Fire near Bié (AO)

12.97°S, 17.14°E · first detected on 22 September at 14:19

What the satellites measured

This fire was tracked from 22 September at 14:19 to 22 October at 02:22, that is at least 30 days: the clustering window stops there, and the fire or heat source may be older, through 2,550 satellite detections. The detected extent reaches 36,147 ha.

Detected extent: 36,147 ha
Cumulative power: 16,793 MW
Peak power, one pixel: 61 MW
VIIRS and MODIS detections: 2,550
Estimated emissions: 767 t of carbon; Carbon burnt in the 0.1 degree cells (about 10 km) around the fire, from 5 October 2026 to 21 October 2026. An order-of-magnitude estimate from GFAS (ECMWF, Copernicus CAMS): it also counts neighbouring fires in the same cell. Contains modified Copernicus Atmosphere Monitoring Service information (2026). Published data stop on 21 October 2026.

These four figures cover the polar orbits alone, the ones that measure an area. The pass table below also counts geostationary detections, more frequent but too coarse for geometry, and its power column sums a whole pass where the peak above is that of a single pixel.

“Detected extent” is not “burned area”: it is the union of the ground footprints of the satellite pixels, and a pixel counts in full (375 m for VIIRS, 1 km for MODIS) even when only a forest edge is burning. Compared with press figures it is in practice one and a half to three times the area reported. Detections taken at the edge of the scan swath, too coarse to measure anything at all, are excluded. These figures come from thermal detection and are not an official assessment: only the emergency services and the competent authorities are authoritative.

Replay how the fire spread

The map is framed on this fire's footprint and loads only its detections. The timeline below covers the period in which satellites saw it, from the first to the last detection, with twelve hours before and twenty-four after; the ticks on the bar mark the emergency services' announcements that fall within it. The cursor opens on the most powerful pass, and playback replays the whole fire in about thirty seconds. “1 h” shows what is burning within an hour of the chosen moment : the map then follows the power curve below and empties when it falls. “24 h” stacks twenty-four hours : a fire stays visible between two satellite passes, which come two to four times a day. Both are true, but they say different things.

How the radiative power evolved

One point per satellite pass: the sum of the fire radiative power measured over the fire. This is the curve that says whether the fire eased off or picked up again, which no cumulative figure shows. The window covers 30 days; beyond that, clustering would merge two successive fires in the same place.

Fire dynamics

Loading history…

Satellite passes in detail

Pass	Power summed over the pass	Detections	Sensor
22 October at 02:22	1 MW	1	N21
21 October at 17:19	25 MW	1	Met10
21 October at 16:04	25 MW	1	Met10
21 October at 15:14	5 MW	1	N21
21 October at 14:34	46 MW	1	Met9
21 October at 14:29	188 MW	56	N20
21 October at 14:10	72 MW	16	N
21 October at 14:04	58 MW	1	Met9
21 October at 13:49	55 MW	1	Met9
21 October at 13:49	58 MW	1	Met10
21 October at 13:34	57 MW	1	Met10
21 October at 13:34	60 MW	1	Met9
21 October at 13:19	54 MW	1	Met9
21 October at 13:04	57 MW	1	Met9
21 October at 12:53	21 MW	2	Met12
21 October at 12:49	58 MW	1	Met9
21 October at 01:56	1 MW	2	N20
20 October at 15:03	47 MW	3	Met12
20 October at 14:46	108 MW	18	N20
20 October at 14:27	135 MW	28	N
20 October at 13:51	87 MW	12	N21
20 October at 11:04	45 MW	1	Met10
19 October at 17:20	45 MW	2	Met9
19 October at 17:19	25 MW	1	Met10
19 October at 17:05	29 MW	1	Met9
19 October at 17:04	31 MW	1	Met10
19 October at 16:49	107 MW	3	Met10
19 October at 16:35	37 MW	1	Met9
19 October at 16:34	37 MW	1	Met10
19 October at 16:23	11 MW	1	Met12
19 October at 16:13	21 MW	2	Met12
19 October at 15:08	99 MW	21	N20
19 October at 14:49	244 MW	54	N
19 October at 14:10	150 MW	26	N21
18 October at 15:06	9 MW	2	N
18 October at 14:29	62 MW	11	N21
17 October at 15:25	4 MW	1	N
17 October at 14:49	63 MW	10	N21
17 October at 14:04	118 MW	25	N20
17 October at 13:47	8 MW	2	N
16 October at 15:08	52 MW	8	N21
16 October at 14:23	202 MW	57	N20
16 October at 14:04	80 MW	16	N
16 October at 02:35	1 MW	2	N21
16 October at 01:50	3 MW	5	N20
15 October at 14:42	22 MW	7	N20
15 October at 14:21	24 MW	5	N
15 October at 13:47	4 MW	1	N21
14 October at 15:01	116 MW	17	N20
14 October at 14:42	161 MW	42	N
14 October at 14:04	131 MW	27	N21
13 October at 15:21	20 MW	3	N20
13 October at 14:59	51 MW	10	N
13 October at 14:23	44 MW	13	N21
11 October at 15:01	24 MW	5	N21
11 October at 14:19	42 MW	7	N20
11 October at 13:57	20 MW	4	N
10 October at 14:36	11 MW	6	N20
10 October at 14:17	4 MW	1	N
9 October at 14:55	3 MW	1	N20
9 October at 14:36	5 MW	2	N
8 October at 15:14	153 MW	25	N20
8 October at 14:53	525 MW	79	N
8 October at 14:19	618 MW	110	N21
7 October at 16:40	357 MW	26	Aqua
7 October at 15:13	212 MW	51	N
7 October at 14:36	337 MW	36	N21
7 October at 13:51	238 MW	49	N20
6 October at 14:55	17 MW	4	N21
6 October at 14:10	64 MW	17	N20
6 October at 13:51	5 MW	1	N
6 October at 02:58	0 MW	1	N
6 October at 02:22	2 MW	1	N21
5 October at 16:59	54 MW	4	Aqua
5 October at 15:14	252 MW	22	N21
5 October at 14:29	540 MW	106	N20
5 October at 14:10	321 MW	51	N
5 October at 13:34	222 MW	19	N21
4 October at 16:22	100 MW	7	Aqua
4 October at 14:46	253 MW	46	N20
4 October at 14:27	253 MW	54	N
4 October at 13:51	271 MW	41	N21
3 October at 15:08	4 MW	1	N20
3 October at 14:49	8 MW	2	N
3 October at 14:12	6 MW	1	N21
3 October at 09:26	7 MW	1	Terra
3 October at 02:13	1 MW	2	N
2 October at 16:44	10 MW	2	Aqua
2 October at 15:06	20 MW	3	N
2 October at 14:29	64 MW	18	N21
2 October at 13:47	4 MW	1	N20
1 October at 16:08	62 MW	2	Aqua
1 October at 15:25	127 MW	18	N
1 October at 14:49	440 MW	64	N21
1 October at 14:04	311 MW	45	N20
1 October at 13:45	72 MW	9	N
30 September at 17:07	15 MW	1	Aqua
30 September at 15:08	344 MW	35	N21
30 September at 14:23	747 MW	168	N20
30 September at 14:04	356 MW	68	N
29 September at 16:29	170 MW	12	Aqua
29 September at 14:42	780 MW	121	N20
29 September at 14:21	723 MW	97	N
29 September at 13:47	417 MW	72	N21
29 September at 02:07	2 MW	3	N20
28 September at 14:59	845 MW	90	N20
28 September at 14:04	1,021 MW	109	N21
28 September at 09:29	5 MW	1	Terra
28 September at 02:28	2 MW	2	N20
28 September at 02:07	1 MW	1	N
28 September at 01:31	2 MW	2	N21
27 September at 16:52	226 MW	19	Aqua
27 September at 15:21	434 MW	32	N20
27 September at 14:59	257 MW	44	N
27 September at 14:23	327 MW	52	N21
27 September at 13:40	53 MW	6	N20
27 September at 02:26	2 MW	2	N
27 September at 01:50	1 MW	1	N21
26 September at 16:14	49 MW	3	Aqua
26 September at 15:21	180 MW	30	N
26 September at 14:42	297 MW	38	N21
26 September at 13:57	188 MW	40	N20
26 September at 03:05	1 MW	1	N20
26 September at 02:45	1 MW	1	N
26 September at 02:07	3 MW	4	N21
25 September at 21:21	7 MW	1	Terra
25 September at 17:14	117 MW	3	Aqua
25 September at 15:01	318 MW	42	N21
25 September at 14:17	311 MW	55	N20
25 September at 13:57	151 MW	27	N
24 September at 14:36	5 MW	2	N20
23 September at 14:53	199 MW	20	N20
23 September at 14:35	226 MW	34	N
23 September at 13:57	304 MW	31	N21

8 other fires near Bié (AO)

Separate fires, apart in time or in space, not pieces of this one. A single municipality can have several over one summer, and a forest massif often covers more than a hundred square kilometres.

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