Zugdidi fire, January 2023 Zugdidi
The fire started on 20 January 2023 in Zugdidi, Georgia, and satellites saw it burning for 3 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 525 hectares from heat detections, spread across a single municipality.
It is the 14th largest in Samegrelo-Zemo Svaneti since 2016 (of 26 with a page). Number 5 in Georgia in 2023, of 13.
The power measured by the satellite is low (12.8 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
- 525ha
- GWIS perimeter (Copernicus)
- Duration
- 3days
- 20 Jan 2023 – 22 Jan 2023
- Municipalities hit
- 1
- municipalities
- Started on
- 20 Jan
- 2023
- Heat detections
- 10
- in a single hotspot: 13 MW
- Danger at start
- 8
- Low · FWI index
- Average daily power
- 34MW
- detected power per day, on average
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 11 days without rain (1 mm or more) when it started. Rain came after the fire: 1.7 mm on 28 Jan.
This area had burned before
96% of the perimeter overlaps earlier fires recorded since 2016: 320 ha in 2016, 204 ha in 2017, 322 ha in 2020, 322 ha in 2021, 37 ha in 2022. Part of it burned more than once, so the yearly figures add up to more than the 506 ha that had burned before.
- 322 ha Zugdidi fire, March 2020 2,785 ha in total; the hectares shown are those it shares with this fire
- 322 ha Zugdidi fire, January 2021 496 ha in total; the hectares shown are those it shares with this fire
- 320 ha Zugdidi fire, January 2016 1,082 ha in total; the hectares shown are those it shares with this fire
- 37 ha Zugdidi fire, March 2022 399 ha in total; the hectares shown are those it shares with this fire
- 2 ha Zugdidi fire, March 2017 532 ha in total; the hectares shown are those it shares with this fire
What happened to each town
-
Zugdidi where it started526 ha reached on 20 Jan0.8 %
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) |
|---|---|---|---|---|---|
| 20 Jan | 18.4 °C | 31 % | 45 km/h | 0.0 mm | Low 8 |
| 21 Jan | 15.7 °C | 28 % | 47 km/h | 0.0 mm | Low 9 |
| 22 Jan | 14.9 °C | 30 % | 49 km/h | 0.0 mm | Low 9 |
| 23 Jan after | 14.0 °C | 30 % | 42 km/h | 0.0 mm | Low 8 |
| 24 Jan after | 13.3 °C | 36 % | 22 km/h | 0.0 mm | Low 6 |
| 25 Jan after | 11.4 °C | 37 % | 15 km/h | 0.0 mm | Very low 5 |
| 26 Jan after | 10.2 °C | 48 % | 15 km/h | 0.0 mm | Very low 4 |
| 27 Jan after | 12.8 °C | 34 % | 34 km/h | 0.0 mm | Low 7 |
| 28 Jan after | 13.0 °C | 23 % | 37 km/h | 1.7 mm | Very low 3 |
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 19 January 2023 the air beside the fire reached 348 µg/m³ of PM2.5. That day averaged 138: 9.2 times the WHO daily 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 · 10Every 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 Zugdidi fire last?
- GWIS (Copernicus) dates it between 20 January 2023 and 22 January 2023: 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 525 hectares (5.2 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Zugdidi (526 ha, 0.8 %).
- What was the weather like?
- During the fire the temperature reached 18.4 °C, humidity dropped to 28 % and gusts hit 49 km/h. The fire danger index (FWI) reached 9, class Low.
- Where does this data come from?
- From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Georgia (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: 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 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 (Public Domain). 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.