after 14.2 °C 43 % 61 km/h 0.0 mm Very low 3
22 Sept after 9.0 °C 49 % 70 km/h 0.7 mm Very low 5
23 Sept after 8.6 °C 54 % 49 km/h 1.4 mm Very low 2

Before and after, from space

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

Before · 15 Aug 2018
After · 29 Aug 2018

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 · 277Every 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 Juliet fire last?
It burned between 22 August 2018 and 22 August 2018: 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 1,180 hectares (11.8 km²). Other tallies, such as daily incident reports, may give slightly different figures.
Which counties burned?
The fire only entered Flathead (1,165 ha, 0.1 %).
What was the weather like?
During the fire the temperature reached 24.5 °C, humidity dropped to 16 % and gusts hit 75 km/h. The fire danger index (FWI) reached 30, 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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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.