Observed wildfire event
Wildfire near Italy
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.
Esta información se basa en datos satelitales — siga siempre las instrucciones de las autoridades locales. Read the method
Satellite
Where the measurements are
Drawn server-side from the public event read model. Every mark is a measurement: nothing here is interpolated, smoothed or inferred.
What each mark means
Footprint at this scaleVIIRS (NASA) 375 mMeteosat (EUMETSAT) ≈2 km · not drawn
- VIIRS (NASA)375 m33 hr ago
Measured positions. Drawn at true footprint scale, brightest layer.
- Meteosat (EUMETSAT)≈2 km24 min ago
Measures how much energy the fire radiates, 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 fire 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- Grey is what a later pass has superseded. Colour means the most recent sharp measurement, and it never fades with the clock — only newer knowledge demotes it.
- 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.
- 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
- SeenObserved
A satellite observed a thermal anomaly here. Repetition belongs at this step: seeing the same thing many times separates noise from signal, but it does not separate heat from bright ground. Observed by: Meteosat (EUMETSAT), VIIRS (NASA).
- ConfirmedObserved
The anomaly carries measured energy or a 375 m position — the calibrated Meteosat fire product, or a VIIRS detection. Persistence alone never lights this step, because sunlit dry ground is persistent by nature.
- Quantified by VIIRSObserved
VIIRS (NASA) passed overhead and measured radiated power at a 375 m footprint. Between passes it says nothing.
- Linked to an official sourceNot yet observed
An official update has been matched to this event. Official information outranks everything above it.
When each sensor looked
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.
- Meteosat1 detections · average 5,7 MW · peak 5,7 MWDay
- Meteosat1 detections · average 5,8 MW · peak 5,8 MWDay
- Meteosat1 detections · average 4,8 MW · peak 4,8 MWDay
- Meteosat1 detections · average 6,3 MW · peak 6,3 MWDay
- Meteosat1 detections · average 5,6 MW · peak 5,6 MWDay
- VIIRS1 detections · average 7,3 MW · peak 7,3 MWDay
- VIIRS2 detections · average 7,7 MW · peak 8,7 MWDay
- VIIRS1 detections · average 8,9 MW · peak 8,9 MWDay
- VIIRS1 detections · average 7,9 MW · peak 7,9 MWDay
- VIIRS2 detections · average 10,9 MW · peak 13,5 MWDay
- VIIRS2 detections · average 2,6 MW · peak 3,2 MWNight
- VIIRS6 detections · average 1,3 MW · peak 2,2 MWNight
- VIIRS1 detections · average 3,6 MW · peak 3,6 MWNight
- VIIRS3 detections · average 2,5 MW · peak 3 MWNight
- VIIRS4 detections · average 2,1 MW · peak 3,1 MWNight
- VIIRS1 detections · average 8,2 MW · peak 8,2 MWDay
Official
Official source record
Official information is shown separately and takes precedence over satellite interpretation.
No official source is linked to this event yet.