Observed thermal detection
Thermal detection near Montana
No measurable activity for an extended period of satellite observation. No satellite detection does not mean an area is safe. Cloud, sensor timing and heat below a sensor’s threshold can hide activity.
This is satellite-based information — always follow instructions from local authorities. 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 m—
Measured positions. Drawn at true footprint scale, brightest layer.
- Meteosat (EUMETSAT)≈2 km—
Measures how much energy is radiated, 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- Grey is what a later pass has superseded.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.
- Nothing has been measured here in the latest observed period, so the last known detections are drawn in history grey — . Grey means was, not is, and it never means the activity is over.
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.
- 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.
Official
Official source record
Official information is shown separately and takes precedence over satellite interpretation.
No official source is linked to this event yet.
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 from 20 Sept 2026, 01:02 to the most recent observation on 21 Sept 2026, 01:26. Satellite readings in the 72 hours shown: 22, from VIIRS (NASA) and Meteosat (EUMETSAT). Highest single reading in that window: 25.1 MW, Meteosat (EUMETSAT) — 20 Sept 2026, 12:00, .
This is a record of what satellites have measured so far, not a statement that the activity has ended. Only an official source can say that, and heat can return to ground that has gone quiet.
Observations from the 72 hours up to 21 Sept 2026, 01:26 UTC.
- 21 Sept 2026, 01:26VIIRS1 detections · average 1.3 MW · peak 1.3 MWNight
- 21 Sept 2026, 00:41VIIRS3 detections · average 0.7 MW · peak 1.1 MWNight
- 21 Sept 2026, 00:22VIIRS3 detections · average 0.9 MW · peak 1.2 MWNight
- 20 Sept 2026, 23:46VIIRS1 detections · average 1.2 MW · peak 1.2 MWNight
- 20 Sept 2026, 21:20Meteosat1 detections · average 5 MW · peak 5 MWDay
- 20 Sept 2026, 21:00Meteosat1 detections · average 6.8 MW · peak 6.8 MWDay
- 20 Sept 2026, 19:50Meteosat1 detections · average 5.2 MW · peak 5.2 MWDay
- 20 Sept 2026, 19:20Meteosat1 detections · average 6.2 MW · peak 6.2 MWDay
- 20 Sept 2026, 19:00Meteosat1 detections · average 5.9 MW · peak 5.9 MWDay
- 20 Sept 2026, 18:20Meteosat1 detections · average 4.8 MW · peak 4.8 MWDay
- 20 Sept 2026, 18:00Meteosat1 detections · average 4.9 MW · peak 4.9 MWDay
- 20 Sept 2026, 17:00Meteosat1 detections · average 5.1 MW · peak 5.1 MWDay
- 20 Sept 2026, 16:30Meteosat1 detections · average 4.9 MW · peak 4.9 MWDay
- 20 Sept 2026, 14:10Meteosat1 detections · average 20.2 MW · peak 20.2 MWDay
- 20 Sept 2026, 12:25VIIRS2 detections · average 11.4 MW · peak 12.7 MWDay
- 20 Sept 2026, 12:06VIIRS3 detections · average 13 MW · peak 18 MWDay
Nearby
Other detections nearby
Other satellite-observed events within 100 km, nearest first — up to six shown.
This reading did not come back. What else is burning within 100 km is unknown — not an absence.