How long did the Sand fire last?

It burned between 25 July 2024 and 25 July 2024: 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 3,120 hectares (31.2 km²). Other tallies, such as daily incident reports, may give slightly different figures.

Which counties burned?

The fire only entered Grant (3,102 ha, 0.3 %).

What was the weather like?

During the fire the temperature reached 34.0 °C, humidity dropped to 17 % and gusts hit 48 km/h. The fire danger index (FWI) reached 40, class Very 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.

US · United States · 2024-07-25 → 2024-07-25

Sand Fire, July 2024 Grant

Out · last measured on 25 Jul 2024

The fire started on 25 July 2024 in Grant, United States, and satellites saw it burning for 1 day. United States agencies (MTBS / NIFC) mapped an official burnt perimeter of 3,120 hectares, spread across a single county.

It is the 136th largest in Oregon since 2016 (of 327 with a page). Number 112 in United States in 2024, of 371.

Burnt area: 3,120ha; official perimeter (MTBS / NIFC)
Duration: 1day; 25 Jul 2024 – 25 Jul 2024
Municipalities hit: 1; counties
Started on: 25 Jul; 2024
Heat detections: 17; in a single hotspot: 27 MW
Danger at start: 40; Very high · FWI index

HOTSPOTS BY DAY 25 Jul25 Jul

The weather it burned in

34°high

48km/h · peak gust

17%lowest humidity

It had gone 3 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.

What happened to each town

Grant where it started

3,102 ha reached on 31 Jul

0.3 %

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)
25 Jul	24.5 °C	25 %	43 km/h	0.0 mm	Very high 40
26 Jul after	26.7 °C	20 %	34 km/h	0.0 mm	Very high 38
27 Jul after	25.3 °C	22 %	38 km/h	0.0 mm	High 38
28 Jul after	25.6 °C	17 %	36 km/h	0.0 mm	Very high 40
29 Jul after	24.4 °C	26 %	48 km/h	1.5 mm	High 24
30 Jul after	23.5 °C	37 %	35 km/h	1.6 mm	Moderate 13
31 Jul after	30.0 °C	20 %	27 km/h	0.0 mm	High 30
1 Aug after	34.0 °C	17 %	31 km/h	0.0 mm	Very high 40
2 Aug after	35.3 °C	13 %	28 km/h	0.0 mm	Very high 49
3 Aug after	27.5 °C	30 %	48 km/h	0.2 mm	Very high 41
4 Aug after	31.0 °C	24 %	34 km/h	0.4 mm	High 36
5 Aug after	31.4 °C	18 %	35 km/h	0.0 mm	Very high 42
6 Aug after	28.8 °C	16 %	41 km/h	0.0 mm	Very high 43
7 Aug after	28.8 °C	14 %	27 km/h	0.0 mm	Very high 42
8 Aug after	29.3 °C	19 %	36 km/h	0.0 mm	Very high 44
9 Aug after	29.5 °C	19 %	36 km/h	0.0 mm	Very high 44
10 Aug after	28.2 °C	22 %	35 km/h	0.3 mm	Very high 43
11 Aug after	28.8 °C	18 %	35 km/h	0.0 mm	Very high 43

Before and after, from space

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

↔

Before · 18 Jul 2024

After · 1 Aug 2024

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 24 July 2024 the air beside the fire reached 102 µg/m³ of PM2.5. That day averaged 62: 4.1 times the WHO daily guideline (15).

PM2.5 peak102 µg/m³

Days over the guideline6 days

PM10146 µg/m³

Optical depth0.98

WHO 15

232425262728

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 · 17Every 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 Sand fire last?: It burned between 25 July 2024 and 25 July 2024: 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 3,120 hectares (31.2 km²). Other tallies, such as daily incident reports, may give slightly different figures.
Which counties burned?: The fire only entered Grant (3,102 ha, 0.3 %).
What was the weather like?: During the fire the temperature reached 34.0 °C, humidity dropped to 17 % and gusts hit 48 km/h. The fire danger index (FWI) reached 40, class Very 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

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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What really happened?

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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.

Where it burned