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Boulin Fire, August 2019 Coconino

Out · last measured on 6 Aug 2019

The fire started on 6 August 2019 in Coconino, United States, and satellites saw it burning for 1 day. United States agencies (MTBS / NIFC) mapped an official burnt perimeter of 1,656 hectares, spread across a single county.

It is the 155th largest in Arizona since 2016 (of 380 with a page). Number 150 in United States in 2019, of 367.

Burnt area
1,656ha
official perimeter (MTBS / NIFC)
Duration
1day
6 Aug 2019 – 6 Aug 2019
Municipalities hit
1
counties
Started on
6 Aug
2019
Heat detections
183
in a single hotspot: 84 MW
Danger at start
17
Moderate · FWI index

Where it burned

HOTSPOTS BY DAY 6 Aug6 Aug

The weather it burned in

32°high
60km/h · peak gust
6%lowest humidity

It had gone 0 days without rain (1 mm or more) when it started.

This area had burned before

0% of the perimeter overlaps earlier fires recorded since 2016: 7 ha in 2017.

What happened to each town

  1. Coconino where it started
    1,659 ha reached on 11 Aug
    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)
6 Aug 25.5 °C 29 % 42 km/h 0.2 mm Moderate 17
7 Aug after 25.8 °C 31 % 50 km/h 0.6 mm High 22
8 Aug after 28.1 °C 24 % 44 km/h 0.2 mm High 27
9 Aug after 25.5 °C 25 % 39 km/h 0.5 mm High 26
10 Aug after 26.6 °C 27 % 40 km/h 0.5 mm High 27
11 Aug after 26.2 °C 26 % 44 km/h 0.0 mm High 29
12 Aug after 28.2 °C 15 % 40 km/h 0.0 mm High 34
13 Aug after 29.8 °C 10 % 34 km/h 0.0 mm High 37
14 Aug after 31.0 °C 9 % 26 km/h 0.0 mm High 36
15 Aug after 31.3 °C 7 % 31 km/h 0.0 mm Very high 42
16 Aug after 30.4 °C 8 % 60 km/h 0.0 mm Extreme 61
17 Aug after 29.2 °C 9 % 48 km/h 0.0 mm Extreme 57
18 Aug after 29.1 °C 11 % 46 km/h 0.0 mm Extreme 54
19 Aug after 29.8 °C 9 % 44 km/h 0.0 mm Extreme 52
20 Aug after 31.9 °C 10 % 37 km/h 0.0 mm Extreme 50
21 Aug after 31.6 °C 6 % 44 km/h 0.0 mm Extreme 55
22 Aug after 29.2 °C 8 % 60 km/h 0.0 mm Extreme 69
23 Aug after 28.7 °C 12 % 50 km/h 0.0 mm Extreme 59
24 Aug after 29.0 °C 16 % 46 km/h 0.0 mm Extreme 54
25 Aug after 30.3 °C 15 % 48 km/h 0.0 mm Extreme 58
26 Aug after 31.7 °C 14 % 39 km/h 0.0 mm Extreme 51
27 Aug after 32.2 °C 13 % 42 km/h 0.0 mm Very high 48
28 Aug after 30.4 °C 15 % 50 km/h 0.1 mm Extreme 55
29 Aug after 29.0 °C 16 % 39 km/h 0.0 mm Extreme 51
30 Aug after 30.8 °C 13 % 40 km/h 0.0 mm Very high 49
31 Aug after 31.5 °C 10 % 34 km/h 0.0 mm Very high 49

Before and after, from space

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

Before · 30 Jul 2019
After · 13 Aug 2019

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 · 183Every 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 Boulin fire last?
It burned between 6 August 2019 and 6 August 2019: 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 1,656 hectares (16.6 km²). Other tallies, such as daily incident reports, may give slightly different figures.
Which counties burned?
The fire only entered Coconino (1,659 ha, 0.0 %).
What was the weather like?
During the fire the temperature reached 31.9 °C, humidity dropped to 6 % and gusts hit 60 km/h. The fire danger index (FWI) reached 61, 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.