Fire near Bahia (BR)

14.72°S, 41.75°W · first detected on 23 September at 17:58

What the satellites measured

This fire was tracked from 23 September at 17:58 to 22 October at 19:13, that is 29 days, through 512 satellite detections. The detected extent reaches 14,450 ha.

Detected extent: 14,450 ha
Cumulative power: 14,714 MW
Peak power, one pixel: 358 MW
VIIRS and MODIS detections: 512
Estimated emissions: 8.2 kt 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 21:53	12 MW	1	Met12
22 October at 21:03	21 MW	2	Met12
22 October at 20:43	44 MW	3	Met12
22 October at 20:33	77 MW	5	Met12
22 October at 20:03	30 MW	2	Met12
22 October at 19:53	119 MW	5	Met12
22 October at 19:49	47 MW	1	Met10
22 October at 19:43	33 MW	2	Met12
22 October at 19:34	51 MW	1	Met10
22 October at 19:33	95 MW	5	Met12
22 October at 19:23	38 MW	3	Met12
22 October at 19:13	70 MW	4	Met12
22 October at 19:13	42 MW	3	N20
22 October at 19:10	41 MW	1	G19
22 October at 19:04	91 MW	1	Met10
22 October at 19:03	42 MW	3	Met12
22 October at 19:00	84 MW	2	G19
22 October at 18:56	146 MW	2	G19FRP
22 October at 18:54	69 MW	3	N
22 October at 18:53	93 MW	3	Met12
22 October at 18:50	222 MW	3	G19
22 October at 18:49	70 MW	1	Met10
22 October at 18:40	50 MW	1	G19
22 October at 18:18	26 MW	6	N21
22 October at 17:23	10 MW	1	Met12
22 October at 16:43	22 MW	2	Met12
22 October at 16:33	37 MW	3	Met12
22 October at 16:23	73 MW	4	Met12
22 October at 16:16	42 MW	1	G19FRP
22 October at 16:13	14 MW	1	Met12
22 October at 15:53	37 MW	2	Met12
21 October at 22:23	21 MW	2	Met12
21 October at 22:13	29 MW	2	Met12
21 October at 22:03	25 MW	2	Met12
21 October at 21:53	22 MW	2	Met12
21 October at 21:33	10 MW	1	Met12
21 October at 19:13	10 MW	1	N
21 October at 18:35	11 MW	1	N21
21 October at 17:52	4 MW	1	N20
20 October at 21:53	26 MW	2	Met12
20 October at 21:23	48 MW	2	Met12
20 October at 18:11	10 MW	1	N20
20 October at 15:10	31 MW	1	G19
19 October at 20:58	21 MW	1	Aqua
19 October at 19:13	8 MW	1	N21
19 October at 18:30	5 MW	1	N20
19 October at 18:09	4 MW	1	N
19 October at 17:33	12 MW	2	N21
17 October at 19:07	30 MW	5	N20
17 October at 18:48	4 MW	1	N
17 October at 18:11	9 MW	1	N21
17 October at 13:38	79 MW	3	Terra
16 October at 20:43	113 MW	1	Aqua
16 October at 19:07	17 MW	3	N
16 October at 18:30	17 MW	2	N21
16 October at 17:46	16 MW	2	N20
15 October at 20:04	394 MW	3	Aqua
15 October at 19:26	235 MW	14	N
15 October at 18:50	877 MW	30	N21
15 October at 18:07	631 MW	26	N20
15 October at 17:46	335 MW	8	N
15 October at 01:31	10 MW	2	Terra
14 October at 21:04	481 MW	9	Aqua
14 October at 19:07	796 MW	23	N21
14 October at 18:24	79 MW	9	N20
14 October at 18:03	169 MW	6	N
14 October at 17:29	28 MW	4	N21
14 October at 13:19	105 MW	7	Terra
14 October at 00:54	85 MW	3	Terra
13 October at 20:26	314 MW	9	Aqua
13 October at 18:42	123 MW	10	N20
13 October at 18:24	80 MW	8	N
13 October at 17:46	144 MW	9	N21
12 October at 19:02	45 MW	5	N20
11 October at 19:20	7 MW	1	N20
11 October at 19:01	41 MW	6	N
11 October at 18:24	87 MW	3	N21
11 October at 17:39	173 MW	5	N20
10 October at 20:09	48 MW	2	Aqua
10 October at 19:20	193 MW	18	N
10 October at 18:42	307 MW	8	N21
10 October at 17:58	57 MW	6	N20
10 October at 01:33	13 MW	2	Terra
9 October at 19:02	118 MW	4	N21
9 October at 18:18	10 MW	2	N20
9 October at 17:58	34 MW	4	N
9 October at 13:21	14 MW	2	Terra
8 October at 20:32	554 MW	16	Aqua
8 October at 18:35	191 MW	9	N20
8 October at 18:16	125 MW	7	N
8 October at 17:39	372 MW	8	N21
7 October at 18:56	164 MW	5	N20
7 October at 18:37	183 MW	4	N
7 October at 17:58	5 MW	2	N21
6 October at 20:56	92 MW	2	Aqua
6 October at 19:13	127 MW	5	N20
6 October at 18:54	57 MW	7	N
6 October at 18:18	35 MW	4	N21
6 October at 17:33	22 MW	4	N20
6 October at 13:04	8 MW	1	Terra
5 October at 20:17	667 MW	7	Aqua
5 October at 19:13	63 MW	8	N
5 October at 18:35	37 MW	2	N21
5 October at 17:52	12 MW	3	N20
3 October at 18:30	11 MW	2	N20
3 October at 18:09	12 MW	2	N
2 October at 20:02	761 MW	5	Aqua
2 October at 18:50	144 MW	16	N20
2 October at 18:30	416 MW	11	N
2 October at 17:52	327 MW	10	N21
2 October at 06:17	1 MW	1	N20
1 October at 21:02	205 MW	5	Aqua
1 October at 19:07	233 MW	22	N20
1 October at 18:48	766 MW	17	N
1 October at 18:11	285 MW	10	N21
1 October at 13:04	27 MW	3	Terra
30 September at 20:24	283 MW	7	Aqua
30 September at 19:07	507 MW	9	N
30 September at 18:30	914 MW	5	N21
30 September at 17:46	3 MW	1	N20
29 September at 19:26	989 MW	10	N
29 September at 18:50	970 MW	10	N21
29 September at 18:05	59 MW	4	N20
29 September at 17:46	49 MW	6	N
28 September at 20:47	151 MW	7	Aqua
28 September at 19:07	725 MW	13	N21
28 September at 18:24	92 MW	1	N20
28 September at 18:03	19 MW	2	N
28 September at 17:29	143 MW	6	N21
27 September at 20:09	19 MW	1	Aqua
27 September at 18:41	4 MW	1	N20
27 September at 18:22	34 MW	6	N
27 September at 17:46	54 MW	3	N21
26 September at 19:02	287 MW	18	N20
26 September at 18:41	107 MW	6	N
26 September at 18:05	50 MW	5	N21
25 September at 19:20	84 MW	4	N20
25 September at 19:00	79 MW	8	N
25 September at 18:24	95 MW	10	N21
25 September at 17:39	16 MW	2	N20
24 September at 18:41	7 MW	1	N21
24 September at 17:58	6 MW	2	N20
23 September at 20:51	21 MW	2	Aqua

8 other fires near Bahia (BR)

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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