Space Weather

3-day Solar-Geophysical Forecast issued May 27 22:00 UTC

Solar Activity Forecast: Solar activity is expected to be low with a chance for C-class events, and a slight chance for an M-class event, as regions on the disk continue to evolve.

Geophysical Activity Forecast: The geomagnetic field is expected to be predominately unsettled with occasional active periods, including isolated minor storm conditions at high-latitudes for day one (28 May). This is expected due to effects from the recurrent coronal hole high speed stream (CH HSS). In addition there are possible effects from the disappearing filament observed on 25 May. Quiet to unsettled conditions, with isolated active levels, are expected for days two and three (29-30 May) with continued CH HSS effects.  See: Today's Space Weather

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The plots on this page show the current extent and position of the auroral oval at each pole, extrapolated from measurements taken during the most recent polar pass of the NOAA POES satellite. "Center time" is the calculated time halfway through the satellite's pass over the pole.Auroral Activity Extrapolated from NOAA POES