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

Here is the current forecast discussion on space weather and geophysical activity, issued 2017 Apr 29 1230 UTC.

Solar Activity

24 hr Summary: Solar activity was at very low levels. Region 2654 (N11E45, Axx/alpha) exhibited minor decay while Regions 2651 (N12W67, Hsx/alpha) and 2653 (S09W26, Hsx/alpha) were stable throughout the period. No Earth-directed CMEs were observed in available coronagraph imagery.

Forecast: Solar activity is expected to remain at very low levels throughout the forecast period (29 Apr-01 May).

Energetic Particle

24 hr Summary: The greater than 2 MeV electron flux reached very high levels this period with a peak flux of 56,297 pfu observed at 28/1645 UTC. The greater than 10 MeV proton flux was steady at background levels.

Forecast: The greater than 2 MeV electron flux is expected to continue at high to very high levels on day one (29 Apr) with high levels likely on days two and three (30 Apr-01 May). The greater than 10 MeV proton flux is expected to continue at background levels throughout the forecast period.

Solar Wind

24 hr Summary: Solar wind parameters reflected a nominal solar wind environment. Solar wind speeds were steady between 375-400 km/s with a period of anomalous, non-physical values reported between 28/1725-1900 UTC. Total field strength values were between 5-7 nT and the southward component of the magnetic field ranged between +4/-6 nT. The phi angle was steady in a negative (toward) solar sector orientation.

Forecast: Solar wind parameters are expected to remain at nominal levels on day one through the majority of day two (29-30 Apr). By late on day two, a solar sector boundary crossing (SSBC) into a positive (away) sector is expected followed by the weak influence of a positive polarity CH HSS. Enhanced solar wind parameters are expected to persist into day three (01 May).

Geospace

24 hr Summary: The geomagnetic field was quiet throughout the period under a background solar wind environment.

Forecast: The geomagnetic field is expected to continue at quiet levels on day one (29 Apr). Isolated unsettled activity is likely on day two (30 Apr) due to a solar sector boundary crossing (negative to positive) and isolated active conditions are likely on day three (01 May) due to the weak influence of a positive polarity CH HSS.

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