Fire near Bahia (BR)

11.69°S, 43.59°W · first detected on 23 September at 01:58

What the satellites measured

This fire was tracked from 23 September at 01:58 to 17 October at 19:07, that is 25 days, through 7,747 satellite detections. The detected extent reaches 67,947 ha.

Detected extent: 67,947 ha
Cumulative power: 246,221 MW
Peak power, one pixel: 2,681 MW
VIIRS and MODIS detections: 7,747
Estimated emissions: 141.8 kt of carbon; Carbon burnt in the 0.1 degree cells (about 10 km) around the fire, from 5 October 2026 to 17 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).

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 27 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
17 October at 19:07	22 MW	2	N20
17 October at 18:50	35 MW	4	N
17 October at 06:14	7 MW	2	N
16 October at 20:43	119 MW	5	Aqua
16 October at 19:28	176 MW	9	N20
16 October at 19:07	204 MW	12	N
16 October at 18:33	187 MW	10	N21
16 October at 17:48	84 MW	7	N20
15 October at 18:50	776 MW	36	N21
15 October at 18:05	3,129 MW	61	N20
15 October at 17:46	422 MW	11	N
15 October at 06:17	11 MW	3	N21
15 October at 01:33	157 MW	13	Terra
14 October at 21:04	267 MW	7	Aqua
14 October at 19:07	348 MW	23	N21
14 October at 18:26	100 MW	6	N20
14 October at 18:05	376 MW	13	N
14 October at 13:19	118 MW	8	Terra
14 October at 08:52	30 MW	2	Aqua
14 October at 07:12	44 MW	18	N
14 October at 06:34	190 MW	38	N21
14 October at 05:49	131 MW	24	N20
14 October at 05:32	49 MW	6	N
13 October at 20:26	144 MW	3	Aqua
13 October at 18:43	761 MW	27	N20
13 October at 18:24	1,513 MW	60	N
13 October at 17:48	2,033 MW	63	N21
13 October at 08:14	55 MW	4	Aqua
13 October at 01:54	434 MW	13	Terra
12 October at 19:02	1,620 MW	73	N20
12 October at 18:05	2,125 MW	70	N21
12 October at 13:40	34 MW	1	Terra
12 October at 06:27	62 MW	34	N20
12 October at 06:08	64 MW	28	N
12 October at 05:32	55 MW	14	N21
12 October at 01:14	298 MW	12	Terra
11 October at 19:22	838 MW	56	N20
11 October at 19:02	973 MW	40	N
11 October at 18:26	903 MW	41	N21
11 October at 17:39	1,978 MW	84	N20
11 October at 13:02	25 MW	1	Terra
11 October at 08:37	51 MW	5	Aqua
11 October at 06:46	122 MW	39	N20
11 October at 06:27	163 MW	68	N
11 October at 05:49	214 MW	62	N21
11 October at 02:13	98 MW	2	Terra
10 October at 20:11	615 MW	8	Aqua
10 October at 19:20	4,517 MW	224	N
10 October at 18:43	5,468 MW	117	N21
10 October at 18:01	4,794 MW	193	N20
10 October at 14:00	33 MW	1	Terra
10 October at 07:06	51 MW	20	N20
10 October at 06:46	139 MW	67	N
10 October at 06:10	251 MW	96	N21
10 October at 05:25	136 MW	33	N20
10 October at 01:35	336 MW	29	Terra
9 October at 21:13	4,810 MW	43	Aqua
9 October at 19:02	5,898 MW	203	N21
9 October at 18:18	4,468 MW	117	N20
9 October at 17:58	7,398 MW	137	N
9 October at 13:21	347 MW	11	Terra
9 October at 07:04	167 MW	47	N
9 October at 06:27	340 MW	82	N21
9 October at 05:45	189 MW	84	N20
9 October at 00:57	90 MW	2	Terra
8 October at 20:34	12,657 MW	72	Aqua
8 October at 19:22	6,458 MW	128	N21
8 October at 18:37	5,085 MW	117	N20
8 October at 18:18	5,778 MW	147	N
8 October at 17:39	6,447 MW	134	N21
8 October at 08:22	59 MW	3	Aqua
8 October at 06:46	155 MW	50	N21
8 October at 06:02	177 MW	42	N20
8 October at 05:45	181 MW	43	N
8 October at 01:54	225 MW	12	Terra
7 October at 18:56	2,507 MW	118	N20
7 October at 18:35	4,097 MW	104	N
7 October at 18:01	3,562 MW	96	N21
7 October at 13:42	241 MW	6	Terra
7 October at 07:06	80 MW	12	N21
7 October at 06:21	132 MW	47	N20
7 October at 06:02	116 MW	35	N
7 October at 05:25	169 MW	24	N21
7 October at 01:16	219 MW	10	Terra
6 October at 20:58	1,870 MW	35	Aqua
6 October at 19:13	2,423 MW	126	N20
6 October at 18:56	3,950 MW	109	N
6 October at 18:18	2,959 MW	65	N21
6 October at 13:02	54 MW	2	Terra
6 October at 08:44	9 MW	1	Aqua
6 October at 06:40	111 MW	47	N20
6 October at 06:20	131 MW	56	N
6 October at 05:45	135 MW	31	N21
6 October at 02:16	511 MW	6	Terra
5 October at 20:19	1,237 MW	8	Aqua
5 October at 19:13	726 MW	61	N
5 October at 18:37	1,857 MW	72	N21
5 October at 17:54	1,348 MW	87	N20
5 October at 14:02	107 MW	1	Terra
5 October at 06:59	14 MW	5	N20
5 October at 06:40	46 MW	8	N
5 October at 06:04	38 MW	11	N21
5 October at 01:37	104 MW	14	Terra
4 October at 21:19	473 MW	4	Aqua
4 October at 19:34	48 MW	2	N
4 October at 18:56	739 MW	20	N21
4 October at 18:11	714 MW	29	N20
4 October at 17:52	197 MW	11	N
4 October at 13:23	81 MW	3	Terra
4 October at 06:57	7 MW	6	N
4 October at 06:21	2 MW	1	N21
4 October at 05:38	28 MW	16	N20
3 October at 20:38	525 MW	3	Aqua
3 October at 19:15	13 MW	1	N21
3 October at 18:33	366 MW	23	N20
3 October at 18:11	395 MW	13	N
3 October at 17:33	41 MW	2	N21
3 October at 07:18	9 MW	4	N
3 October at 06:40	38 MW	7	N21
3 October at 05:55	48 MW	10	N20
3 October at 01:56	760 MW	15	Terra
2 October at 20:02	2,082 MW	15	Aqua
2 October at 18:50	4,316 MW	178	N20
2 October at 18:30	4,724 MW	204	N
2 October at 17:54	5,060 MW	251	N21
2 October at 13:45	2,038 MW	31	Terra
2 October at 07:50	193 MW	4	Aqua
2 October at 06:59	587 MW	93	N21
2 October at 06:17	1,433 MW	218	N20
2 October at 05:55	1,669 MW	161	N
2 October at 05:19	2,699 MW	124	N21
2 October at 01:16	5,257 MW	59	Terra
1 October at 21:02	14,434 MW	35	Aqua
1 October at 19:07	4,181 MW	203	N20
1 October at 18:50	5,760 MW	135	N
1 October at 18:11	8,725 MW	106	N21
1 October at 13:04	128 MW	2	Terra
1 October at 06:34	47 MW	23	N20
1 October at 06:14	47 MW	25	N
1 October at 05:38	30 MW	13	N21
1 October at 02:18	105 MW	3	Terra
30 September at 20:24	6,328 MW	36	Aqua
30 September at 19:28	5,640 MW	92	N20
30 September at 19:07	5,977 MW	92	N
30 September at 18:33	3,039 MW	58	N21
30 September at 17:46	1,818 MW	72	N20
30 September at 06:53	36 MW	16	N20
30 September at 06:34	61 MW	26	N
30 September at 05:55	89 MW	26	N21
30 September at 01:37	60 MW	3	Terra
29 September at 21:23	426 MW	2	Aqua
29 September at 19:26	2,807 MW	77	N
29 September at 18:50	2,724 MW	46	N21
29 September at 18:05	1,851 MW	41	N20
29 September at 17:46	1,859 MW	45	N
29 September at 06:51	10 MW	6	N
29 September at 06:17	28 MW	23	N21
29 September at 05:32	6 MW	4	N20
29 September at 00:59	519 MW	7	Terra
28 September at 20:47	4,850 MW	28	Aqua
28 September at 19:07	1,288 MW	34	N21
28 September at 18:24	554 MW	21	N20
28 September at 18:05	602 MW	27	N
28 September at 06:34	2 MW	2	N21
28 September at 05:49	6 MW	2	N20
28 September at 01:56	102 MW	6	Terra
27 September at 20:09	1,282 MW	6	Aqua
27 September at 18:43	747 MW	16	N20
27 September at 18:24	1,132 MW	16	N
27 September at 17:48	683 MW	14	N21
25 September at 06:27	2 MW	1	N
25 September at 05:49	16 MW	11	N21
25 September at 01:39	63 MW	7	Terra
24 September at 18:01	313 MW	11	N20
24 September at 13:28	184 MW	6	Terra
24 September at 07:06	172 MW	16	N20
24 September at 06:46	166 MW	12	N
24 September at 06:10	236 MW	30	N21
24 September at 00:59	133 MW	3	Terra
23 September at 20:53	29 MW	1	Aqua
23 September at 19:02	2,126 MW	33	N21
23 September at 18:18	145 MW	7	N20
23 September at 17:58	2,327 MW	72	N
23 September at 08:40	7 MW	1	Aqua
23 September at 07:04	15 MW	12	N
23 September at 06:27	49 MW	23	N21
23 September at 05:45	30 MW	19	N20
23 September at 01:58	126 MW	6	Terra
22 September at 20:15	7,611 MW	11	Aqua
22 September at 19:22	2,896 MW	50	N21
22 September at 18:37	3,131 MW	48	N20
22 September at 18:18	2,946 MW	46	N
22 September at 17:39	611 MW	34	N21
22 September at 06:46	13 MW	7	N21
22 September at 06:02	25 MW	13	N20
22 September at 05:45	13 MW	8	N
22 September at 01:20	226 MW	5	Terra
21 September at 21:15	1,029 MW	8	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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