How long did the Snyder fire last?

It burned between 27 June 2026 and 27 June 2026: 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 12,223 hectares (122.2 km²). Other tallies, such as daily incident reports, may give slightly different figures.

Which counties burned?

The fire entered 2 counties: Mesa (10,788 ha, 1.2 %); Grand (1,461 ha, 0.2 %).

What was the weather like?

During the fire the temperature reached 34.4 °C, humidity dropped to 5 % and gusts hit 85 km/h. The fire danger index (FWI) reached 85, 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.

US · United States · 2026-06-27 → 2026-06-27

Snyder Fire, June 2026 Mesa, Grand

Out · last detection 28 Jun 2026, 20:06 UTC

The fire started on 27 June 2026 in Mesa, United States, and satellites saw it burning for 1 day. United States agencies (MTBS / NIFC) mapped an official burnt perimeter of 12,223 hectares, spread across 2 counties.

It is the 14th largest in Colorado since 2016 (of 167 with a page). Number 50 in United States in 2026, of 423.

Burnt area: 12,223ha; official perimeter (MTBS / NIFC)
Duration: 1day; 27 Jun 2026 – 27 Jun 2026
Municipalities hit: 2; counties
Started on: 27 Jun; 2026
Heat detections: 586; in a single hotspot: 538 MW
Danger at start: 85; Very extreme · FWI index
Energy released: 30.9GW; sum of detected power

Play back 28 Jun 2026

HOTSPOTS BY DAY 27 Jun27 Jun

How it evolved, day by day

2728

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

The weather it burned in

34°high

85km/h · peak gust

5%lowest humidity

It had gone one day without rain (1 mm or more) when it started.

This area had burned before

4% of the perimeter overlaps earlier fires recorded since 2016: 416 ha in 2020, 64 ha in 2023.

What happened to each town

Mesa where it started

10,788 ha reached on 27 Jun

1.2 %
Grand

1,461 ha reached on 27 Jun

0.2 %

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)
27 Jun	31.9 °C	7 %	85 km/h	0.0 mm	Very extreme 85
28 Jun after	31.1 °C	7 %	69 km/h	0.0 mm	Very extreme 73
29 Jun after	26.1 °C	10 %	52 km/h	0.0 mm	Extreme 58
30 Jun after	29.8 °C	9 %	66 km/h	0.0 mm	Extreme 67
1 Jul after	31.3 °C	6 %	46 km/h	0.0 mm	Extreme 56
2 Jul after	31.5 °C	7 %	52 km/h	0.0 mm	Extreme 60
3 Jul after	32.7 °C	8 %	51 km/h	0.0 mm	Extreme 60
4 Jul after	34.4 °C	5 %	38 km/h	0.0 mm	Extreme 56
5 Jul after	35.6 °C	5 %	49 km/h	0.0 mm	Extreme 61
6 Jul after	35.2 °C	6 %	37 km/h	0.0 mm	Extreme 57
7 Jul after	35.3 °C	12 %	48 km/h	0.0 mm	Extreme 61
8 Jul after	35.6 °C	10 %	50 km/h	0.0 mm	Extreme 65
9 Jul after	34.3 °C	9 %	45 km/h	0.1 mm	Extreme 61
10 Jul after	35.6 °C	7 %	41 km/h	0.0 mm	Extreme 58
11 Jul after	38.7 °C	4 %	37 km/h	0.0 mm	Extreme 56
12 Jul after	38.2 °C	5 %	38 km/h	0.0 mm	Extreme 58
13 Jul after	37.3 °C	12 %	43 km/h	0.0 mm	Extreme 59
14 Jul after	37.9 °C	12 %	37 km/h	0.0 mm	Extreme 60

Before and after, from space

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

↔

Before · 20 Jun 2026

After · 4 Jul 2026

Before After

If the day is cloudy, change the date: each satellite passes once a day. In false colour the burnt ground looks brown or red.

The smoke

CAMS · Copernicus

On 2 July 2026 the air beside the fire reached 37 µg/m³ of PM2.5. That day averaged 22: 1.4 times the WHO daily guideline (15).

PM2.5 peak37 µg/m³

Days over the guideline3 days

PM10131 µg/m³

Optical depth0.79

WHO 15

2526272829301234567

Good Fair Moderate Poor Very poor Extremely poor

Particles from the Copernicus CAMS model at the centre of the perimeter; these are not measurements in each town. The pale bar is the worst hour, the solid one the daily average.

Open-Meteo.com (CC BY 4.0) · Copernicus Atmosphere Monitoring Service (CAMS)

Detections table · 586Every 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 time	Satellite	FRP (MW)	Lat	Lon

Other fires nearby

All fires in United States ›

Frequently asked questions

How long did the Snyder fire last?: It burned between 27 June 2026 and 27 June 2026: 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 12,223 hectares (122.2 km²). Other tallies, such as daily incident reports, may give slightly different figures.
Which counties burned?: The fire entered 2 counties: Mesa (10,788 ha, 1.2 %); Grand (1,461 ha, 0.2 %).
What was the weather like?: During the fire the temperature reached 34.4 °C, humidity dropped to 5 % and gusts hit 85 km/h. The fire danger index (FWI) reached 85, 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

NASA FIRMS ↗
NIFC · Fire maps ↗

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.

Where it burned