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Sandy Fire, August 2026 Kenedy, Willacy

Out · last detection 2 Sept 2026, 19:25 UTC

The fire started on 29 August 2026 in Kenedy, United States, and satellites saw it burning for 5 days. United States agencies (MTBS / NIFC) mapped an official burnt perimeter of 844 hectares, spread across 2 counties.

It is the 202th largest in Texas since 2016 (of 327 with a page). Number 290 in United States in 2026, of 423.

The power measured by the satellite is low (23.6 MW in the strongest hotspot), more typical of grass or stubble burning, or a slow surface fire, than of a large crown fire.

Compare with…
Burnt area
844ha
official perimeter (MTBS / NIFC)
Duration
5days
29 Aug 2026 – 2 Sept 2026
Municipalities hit
2
counties
Started on
29 Aug
2026
Heat detections
43
in a single hotspot: 24 MW
Danger at start
39
Very high · FWI index
Average daily power
167MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 29 Aug2 Sept
2 Sept 2026

How it evolved, day by day

29 Aug 2026 · 476 MW · 29 30 Aug 2026 · 19 MW · 12 2 Sept 2026 · 6 MW · 2
29 Aug 30 Aug 2 Sept

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

The weather it burned in

41°high
46km/h · peak gust
27%lowest humidity

It had gone 0 days without rain (1 mm or more) when it started. Rain came after the fire: 3.0 mm on 6 Sept.

This area had burned before

No earlier perimeters overlap this fire since 2016, when the satellite record begins.

How big is it?

10 km
It burned the equivalent of 0.5% of the area of London (8.4 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 town

  1. Kenedy where it started
    842 ha reached on 29 Aug
    0.2 %
  2. 2 ha
    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)
29 Aug 37.9 °C 40 % 39 km/h 0.4 mm Very high 39
30 Aug 39.5 °C 35 % 44 km/h 4.4 mm High 26
31 Aug 39.6 °C 30 % 46 km/h 0.1 mm Very high 45
1 Sept 39.7 °C 29 % 43 km/h 0.3 mm Very high 45
2 Sept 41.2 °C 27 % 45 km/h 0.1 mm Very high 48
3 Sept after 41.1 °C 31 % 53 km/h 0.1 mm Extreme 55
4 Sept after 39.4 °C 37 % 43 km/h 0.6 mm Very high 41
5 Sept after 39.0 °C 36 % 44 km/h 0.3 mm Very high 41
6 Sept after 38.0 °C 37 % 41 km/h 3.0 mm High 25

Before and after, from space

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

Before · 22 Aug 2026
After · 9 Sept 2026

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 1 September 2026 the air beside the fire reached 19 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).

PM2.5 peak19 µg/m³
Days over the guideline0 days
PM1042 µg/m³
Optical depth0.23
272829303112345
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 · 43Every 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 Sandy fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 29 August 2026 to 2 September 2026 (5 days). The perimeter dates it from 29 August 2026 to 29 August 2026.
How much area did it burn?
The official perimeter published by United States agencies (MTBS / NIFC) is 844 hectares (8.4 km²). Other tallies, such as daily incident reports, may give slightly different figures.
Which counties burned?
The fire entered 2 counties: Kenedy (842 ha, 0.2 %); Willacy (2 ha, 0.0 %).
What was the weather like?
During the fire the temperature reached 41.2 °C, humidity dropped to 27 % and gusts hit 46 km/h. The fire danger index (FWI) reached 48, 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

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.

Report an error
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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.

How we know this
  • Perimeter: NIFC WFIGS (United States), official.
  • Dates adjusted with the VIIRS detections inside the perimeter, which said 29 August 2026 to 29 August 2026. 43 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.

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.