This plot shows the mean photospheric excess magnetic energy density (MEANPOT), from SHARP – Space-Weather HMI Active Region Patches. X-flares are possible for MEANPOT > 10000. Credits: SHARP data viewer.
This shows the latest forecast of conditions in the solar wind, as predicted by the WSA-Enlil model. Credits: SWPC/NOAA.
Dst and Kp Indices
The Dst index is an index of geomagnetic activity. A geomagnetic storm is defined by changes in Dst. The size of a geomagnetic storm is classified as moderate (-50 nT > minimum of Dst < -100 nT), intense (-100 nT > minimum Dst < -250 nT) or super-storm (minimum of Dst > -250 nT). (IRF-Lund)
Short term (1hr) forecast. When Kp > 7 Aurora might be seen at lower latitudes in Sweden. Credits: Geophysical Institute Alaska.