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Gregerson Fire, August 2019 Lincoln

Out · last detection 23 Aug 2019, 21:29 UTC

The fire started on 23 August 2019 in Lincoln, United States, and satellites saw it burning for 1 day. United States agencies (MTBS / NIFC) mapped an official burnt perimeter of 1,299 hectares, spread across a single county.

It is the 135th largest in Nevada since 2016 (of 237 with a page). Number 178 in United States in 2019, of 367.

The power measured by the satellite is low (7.7 MW in the strongest hotspot), more typical of grass or stubble burning, or a slow surface fire, than of a large crown fire.

Burnt area
1,299ha
official perimeter (MTBS / NIFC)
Duration
1day
23 Aug 2019 – 23 Aug 2019
Municipalities hit
1
counties
Started on
23 Aug
2019
Heat detections
18
in a single hotspot: 8 MW
Danger at start
60
Extreme · FWI index
Energy released
64MW
sum of detected power

Where it burned

HOTSPOTS BY DAY 23 Aug23 Aug

How it evolved, day by day

23

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

The weather it burned in

33°high
36km/h · peak gust
5%lowest humidity

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

This area had burned before

23% of the perimeter overlaps earlier fires recorded since 2016: 303 ha in 2017.

What happened to each town

  1. Lincoln where it started
    1,290 ha reached on 23 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)
23 Aug 33.1 °C 5 % 36 km/h 0.0 mm Extreme 60
24 Aug after 32.8 °C 8 % 32 km/h 0.0 mm Extreme 58
25 Aug after 34.0 °C 9 % 30 km/h 0.0 mm Extreme 56
26 Aug after 35.1 °C 8 % 21 km/h 0.0 mm Extreme 52
27 Aug after 35.6 °C 9 % 28 km/h 0.0 mm Extreme 52
28 Aug after 34.8 °C 11 % 46 km/h 0.0 mm Extreme 67
29 Aug after 33.4 °C 12 % 36 km/h 0.0 mm Extreme 58
30 Aug after 34.6 °C 9 % 32 km/h 0.0 mm Extreme 56
31 Aug after 34.9 °C 7 % 34 km/h 0.0 mm Extreme 56
1 Sept after 35.0 °C 7 % 36 km/h 0.0 mm Extreme 57
2 Sept after 30.6 °C 16 % 26 km/h 0.2 mm Very high 48

Before and after, from space

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

Before · 16 Aug 2019
After · 30 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 · 18Every 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 Gregerson fire last?
It burned between 23 August 2019 and 23 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 1,299 hectares (13.0 km²). Other tallies, such as daily incident reports, may give slightly different figures.
Which counties burned?
The fire only entered Lincoln (1,290 ha, 0.0 %).
What was the weather like?
During the fire the temperature reached 33.1 °C, humidity dropped to 5 % and gusts hit 36 km/h. The fire danger index (FWI) reached 60, 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.