Surrey fire, May 2020 Surrey
The fire started on 31 May 2020 in Surrey, United Kingdom, and satellites saw it burning for 1 day. Copernicus mapped a burnt perimeter of 100 hectares from satellite imagery, spread across a single municipality.
It is the 29th largest in England since 2016 (of 29 with a page). Number 16 in United Kingdom in 2020, of 16.
- Burnt area
- 100ha
- Copernicus perimeter
- Duration
- 1day
- 31 May 2020 – 31 May 2020
- Municipalities hit
- 1
- districts
- Started on
- 31 May
- 2020
- Heat detections
- 9
- in a single hotspot: 35 MW
- Danger at start
- 27
- High · FWI index
- Energy released
- 133MW
- sum of detected power
Where it burned
How it evolved, day by day
Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.
The weather it burned in
It had gone 29 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
-
Surrey where it started99 ha reached on 31 May0.1 %
Burnt area inside each municipality, 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.
What burned
- Other natural land100 %
Protected area affected (EFFIS layer): 99 %
Land cover inside the perimeter according to Corine Land Cover, as reported by Copernicus.
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) |
|---|---|---|---|---|---|
| 31 May | 24.2 °C | 31 % | 48 km/h | 0.0 mm | High 27 |
| 1 Jun after | 24.2 °C | 37 % | 39 km/h | 0.0 mm | High 24 |
| 2 Jun after | 24.3 °C | 30 % | 30 km/h | 0.0 mm | Moderate 21 |
| 3 Jun after | 18.2 °C | 54 % | 39 km/h | 0.9 mm | Moderate 14 |
| 4 Jun after | 15.2 °C | 51 % | 45 km/h | 0.1 mm | Moderate 16 |
| 5 Jun after | 15.4 °C | 42 % | 56 km/h | 0.3 mm | High 22 |
| 6 Jun after | 12.8 °C | 55 % | 65 km/h | 0.3 mm | High 24 |
| 7 Jun after | 18.7 °C | 46 % | 34 km/h | 0.0 mm | Moderate 15 |
| 8 Jun after | 16.3 °C | 54 % | 34 km/h | 0.0 mm | Moderate 17 |
| 9 Jun after | 17.4 °C | 50 % | 26 km/h | 0.0 mm | Moderate 16 |
| 10 Jun after | 14.5 °C | 66 % | 29 km/h | 0.6 mm | Moderate 13 |
Before and after, from space
Drag the line to compare the same ground before the fire and after it.
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 · CopernicusOn 3 June 2020 the air beside the fire reached 16 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).
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 · 9Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
Frequently asked questions
- How long did the Surrey fire last?
- Copernicus dates it between 31 May 2020 and 31 May 2020: 1 day between the first and last image with fire.
- How much area did it burn?
- The perimeter Copernicus measured from satellite imagery is 100 hectares (1.0 km²). Official national figures may differ.
- Which municipalities burned?
- The fire only entered Surrey (99 ha, 0.1 %).
- What was the weather like?
- During the fire the temperature reached 24.2 °C, humidity dropped to 31 % and gusts hit 48 km/h. The fire danger index (FWI) reached 27, class High.
- Where does this data come from?
- From the EFFIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of United Kingdom (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: 999 · 112
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
Where this data comes from
The perimeter and land cover come from the Copernicus European Forest Fire Information System (EFFIS), measured on MODIS and Sentinel-2 imagery and published under CC BY 4.0. 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 ADM3 (Open Government Licence v3.0). The area per municipality is computed by WorldFires by crossing the perimeter with those boundaries, so it may differ slightly from each country’s official figure.