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Vera fire, 21 September 2024 Vera

Out · last detection 23 Sept 2024, 04:45 UTC

The fire started on 21 September 2024 in Vera, Argentina, and satellites saw it burning for 3 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 2,289 hectares from heat detections, spread across a single municipality.

It is the 96th largest in Santa Fe since 2016 (of 252 with a page). Number 58 in Argentina in 2024, of 141.

Compare with…
Burnt area
2,289ha
GWIS perimeter (Copernicus)
Duration
3days
21 Sept 2024 – 23 Sept 2024
Municipalities hit
1
departments
Started on
21 Sept
2024
Heat detections
69
in a single hotspot: 36 MW
Danger at start
29
High · FWI index
Average daily power
174MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 21 Sept23 Sept
23 Sept 2024

How it evolved, day by day

21 Sept 2024 · 149 MW · 18 22 Sept 2024 · 295 MW · 40 23 Sept 2024 · 78 MW · 11
21 Sept 22 Sept 23 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

39°high
46km/h · peak gust
29%lowest humidity

It had gone one day without rain (1 mm or more) when it started. Rain came after the fire: 5.6 mm on 24 Sept.

This area had burned before

97% of the perimeter overlaps earlier fires recorded since 2016: 1,506 ha in 2018, 2,275 ha in 2020, 1,451 ha in 2021, 24 ha in 2022. Part of it burned more than once, so the yearly figures add up to more than the 2,229 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 1.4% of the area of London (23 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. Vera where it started
    2,290 ha reached on 21 Sept
    0.1 %

Burnt area inside each municipality, from crossing the GWIS 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)
21 Sept 32.1 °C 35 % 43 km/h 0.0 mm High 29
22 Sept 39.1 °C 29 % 46 km/h 0.2 mm High 36
23 Sept 33.1 °C 41 % 41 km/h 0.0 mm High 34
24 Sept after 22.7 °C 68 % 39 km/h 5.6 mm Very low 3

Before and after, from space

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

Before · 14 Sept 2024
After · 30 Sept 2024

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 23 September 2024 the air beside the fire reached 110 µg/m³ of PM2.5. That day averaged 64: 4.3 times the WHO daily guideline (15).

PM2.5 peak110 µg/m³
Days over the guideline6 days
PM10158 µg/m³
Optical depth3.91
1920212223242526
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 · 69Every 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 Argentina ›

Frequently asked questions

How long did the Vera fire last?
GWIS (Copernicus) dates it between 21 September 2024 and 23 September 2024: 3 days between the first and last heat detection of the perimeter.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 2,289 hectares (22.9 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Vera (2,290 ha, 0.1 %).
What was the weather like?
During the fire the temperature reached 39.1 °C, humidity dropped to 29 % and gusts hit 46 km/h. The fire danger index (FWI) reached 36, class High.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Argentina (geoBoundaries). 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 · 100

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
What do you think is wrong?

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 · 100.

How we know this
  • Perimeter: GWIS (Copernicus), rebuilt from heat detections rather than mapped on imagery.
  • Dates from the perimeter: the VIIRS detections inside it did not change them. 69 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 comes from the Copernicus Global Wildfire Information System (GWIS), which rebuilds it from MODIS and VIIRS heat detections and publishes it under CC BY 4.0. It is not measured on imagery as in Europe, so it is an estimate. Heat detections come from the VIIRS sensors aboard Suomi-NPP and NOAA-20, distributed by NASA FIRMS at 375 m resolution. Municipal boundaries come from geoBoundaries ADM2 (Creative Commons Attribution 3.0 Intergovernmental Organisations (CC BY 3.0 IGO)). The area per municipality is computed by WorldFires by crossing the perimeter with those boundaries, so it may differ from each country’s official figure.