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Carson Midway Fire, March 2018 El Paso, Pueblo

Out · last detection 17 Mar 2018, 20:13 UTC

The fire started on 16 March 2018 in El Paso, United States, and satellites saw it burning for 2 days. United States agencies (MTBS / NIFC) mapped an official burnt perimeter of 1,931 hectares, spread across 2 counties.

It is the 67th largest in Colorado since 2016 (of 167 with a page). Number 206 in United States in 2018, of 511.

Compare with…
Burnt area
1,931ha
official perimeter (MTBS / NIFC)
Duration
≈ 2days
16 Mar 2018 – 17 Mar 2018
Counties hit
2
counties
Started on
16 Mar
2018
Heat detections
45
in a single hotspot: 64 MW
Danger at start
31
High · FWI index
Average daily power
564MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 16 Mar17 Mar
17 Mar 2018

How it evolved, day by day

16 Mar 2018 · 1,121 MW · 43 17 Mar 2018 · 7 MW · 2
16 Mar 17 Mar

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

The weather it burned in

17°high
66km/h · peak gust
10%lowest humidity

It had gone 19 days without rain (1 mm or more) when it started. Rain came after the fire: 2.3 mm on 26 Mar.

This area had burned before

3% of the perimeter overlaps earlier fires recorded since 2016: 59 ha in 2016.

How big is it?

10 km
It burned the equivalent of 1.2% of the area of London (19 km² against 1,583 km²).

London boundary: geoBoundaries · Office for National Statistics (Open Government Licence v3.0).

This compares size, not location: both shapes are at the same scale, north up, centred on each other.

What happened to each county

  1. El Paso where it started
    1,447 ha reached on 16 Mar
    0.3 %
  2. 470 ha reached on 16 Mar
    0.1 %

Burnt area inside each county, from crossing the official perimeter with administrative boundaries. The distance runs from the point marking the centre of each area to the nearest fire: staying a kilometre away does not mean it reached the houses.

People and buildings inside the perimeter

GHSL 2020
Built-up area2.9 ha
Residents≈ 200

Inside the perimeter there were about 2.9 hectares of built-up land and about 200 residents (GHSL 2020, satellite-based estimate).

This is an estimate on 100 m cells, made from satellite imagery and census data: it does not mean that homes burned or that anyone was harmed. The perimeter also contains land that never burned.

Source: Global Human Settlement Layer (GHS-BUILT-S and GHS-POP R2023A), European Commission Joint Research Centre (JRC), © European Union, CC BY 4.0. Sum inside the perimeter computed by WorldFires. human-settlement.emergency.copernicus.eu

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)
16 Mar 15.2 °C 11 % 66 km/h 0.0 mm High 31
17 Mar 17.3 °C 10 % 36 km/h 0.0 mm High 22
18 Mar after 14.7 °C 17 % 39 km/h 0.0 mm High 25
19 Mar after 8.6 °C 33 % 34 km/h 0.2 mm Moderate 18
20 Mar after 14.8 °C 16 % 42 km/h 0.0 mm Moderate 21
21 Mar after 16.2 °C 15 % 35 km/h 0.0 mm Moderate 21
22 Mar after 23.0 °C 15 % 30 km/h 0.0 mm High 22
23 Mar after 22.5 °C 10 % 77 km/h 0.0 mm Very high 50
24 Mar after 19.8 °C 14 % 40 km/h 0.0 mm High 32
25 Mar after 20.8 °C 10 % 40 km/h 0.0 mm High 33
26 Mar after 14.7 °C 30 % 46 km/h 2.3 mm Low 7

Before and after, from space

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

Before · 9 Mar 2018
After · 24 Mar 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 · 45Every 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 Carson Midway Fire last?
The official perimeter only gives the start date (16 March 2018). The end comes from the heat detections inside the perimeter: it burned until 17 March 2018 (2 days from 16 March 2018), the last day with detections before more than 10 days in a row without any, so it is approximate.
How much area did it burn?
The official perimeter published by United States agencies (MTBS / NIFC) is 1,931 hectares (19.3 km²). Other tallies, such as daily incident reports, may give slightly different figures.
Which counties burned?
The fire entered 2 counties: El Paso (1,447 ha, 0.3 %); Pueblo (470 ha, 0.1 %).
What was the weather like?
During the fire the temperature reached 17.3 °C, humidity dropped to 10 % and gusts hit 66 km/h. The fire danger index (FWI) reached 31, 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 · Emergency number and official warnings ›

Satellite cross-check

History of this page Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.

No changes since 24 October 2026.

RSS Changes to this page

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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How we know this
  • Perimeter: MTBS (US Geological Survey and US Forest Service), official.
  • The official perimeter has no end date: the end is the last day with VIIRS detections inside the perimeter before a gap of more than 10 days (150 days at most), so it is approximate. 45 Suomi-NPP VIIRS detections on those dates.
  • We have not matched this page with any official record.
  • Weather: Copernicus ERA5 reanalysis at the fire location, in cells of about 25 km.
  • Built-up area and population come from the JRC Global Human Settlement Layer (epoch 2020, 100 m cells), summed inside the perimeter: an estimate of what was there, not a damage count.

How we build fire pages: methodology ›

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.