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CO · Colombia · –

La Primavera fire, 25 March 2023 La Primavera

Out · last detection 26 Mar 2023, 18:18 UTC

The fire started on 25 March 2023 in La Primavera, Colombia, and satellites saw it burning for 2 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 1,794 hectares from heat detections, spread across a single municipality.

It is the 242th largest in Vichada since 2016 (of 327 with a page). Number 41 in Colombia in 2023, of 57.

The power measured by the satellite is low (27.5 MW in the strongest hotspot), more typical of grass or stubble burning, or a slow surface fire, than of a large crown fire.

Burnt area
1,794ha
GWIS perimeter (Copernicus)
Duration
2days
25 Mar 2023 – 26 Mar 2023
Municipalities hit
1
municipalities
Started on
25 Mar
2023
Heat detections
34
in a single hotspot: 28 MW
Danger at start
19
Moderate · FWI index
Average daily power
223MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 25 Mar26 Mar
26 Mar 2023

How it evolved, day by day

25 Mar 2023 · 424 MW · 27 26 Mar 2023 · 22 MW · 7
25 Mar 26 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

33°high
37km/h · peak gust
46%lowest humidity

It had gone 11 days without rain (1 mm or more) when it started. Rain came after the fire: 1.2 mm on 31 Mar.

This area had burned before

41% of the perimeter overlaps earlier fires recorded since 2016: 143 ha in 2017, 700 ha in 2018. Part of it burned more than once, so the yearly figures add up to more than the 730 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 1.1% of the area of London (18 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. La Primavera where it started
    1,805 ha reached on 25 Mar
    0.1 %

Burnt area inside each municipality, from crossing the GWIS 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 2025
Built-up area< 0.1 ha
Residents< 20

Inside the perimeter there was no noticeable built-up land and almost nobody lived there (GHSL 2025, 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. The GHSL 2025 epoch is a projection made from 2020 and earlier data.

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)
25 Mar 32.6 °C 46 % 37 km/h 0.0 mm Moderate 19
26 Mar 31.2 °C 54 % 31 km/h 0.7 mm Low 11
27 Mar after 33.0 °C 48 % 34 km/h 0.1 mm Moderate 14
28 Mar after 31.6 °C 47 % 31 km/h 0.1 mm Moderate 14
29 Mar after 32.8 °C 45 % 34 km/h 0.0 mm Moderate 17
30 Mar after 33.0 °C 45 % 30 km/h 0.0 mm Moderate 16
31 Mar after 33.5 °C 48 % 37 km/h 1.2 mm Moderate 11

Its twins: fires that started in the same weather

It started with an FWI of 19.0, a minimum humidity of 46% and 11 days without rain. Fires in the area that started in weather like this since 2016: 26.

FWI at the start 19.0
Minimum humidity 46 %
Days without rain 11
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

La Primavera fire, February 2023
2,359 ha 3 days FWI 20.6 Min. humidity 46 % 58 km away, in 2023

First rain (1 mm or more) after it ended: 1.4 mm on 15 Feb.

What happened to them

5 days
median duration
2,296 ha
median area
100 %
went past 1,000 ha
2.6 mm
rain at the end (median; 15 of 26 had it)

It burned an area similar to its twins (1,794 ha against a median of 2,296 ha) and lasted 2 days, against 5 days.

In 11 of 26, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 2.6 mm.

This is a bank of analogues: it shows what usually happens, not what will happen. With fewer than 15 twins we give no figures. How we calculate it

How it ended

1.2 mmfirst rain
31 Mar5 days after it ended
37km/h · max. gust

It was considered over on 26 Mar, and on 31 Mar 1.2 mm fell. We do not know whether the rain or the firefighters put it out. Twins with rain when they ended: 15 of 26, with a median of 2.6 mm.

Weather on this page: Open-Meteo.com (CC BY 4.0) · Copernicus Climate Change Service (ERA5)

How a twin is chosen

  • Same area: fires that have already ended, less than 250 km from this one, since 2016.
  • Same start: we compare the FWI on the first day, the minimum humidity that day and the run of days without rain before it. The slider sets how much they may differ.
  • Only pages with final weather data (ERA5 reanalysis) calculated in the same way as this fire’s; agricultural and grass burns and pages with data under review are left out.
  • Fires burning at the same time as this one (a week before or after) are left out: they share the same spell of weather and do not count as a precedent.
  • They are sorted by similarity, and the outlines of the first five are drawn.

How we calculate it

Before and after, from space

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

Before · 18 Mar 2023
After · 2 Apr 2023

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 27 March 2023 the air beside the fire reached 42 µg/m³ of PM2.5. That day averaged 27: 1.8 times the WHO daily guideline (15).

PM2.5 peak42 µg/m³
Days over the guideline7 days
PM1062 µg/m³
Optical depth0.79
23 Mar25 Mar27 Mar29 Mar
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 · 34Every 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 Colombia

Frequently asked questions

How long did the La Primavera fire last?
GWIS (Copernicus) dates it between 25 March 2023 and 26 March 2023: 2 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 1,794 hectares (17.9 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered La Primavera (1,805 ha, 0.1 %).
What was the weather like?
During the fire the temperature reached 32.6 °C, humidity dropped to 46 % and gusts hit 37 km/h. The fire danger index (FWI) reached 19, class Moderate.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Colombia (geoBoundaries). It is not an official report.
How did the fires that started in similar weather in this area end?
Fires less than 250 km away that started since 2016 with a similar FWI, humidity and dry spell: 26. Their median duration was 5 days and their median area 2,296 ha; 100 % went past 1,000 ha. In 11 of 26, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 2.6 mm.

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: 123 · 119 · 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.

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 123 · 119.

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. 34 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 2025, 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 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 4.0 International (CC BY 4.0)). 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.