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Border 8 Fire, August 2019 United States

Out · last measured on 14 Aug 2019

The fire started on 14 August 2019 in San Diego, United States, and satellites saw it burning for 1 day. United States agencies (MTBS / NIFC) mapped an official burnt perimeter of 682 hectares, spread across a single county.

It is the 346th largest in California since 2016 (of 442 with a page). Number 269 in United States in 2019, of 367.

Burnt area
682ha
official perimeter (MTBS / NIFC)
Duration
1day
14 Aug 2019 – 14 Aug 2019
Municipalities hit
0
counties
Started on
14 Aug
2019
Heat detections
2
in a single hotspot: 13 MW
Danger at start
34
High · FWI index

Where it burned

HOTSPOTS BY DAY 14 Aug14 Aug

The weather it burned in

33°high
70km/h · peak gust
2%lowest humidity

It had gone 53 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.

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)
14 Aug 30.7 °C 25 % 33 km/h 0.0 mm High 34
15 Aug after 30.5 °C 17 % 31 km/h 0.0 mm Very high 38
16 Aug after 27.3 °C 21 % 30 km/h 0.0 mm High 38
17 Aug after 25.7 °C 36 % 31 km/h 0.0 mm High 32
18 Aug after 25.5 °C 42 % 31 km/h 0.0 mm High 28
19 Aug after 28.0 °C 32 % 34 km/h 0.0 mm High 29
20 Aug after 28.8 °C 23 % 36 km/h 0.0 mm High 35
21 Aug after 30.1 °C 22 % 32 km/h 0.0 mm High 36
22 Aug after 27.8 °C 15 % 31 km/h 0.0 mm Very high 40
23 Aug after 26.2 °C 43 % 31 km/h 0.0 mm High 29
24 Aug after 28.5 °C 36 % 38 km/h 0.0 mm High 32
25 Aug after 30.8 °C 29 % 40 km/h 0.0 mm High 35
26 Aug after 30.0 °C 27 % 41 km/h 0.0 mm High 37
27 Aug after 28.0 °C 41 % 34 km/h 0.0 mm High 30
28 Aug after 26.3 °C 46 % 31 km/h 0.0 mm High 26
29 Aug after 28.6 °C 46 % 35 km/h 0.0 mm High 29
30 Aug after 29.0 °C 41 % 37 km/h 0.0 mm High 29
31 Aug after 30.1 °C 37 % 40 km/h 0.0 mm High 31
1 Sept after 28.7 °C 43 % 35 km/h 0.0 mm High 28
2 Sept after 30.1 °C 45 % 34 km/h 0.5 mm High 29
3 Sept after 29.6 °C 48 % 37 km/h 0.0 mm High 30
4 Sept after 31.2 °C 37 % 31 km/h 0.2 mm High 30
5 Sept after 29.6 °C 46 % 37 km/h 0.1 mm High 30
6 Sept after 29.9 °C 42 % 36 km/h 0.0 mm High 30
7 Sept after 29.1 °C 39 % 38 km/h 0.0 mm High 30
8 Sept after 24.0 °C 41 % 33 km/h 0.1 mm High 28
9 Sept after 24.3 °C 42 % 32 km/h 0.0 mm High 28
10 Sept after 22.5 °C 47 % 36 km/h 0.0 mm High 26
11 Sept after 24.0 °C 41 % 34 km/h 0.0 mm High 25
12 Sept after 27.4 °C 34 % 35 km/h 0.0 mm High 28
13 Sept after 30.6 °C 21 % 34 km/h 0.0 mm High 38
14 Sept after 32.1 °C 22 % 36 km/h 0.0 mm Very high 42
15 Sept after 31.6 °C 21 % 38 km/h 0.0 mm Very high 42
16 Sept after 27.3 °C 32 % 33 km/h 0.0 mm High 36
17 Sept after 26.2 °C 28 % 35 km/h 0.0 mm High 35
18 Sept after 24.5 °C 33 % 32 km/h 0.0 mm High 33
19 Sept after 23.3 °C 44 % 37 km/h 0.0 mm High 29
20 Sept after 23.7 °C 38 % 36 km/h 0.0 mm High 30
21 Sept after 26.2 °C 36 % 36 km/h 0.0 mm High 28
22 Sept after 28.9 °C 12 % 40 km/h 0.0 mm Very high 46
23 Sept after 26.2 °C 21 % 32 km/h 0.0 mm Very high 41
24 Sept after 29.1 °C 20 % 31 km/h 0.0 mm Very high 39
25 Sept after 25.8 °C 33 % 36 km/h 0.0 mm High 36
26 Sept after 23.1 °C 48 % 35 km/h 0.8 mm Moderate 20
27 Sept after 21.2 °C 62 % 31 km/h 0.4 mm Moderate 19
28 Sept after 21.0 °C 58 % 36 km/h 2.4 mm Low 7
29 Sept after 19.5 °C 43 % 36 km/h 1.9 mm Low 7
30 Sept after 20.7 °C 35 % 35 km/h 0.0 mm Moderate 16
1 Oct after 20.5 °C 36 % 30 km/h 0.0 mm Moderate 20
2 Oct after 24.0 °C 18 % 35 km/h 0.0 mm High 32
3 Oct after 24.2 °C 22 % 32 km/h 0.0 mm High 32
4 Oct after 24.3 °C 14 % 30 km/h 0.0 mm High 37
5 Oct after 26.8 °C 10 % 31 km/h 0.0 mm Very high 42
6 Oct after 28.8 °C 4 % 30 km/h 0.0 mm Very high 48
7 Oct after 29.0 °C 9 % 35 km/h 0.0 mm Extreme 52
8 Oct after 25.5 °C 27 % 36 km/h 0.0 mm Very high 40
9 Oct after 22.9 °C 32 % 35 km/h 0.0 mm High 34
10 Oct after 25.3 °C 6 % 35 km/h 0.0 mm Very high 46
11 Oct after 27.4 °C 2 % 44 km/h 0.0 mm Extreme 61
12 Oct after 24.9 °C 8 % 35 km/h 0.0 mm Extreme 52
13 Oct after 22.1 °C 21 % 34 km/h 0.0 mm Very high 43
14 Oct after 21.5 °C 33 % 34 km/h 0.0 mm High 34
15 Oct after 25.7 °C 23 % 32 km/h 0.0 mm High 30
16 Oct after 28.2 °C 20 % 34 km/h 0.0 mm High 37
17 Oct after 23.0 °C 36 % 40 km/h 0.0 mm High 34
18 Oct after 23.1 °C 32 % 37 km/h 0.0 mm High 32
19 Oct after 24.6 °C 29 % 37 km/h 0.0 mm High 33
20 Oct after 26.6 °C 14 % 28 km/h 0.0 mm High 36
21 Oct after 31.5 °C 7 % 34 km/h 0.0 mm Extreme 51
22 Oct after 33.1 °C 5 % 40 km/h 0.0 mm Extreme 59
23 Oct after 29.8 °C 10 % 32 km/h 0.0 mm Extreme 53
24 Oct after 30.5 °C 6 % 69 km/h 0.0 mm Very extreme 73
25 Oct after 30.0 °C 2 % 70 km/h 0.0 mm Very extreme 75
26 Oct after 28.1 °C 4 % 34 km/h 0.0 mm Extreme 57
27 Oct after 20.1 °C 27 % 46 km/h 0.4 mm Very high 45
28 Oct after 22.2 °C 7 % 53 km/h 0.0 mm Extreme 53
29 Oct after 18.6 °C 17 % 35 km/h 0.0 mm Very high 42
30 Oct after 18.9 °C 3 % 79 km/h 0.0 mm Very extreme 72
31 Oct after 23.5 °C 2 % 49 km/h 0.0 mm Extreme 58
1 Nov after 25.1 °C 3 % 27 km/h 0.0 mm Extreme 50
2 Nov after 26.9 °C 2 % 27 km/h 0.0 mm Extreme 52
3 Nov after 24.9 °C 2 % 30 km/h 0.0 mm Extreme 53
4 Nov after 24.6 °C 5 % 32 km/h 0.0 mm Extreme 53
5 Nov after 23.5 °C 12 % 30 km/h 0.0 mm Very high 47

Before and after, from space

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

Before · 7 Aug 2019
After · 21 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 · 2Every 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 Border 8 fire last?
It burned between 14 August 2019 and 14 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 682 hectares (6.8 km²). Other tallies, such as daily incident reports, may give slightly different figures.
What was the weather like?
During the fire the temperature reached 33.1 °C, humidity dropped to 2 % and gusts hit 70 km/h. The fire danger index (FWI) reached 75, class Very 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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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.