Fire near Louisiane (US)
30.50°N, 91.50°W · first detected on 7 October at 21:34
What the satellites measured
This fire was tracked from 7 October at 21:34 to 22 October at 23:04, that is 15 days, through 330 satellite detections. The detected extent reaches 4,484 ha.
- Detected extent
- 4,484 ha
- Cumulative power
- 5,494 MW
- Peak power, one pixel
- 95 MW
- VIIRS and MODIS detections
- 330
- Estimated emissions
- 5.1 kt of carbon
- Carbon burnt in the 0.1 degree cells (about 10 km) around the fire, from 7 October 2026 to 22 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 18 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 | 25 MW | 3 | N21 |
| 22 October at 21:52 | 33 MW | 1 | G19FRP |
| 22 October at 21:50 | 42 MW | 1 | G19 |
| 22 October at 21:42 | 33 MW | 1 | G19FRP |
| 22 October at 21:40 | 42 MW | 1 | G19 |
| 22 October at 21:32 | 31 MW | 1 | G19FRP |
| 22 October at 21:30 | 40 MW | 1 | G19 |
| 22 October at 21:22 | 56 MW | 1 | G18FRP |
| 22 October at 21:22 | 131 MW | 2 | G19FRP |
| 22 October at 21:20 | 102 MW | 1 | G19 |
| 22 October at 21:20 | 84 MW | 1 | G18 |
| 22 October at 21:12 | 66 MW | 1 | G19FRP |
| 22 October at 21:10 | 79 MW | 1 | G19 |
| 22 October at 21:09 | 461 MW | 22 | N20 |
| 22 October at 21:02 | 412 MW | 3 | G19FRP |
| 22 October at 21:02 | 426 MW | 3 | G18FRP |
| 22 October at 21:00 | 555 MW | 3 | G19 |
| 22 October at 21:00 | 453 MW | 2 | G18 |
| 22 October at 20:52 | 76 MW | 1 | G18FRP |
| 22 October at 20:52 | 130 MW | 2 | G19FRP |
| 22 October at 20:50 | 108 MW | 1 | G18 |
| 22 October at 20:50 | 114 MW | 1 | G19 |
| 22 October at 20:49 | 120 MW | 11 | N |
| 22 October at 20:42 | 207 MW | 1 | G18FRP |
| 22 October at 20:42 | 157 MW | 1 | G19FRP |
| 22 October at 20:40 | 264 MW | 1 | G18 |
| 22 October at 20:40 | 548 MW | 4 | G19 |
| 22 October at 20:32 | 126 MW | 1 | G19FRP |
| 22 October at 20:32 | 166 MW | 1 | G18FRP |
| 22 October at 20:30 | 210 MW | 1 | G18 |
| 22 October at 20:30 | 242 MW | 2 | G19 |
| 22 October at 20:22 | 56 MW | 1 | G18FRP |
| 22 October at 20:20 | 78 MW | 1 | G18 |
| 22 October at 20:13 | 191 MW | 4 | N21 |
| 22 October at 20:12 | 407 MW | 3 | G19FRP |
| 22 October at 20:12 | 204 MW | 1 | G18FRP |
| 22 October at 20:10 | 259 MW | 1 | G18 |
| 22 October at 20:10 | 640 MW | 4 | G19 |
| 22 October at 19:22 | 37 MW | 1 | G19FRP |
| 22 October at 19:20 | 47 MW | 1 | G19 |
| 22 October at 19:00 | 40 MW | 1 | G19 |
| 22 October at 00:52 | 42 MW | 1 | G18FRP |
| 22 October at 00:52 | 25 MW | 1 | G19FRP |
| 22 October at 00:50 | 53 MW | 1 | G18 |
| 22 October at 00:50 | 31 MW | 1 | G19 |
| 22 October at 00:02 | 186 MW | 3 | G19FRP |
| 22 October at 00:02 | 112 MW | 1 | G18FRP |
| 22 October at 00:00 | 150 MW | 1 | G18 |
| 22 October at 00:00 | 119 MW | 1 | G19 |
| 21 October at 23:52 | 80 MW | 2 | G19FRP |
| 21 October at 23:52 | 101 MW | 1 | G18FRP |
| 21 October at 23:50 | 69 MW | 1 | G19 |
| 21 October at 23:50 | 136 MW | 1 | G18 |
| 21 October at 23:42 | 107 MW | 3 | G19FRP |
| 21 October at 23:42 | 103 MW | 1 | G18FRP |
| 21 October at 23:40 | 138 MW | 1 | G18 |
| 21 October at 23:22 | 74 MW | 1 | G18FRP |
| 21 October at 23:22 | 48 MW | 1 | G19FRP |
| 21 October at 23:20 | 100 MW | 1 | G18 |
| 21 October at 23:20 | 65 MW | 1 | G19 |
| 21 October at 22:22 | 91 MW | 2 | G19FRP |
| 21 October at 22:20 | 95 MW | 1 | G18 |
| 21 October at 22:20 | 82 MW | 1 | G19 |
| 21 October at 22:12 | 97 MW | 3 | N21 |
| 21 October at 22:10 | 62 MW | 1 | G18 |
| 21 October at 21:50 | 45 MW | 1 | G19 |
| 21 October at 21:42 | 235 MW | 2 | G18FRP |
| 21 October at 21:42 | 137 MW | 2 | G19FRP |
| 21 October at 21:40 | 117 MW | 1 | G19 |
| 21 October at 21:40 | 204 MW | 1 | G18 |
| 21 October at 21:28 | 74 MW | 8 | N20 |
| 21 October at 21:20 | 68 MW | 1 | G19 |
| 21 October at 20:31 | 5 MW | 2 | N21 |
| 21 October at 20:12 | 57 MW | 1 | G19FRP |
| 21 October at 20:10 | 73 MW | 1 | G19 |
| 21 October at 20:10 | 101 MW | 1 | G18 |
| 20 October at 23:40 | 45 MW | 1 | G19 |
| 20 October at 21:30 | 56 MW | 1 | G19 |
| 20 October at 21:30 | 61 MW | 1 | G18 |
| 20 October at 21:27 | 276 MW | 6 | N |
| 20 October at 21:20 | 127 MW | 1 | G18 |
| 20 October at 21:20 | 113 MW | 1 | G19 |
| 20 October at 20:49 | 19 MW | 3 | N21 |
| 20 October at 19:40 | 42 MW | 1 | G19 |
| 20 October at 18:20 | 36 MW | 1 | G19 |
| 20 October at 18:20 | 65 MW | 1 | G18 |
| 19 October at 22:06 | 377 MW | 14 | N20 |
| 19 October at 21:46 | 29 MW | 6 | N |
| 19 October at 21:09 | 276 MW | 7 | N21 |
| 19 October at 20:25 | 23 MW | 4 | N20 |
| 18 October at 23:48 | 55 MW | 2 | Aqua |
| 18 October at 22:04 | 33 MW | 4 | N |
| 18 October at 20:43 | 56 MW | 8 | N20 |
| 18 October at 20:24 | 11 MW | 2 | N |
| 16 October at 22:06 | 9 MW | 1 | N21 |
| 13 October at 22:17 | 51 MW | 4 | N20 |
| 13 October at 21:57 | 64 MW | 8 | N |
| 13 October at 21:21 | 17 MW | 2 | N21 |
| 12 October at 21:40 | 18 MW | 1 | N21 |
| 12 October at 20:56 | 12 MW | 1 | N20 |
| 11 October at 20:19 | 35 MW | 2 | N21 |
| 8 October at 22:12 | 11 MW | 2 | N20 |
| 8 October at 21:51 | 6 MW | 2 | N |
| 8 October at 20:31 | 223 MW | 4 | N20 |
| 7 October at 22:11 | 39 MW | 8 | N |
| 7 October at 21:34 | 14 MW | 2 | N21 |
8 other fires near Louisiane (US)
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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