AuroraWatchers

Tracking Northern Lights…

Alerts, monitoring and tips for catching the aurora — from the same team as Noorderlichtjagers.

Live from the catalog

CME summary

Which cloud to watch, the Kp those arrivals may drive, and density maps of storms still in transit.

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Watch this CME

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Kp prediction Kp from the HUXt solar-wind speed at Earth in 3-hour UT slots for the next 3 days (and recent hits). Solid bars use NASA WSA-ENLIL Kp90 when a matching CME run arrives; hatched bars are speed-only from HUXt streams and CMEs. Each slot carries the ambient Parker spiral, or a Lundquist CME flux rope while a cone is over Earth (cycle-25 Hale handedness and tilt, assumed; the most southward Bz in the slot). The wind speed includes the radial magnetic force of that field, capped so it cannot dominate the flow. Speed Kp is still (V−330)/80.

On the way to Earth

NASA’s latest WSA-ENLIL density map, next to our daily HUXt run of the current cones.

NASA density map DONKI

Full CME overview How the detector works noorderlichtjagers.nl