Observed thermal detection
Calor medido perto de IJmuiden, Gemeente Velsen
Lower activity in a like-for-like comparison. No satellite detection does not mean an area is safe. Cloud, sensor timing and heat below a sensor’s threshold can hide activity.
Satellite
Where the measurements are
Heat marks show satellite measurements. Orbit tracks are modelled; glow sizes and place-label positions are display context.
What each mark means
Footprint at this scaleVIIRS (NASA) 375 mMeteosat (EUMETSAT) about 1–3 km per cell · not drawn
- VIIRS (NASA)375 m
Measured positions. Drawn at true footprint scale, brightest layer.
- Meteosat (EUMETSAT)about 1–3 km per cell
Measures radiated power, which is what sizes the glow. Its individual pixel positions are not stored, so no Meteosat footprint is drawn — inferring one from the sharper layer would put a detection pixel on ground nobody measured.
- True geographic scale, corrected for latitude. Frame is about 48 km across.
- The glow means “an event, roughly here”. Its area follows the measured power and its radius is capped, because an uncapped one would assert a burnt extent nobody measured. The number carries the magnitude.
- Grey marks detections shown as history, including those on quiet or archived events. It does not establish that a later satellite pass measured no activity.
- Coastline, lakes and borders come from a generalised map with about 1,7 km between vertices, so treat every line as the shape of the geography and not as a surveyed boundary. It is drawn under the data and never over it.
- Place names sit at their own coordinates from an offline index of populated places. They say what is near the measurements — not that any named place is burning, and not how far the heat reaches.
- The dashed line is a modelled satellite ground track through the pass that produced the coloured detections — real published orbital parameters, measured pass time, modelled geometry. The swath is 3060 km wide, so where the satellite actually looked from inside it is unknown.
Satellite
Current facts
No satellite detection does not mean an area is safe. Cloud, sensor timing and heat below a sensor’s threshold can hide activity.
MTG · VIIRS · Official
Verification ladder
- ConfirmedObserved
Two independent satellite looks recorded the same heat; one power reading or one VIIRS detection alone does not establish this step. Sensores de confirmação: desconhecidos no registo público.
- QuantifiedObserved
The heat here has a number on it — radiated power, in megawatts — and the number is what lets one reading be compared with another from the same time of day, day by day. Between measurements it says nothing. Measured by: Meteosat (EUMETSAT), VIIRS (NASA).
- Linked to an official sourceNot yet observed
An official update has been matched to this event. Official information outranks everything above it. Unknown
Official
Official source record
Official information is shown separately and takes precedence over satellite interpretation.
Os dados oficiais estão atualmente integrados apenas para Portugal.
Não há dados oficiais integrados para este país.
Satellite
What the ground under this event looks like
Almost every heat reading here — 2095 of 2103 — falls on ground our register already lists: it has been warm on repeated days without ever running hot. That is what a fixed installation looks like from orbit. It is probably an installation rather than a wildfire, but we cannot tell the two apart from satellite data alone, so this page does not claim either. Measured 06/11/2026.
peak 10 MW · VIIRS · · 04/11/2026, 11:46 UTC
What each sensor measured
Meteosat looks every ten minutes; VIIRS passes a few times a day. The contrast is the point — between sharp passes there is no new sharp knowledge, only the ten-minute layer.
VIIRS · Meteosat
Observation history
Day and night observations stay labelled. REYKR does not compare unlike times of day.
Measurement record
Measured over 109 days, from 20/07/2026, 01:41 to the most recent observation on 06/11/2026, 15:40. Satellite readings in the 72 hours shown: 21, from VIIRS (NASA) and Meteosat (EUMETSAT). Highest power measured across the whole record: 34,8 MW, VIIRS (NASA) — 05/10/2026, 02:04, .
Observations from the 72 hours up to 06/11/2026, 15:40 UTC.
- 06/11/2026, 15:40Meteosat1 detections · average 7,5 MW · peak 7,5 MWDay
- 06/11/2026, 15:10Meteosat1 detections · average 6,5 MW · peak 6,5 MWDay
- 06/11/2026, 15:00Meteosat1 detections · average 6,7 MW · peak 6,7 MWDay
- 06/11/2026, 12:48VIIRS2 detections · average 4,5 MW · peak 5,9 MWDay
- 06/11/2026, 11:53VIIRS1 detections · average 7,6 MW · peak 7,6 MWDay
- 06/11/2026, 11:08VIIRS1 detections · average 3,6 MW · peak 3,6 MWDay
- 06/11/2026, 02:57VIIRS4 detections · average 2,9 MW · peak 4,5 MWNight
- 06/11/2026, 01:19VIIRS3 detections · average 3,6 MW · peak 5,4 MWNight
- 05/11/2026, 15:00Meteosat1 detections · average 5,9 MW · peak 5,9 MWDay
- 05/11/2026, 12:10VIIRS1 detections · average 7,1 MW · peak 7,1 MWDay
- 05/11/2026, 11:27VIIRS2 detections · average 3,5 MW · peak 3,8 MWDay
- 05/11/2026, 03:17VIIRS3 detections · average 1,6 MW · peak 2,2 MWNight
- 05/11/2026, 02:21VIIRS4 detections · average 1,2 MW · peak 2 MWNight
- 05/11/2026, 01:38VIIRS5 detections · average 1,3 MW · peak 1,7 MWNight
- 05/11/2026, 00:41VIIRS1 detections · average 2,5 MW · peak 2,5 MWNight
- 04/11/2026, 11:46VIIRS3 detections · average 6,6 MW · peak 10 MWDay
Nearby
Other detections nearby
Other satellite-observed events within 100 km, nearest first — up to six shown.
Noord-Holland
8,3 km away
Arquivado após 7 dias sem deteçõesView event facts →Noord-Holland
15 km away
Arquivado após 7 dias sem deteçõesView event facts →Noord-Holland
16 km away
Arquivado após 7 dias sem deteçõesView event facts →Zuid-Holland
21 km away
Arquivado após 7 dias sem deteçõesView event facts →Noord-Holland
23 km away
Arquivado após 7 dias sem deteçõesView event facts →Noord-Holland
24 km away
Arquivado após 7 dias sem deteçõesView event facts →
Questions about these readings
What has been observed near IJmuiden, Gemeente Velsen?
Lower activity in a like-for-like comparison. No satellite detection does not mean an area is safe. Cloud, sensor timing and heat below a sensor’s threshold can hide activity.
When was the last measurement near IJmuiden, Gemeente Velsen?
06/11/2026, 15:40 UTC
How current is the last measurement near IJmuiden, Gemeente Velsen?
No signals: safe?
No. No detection is not proof of safety: cloud, missed passes, sub-threshold heat or failed reads leave activity unknown.
Missing or misplaced?
Fora da cobertura ou sem observações utilizáveis: desconhecido. Limiar Meteosat cerca de 12 MW; VIIRS 375 m; Meteosat cerca de 1–3 km. Áreas aproximadas, não limites de incêndios.
Data age?
Meteosat: every 10 min; median publication lag about 17 min, no deadline. VIIRS: usually 1–3 h after a pass. ANEPC: at least 600 s (10 min) between polls; no publication guarantee. Age per reading.
Sources?
Official above satellite. ANEPC: Portugal only. Meteosat (EUMETSAT); VIIRS (NASA): NOAA-20, NOAA-21; Suomi-NPP until its retirement in November 2026.