AuroracastUKSpace weather data
Forecast
Live Hp30 measurements, the 3-day Hp30 outlook, solar wind conditions, and X-ray flux, everything you need to plan your aurora hunt.
Incoming
Coming our way
The strongest flare in the last 24 hours, and every CME in the last three days with whether it is heading for Earth.
Solar flares
Strongest flare in the last 24 hours: M1.4 at Fri, 16 Oct, 16:42 BST. It came from sunspot region 4551, near the middle of the Sun, the part that faces Earth.
A flare this size can throw out a CME. If NASA finds one heading for Earth it will show below, usually within a few hours, and the app will send an alert.
CMEs in the last three days
None of the 9 is heading for Earth in NASA's model. Show them
Left the Sun Fri, 16 Oct, 13:38 BST, 247 km/s
Not heading for Earth in NASA's model.
Left the Sun Fri, 16 Oct, 12:48 BST, 475 km/s
Not heading for Earth in NASA's model.
Left the Sun Fri, 16 Oct, 09:12 BST, 334 km/s
Not heading for Earth in NASA's model.
Left the Sun Fri, 16 Oct, 08:12 BST, 490 km/s
Not heading for Earth in NASA's model.
Left the Sun Fri, 16 Oct, 07:09 BST, 324 km/s
Not heading for Earth in NASA's model.
Left the Sun Thu, 15 Oct, 21:24 BST, 428 km/s
Not heading for Earth in NASA's model.
Left the Sun Thu, 15 Oct, 00:12 BST, 360 km/s
Not heading for Earth in NASA's model.
Left the Sun Wed, 14 Oct, 23:09 BST, 339 km/s
Not heading for Earth in NASA's model.
Left the Sun Wed, 14 Oct, 14:36 BST, 236 km/s
Not heading for Earth in NASA's model.
48-hour history
Hp30 History
Measured Hp30 geomagnetic index over the last 48 hours (GMT/BST) · 30-minute cadence
3-day outlook
Hp30 Forecast
GFZ Potsdam 3-day Hp30 forecast · 30-min cadence · shaded band shows ensemble spread
Last 3 hours
Solar Wind
Real-time Bz component and solar wind speed from Solar1 / ACE · Bz < 0 (southward) favours aurora activity
Last 24 hours
Solar X-ray Flux
GOES satellite X-ray flux · log scale · flare classes A → X