Latest SWPC 3-day Space Weather Forecast
Latest SWPC 3-day Space Weather Forecast: Geophysical Activity Forecast: The geomagnetic field is expected to begin the forecast period at mostly quiet levels until the arrival of the 20 Nov CME midday on day one (23 Nov) when conditions are expected to rise to active levels with a chance for minor storm periods. Conditions have a chance for reaching major storm levels early on day two (24 Nov) with the expected arrival of the 21 Nov CME. On day three (25 Nov) conditions are expected to return to unsettled to active levels due to CME combined with high speed stream effects.