Fire near Bahia (BR)

11.09°S, 44.06°W · first detected on 8 October at 01:54

What the satellites measured

This fire was tracked from 8 October at 01:54 to 15 October at 18:50, that is 8 days, through 1,662 satellite detections. The detected extent reaches 19,063 ha.

Detected extent: 19,063 ha
Cumulative power: 61,188 MW
Peak power, one pixel: 1,229 MW
VIIRS and MODIS detections: 1,662
Estimated emissions: 82.2 kt of carbon; Carbon burnt in the 0.1 degree cells (about 10 km) around the fire, from 7 October 2026 to 15 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 10 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
15 October at 18:50	51 MW	7	N21
15 October at 18:05	99 MW	4	N20
15 October at 17:46	22 MW	1	N
15 October at 06:17	3 MW	1	N21
15 October at 01:33	43 MW	4	Terra
14 October at 21:04	846 MW	8	Aqua
14 October at 19:09	222 MW	11	N21
14 October at 18:26	383 MW	5	N20
14 October at 18:05	1,069 MW	28	N
14 October at 13:19	185 MW	9	Terra
14 October at 08:52	13 MW	1	Aqua
14 October at 07:12	48 MW	21	N
14 October at 06:34	153 MW	43	N21
14 October at 05:49	181 MW	27	N20
14 October at 05:30	161 MW	17	N
13 October at 20:26	104 MW	2	Aqua
13 October at 18:43	1,079 MW	35	N20
13 October at 18:24	2,257 MW	25	N
13 October at 17:48	886 MW	30	N21
13 October at 01:54	134 MW	8	Terra
12 October at 19:02	317 MW	22	N20
12 October at 18:05	738 MW	28	N21
12 October at 13:40	28 MW	1	Terra
12 October at 06:27	70 MW	31	N20
12 October at 06:08	86 MW	27	N
12 October at 05:32	32 MW	11	N21
11 October at 19:22	164 MW	9	N20
11 October at 19:02	642 MW	41	N
11 October at 18:26	814 MW	27	N21
11 October at 17:39	845 MW	24	N20
11 October at 13:02	347 MW	5	Terra
11 October at 08:37	170 MW	5	Aqua
11 October at 06:46	345 MW	36	N20
11 October at 06:27	339 MW	45	N
11 October at 05:49	194 MW	35	N21
11 October at 02:13	41 MW	1	Terra
10 October at 20:11	3,291 MW	15	Aqua
10 October at 19:20	1,768 MW	74	N
10 October at 18:43	2,307 MW	52	N21
10 October at 17:58	4,232 MW	66	N20
10 October at 14:00	61 MW	1	Terra
10 October at 07:06	44 MW	17	N20
10 October at 06:46	88 MW	29	N
10 October at 06:10	131 MW	45	N21
10 October at 05:25	150 MW	30	N20
10 October at 01:35	860 MW	8	Terra
9 October at 21:13	3,868 MW	19	Aqua
9 October at 19:02	3,407 MW	138	N21
9 October at 18:18	5,858 MW	86	N20
9 October at 18:01	8,740 MW	107	N
9 October at 13:21	119 MW	4	Terra
9 October at 07:04	55 MW	28	N
9 October at 06:27	135 MW	38	N21
9 October at 05:45	75 MW	39	N20
8 October at 20:34	4,675 MW	30	Aqua
8 October at 19:22	2,189 MW	63	N21
8 October at 18:37	2,628 MW	66	N20
8 October at 18:18	2,170 MW	43	N
8 October at 17:41	1,173 MW	18	N21
8 October at 06:46	6 MW	2	N21
8 October at 06:02	16 MW	3	N20
8 October at 05:45	13 MW	4	N
8 October at 01:54	20 MW	2	Terra
6 October at 20:58	37 MW	1	Aqua
6 October at 19:15	9 MW	2	N20

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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