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Nyirol fire, 8 January 2017 Nyirol, Ayod

Out · last detection 12 Jan 2017, 10:41 UTC

The fire started on 8 January 2017 in Nyirol, South Sudan, and satellites saw it burning for 5 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 5,901 hectares from heat detections, spread across 2 municipalities.

It is the 315th largest in Jonglei since 2016 (of 427 with a page). Number 141 in South Sudan in 2017, of 203.

Burnt area
5,901ha
GWIS perimeter (Copernicus)
Duration
5days
8 Jan 2017 – 12 Jan 2017
Municipalities hit
2
counties
Started on
8 Jan
2017
Heat detections
136
in a single hotspot: 97 MW
Danger at start
69
Extreme · FWI index
Energy released
1.7GW
sum of detected power

Where it burned

12 Jan 2017
HOTSPOTS BY DAY 8 Jan12 Jan

How it evolved, day by day

89101112

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

The weather it burned in

40°high
49km/h · peak gust
7%lowest humidity

It had gone 50 days without rain (1 mm or more) when it started.

This area had burned before

9% of the perimeter overlaps earlier fires recorded since 2016: 548 ha in 2016.

What happened to each town

  1. Nyirol where it started
    3,940 ha reached on 8 Jan
    0.6 %
  2. Ayod
    2,002 ha reached on 8 Jan
    0.2 %

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)
8 Jan 38.9 °C 9 % 49 km/h 0.0 mm Extreme 69
9 Jan 37.9 °C 10 % 48 km/h 0.0 mm Extreme 69
10 Jan 38.0 °C 13 % 42 km/h 0.0 mm Extreme 65
11 Jan 39.2 °C 12 % 40 km/h 0.0 mm Extreme 64
12 Jan 39.9 °C 7 % 40 km/h 0.0 mm Extreme 64
13 Jan after 39.9 °C 7 % 40 km/h 0.0 mm Extreme 66
14 Jan after 40.0 °C 7 % 32 km/h 0.0 mm Extreme 58
15 Jan after 40.6 °C 8 % 34 km/h 0.0 mm Extreme 59
16 Jan after 40.3 °C 8 % 37 km/h 0.0 mm Extreme 64
17 Jan after 39.8 °C 9 % 36 km/h 0.0 mm Extreme 61
18 Jan after 40.2 °C 9 % 34 km/h 0.0 mm Extreme 60
19 Jan after 40.2 °C 9 % 37 km/h 0.0 mm Extreme 64
20 Jan after 40.0 °C 10 % 38 km/h 0.0 mm Extreme 66
21 Jan after 40.1 °C 11 % 44 km/h 0.0 mm Very extreme 70
22 Jan after 40.2 °C 11 % 43 km/h 0.0 mm Very extreme 72

Before and after, from space

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

Before · 1 Jan 2017
After · 19 Jan 2017

If the day is cloudy, change the date: each satellite passes once a day. In false colour the burnt ground looks brown or red.

Detections table · 136Every 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 South Sudan ›

Frequently asked questions

How long did the Nyirol fire last?
GWIS (Copernicus) dates it between 8 January 2017 and 12 January 2017: 5 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 5,901 hectares (59.0 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Nyirol (3,940 ha, 0.6 %); Ayod (2,002 ha, 0.2 %).
What was the weather like?
During the fire the temperature reached 39.9 °C, humidity dropped to 7 % and gusts hit 49 km/h. The fire danger index (FWI) reached 69, class Extreme.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of South Sudan (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.

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.

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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.