[Propagation+Space Weather] Today's Space Weather Forecast Discussion on 2018 Apr 04 1230 UTC

[nw7us@sunspotwatch.com]

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Here is the current forecast discussion on space weather and geophysical activity, issued 2018 Apr 04 1230 UTC.

Solar Activity

24 hr Summary: Solar activity was very low with no spotted regions on the visible disk. No Earth-directed CMEs were observed in available satellite imagery.

Forecast: Solar activity is expected to be very low for the next three days (04-06 Apr).

Energetic Particles

24 hr Summary: The greater than 2 MeV electron flux reached high levels and the greater than 10 MeV proton flux continued at background values.

Forecast: The greater than 2 MeV electron flux is expected to continue reaching high levels over the next three days (04-06 Apr). The greater than 10 MeV proton flux is expected to remain at background levels throughout the forecast period.

Solar Wind

24 hr Summary: The solar wind environment was at nominal levels. Solar wind speed decreased over the period from near 400 km/s to around 335 km/s. Total field averaged near 5 nT and Bz was variable. Phi angle was positive. Forecast: The solar wind environment is expected to be at mostly nominal levels over the next days (04 Apr), then become enhanced on days two and three (05-06 Apr) due to influences from a positive polarity CH HSS.

Geospace

24 hr Summary: The geomagnetic field was quiet.

Forecast: Geomagnetic field conditions are expected to be mostly quiet on day one (04 Apr) under an ambient solar wind environment. Unsettled conditions are likely on days two and three (05-06 Apr) due to effects from a polar-connected, positive polarity CH HSS.

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