Here is the current forecast discussion on space weather and...

Here is the current forecast discussion on space weather and geophysical activity, issued 2017 May 25 1230 UTC.

Solar Activity

24 hr Summary: Solar activity remained very low. Region 2659 (N12W24, Cro/beta) remained the only spotted region on the disk. No Earth-directed CMEs were observed during the summary period.

Forecast: Solar activity is expected to be very low, with a slight chance for C-class flares, throughout the forecast period (25-27 May).

Energetic Particles

24 hr Summary: The greater than 2 MeV electron flux reached high levels with a peak flux of 11,365 pfu. The greater than 10 MeV proton flux remained at background values.

Forecast: The greater than 2 MeV electron flux is expected to reach high to very high levels, on days one and two (25-26 May) of the forecast period in response to elevated wind speeds from CH HSS influence. By day three (27 May), the arrival of the 23 May CME is likely to cause a redistribution of particles, returning flux levels to near background conditions. The greater than 10 MeV proton flux is expected to continue at background levels.

Solar Wind

24 hr Summary: Solar wind parameters were indicative of background ambient conditions. Solar wind velocities gradually decreased from 475 km/s to 375 km/s. Total field (Bt) was steady near 4 nT, while the Bz component fluctuated slightly between +/-3 nT. The phi angle remained in a negative sector during the period.

Forecast: Solar wind parameters are expected to remain at ambient conditions on day one (25 May) as CH HSS influences continue to wane. Mid to late day on day two (26 May), solar wind parameters are expected to become enhanced and disturbed with the arrival of the 23 May CME. Conditions should remain disturbed for day three (27 May).

Geospace

24 hr Summary: The geomagnetic field was quiet.

Forecast: The geomagnetic field is expected to be at quiet conditions on day one (25 May). Unsettled to active conditions are expected, with a slight chance for G1-Minor storm conditions, by midday on day two (26 May), with the arrival of the 23 May CME. Unsettled to active conditions are expected to continue on day three (27 May) with CME conditions persisting.

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