[Propagation+Space Weather] Today's Space Weather Forecast Discussion on 2018 Apr 05 1230 UTC

[nw7us@sunspotwatch.com]

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Here is the current forecast discussion on space weather and geophysical activity, issued 2018 Apr 05 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 (05-07 Apr).

Energetic Particles

24 hr Summary: The greater than 2 MeV electron flux was at normal to moderate levels. The greater than 10 MeV proton flux continued at background values.

Forecast: The greater than 2 MeV electron flux is expected to remain at normal to moderate levels over the next three days (05-07 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 gradually increased over the period from near 320 to 370 km/s Total field was generally 5 nT or less and Bz was variable. Phi angle was positive. Forecast: The solar wind environment is expected to be become enhanced on days one and two (05-06 Apr) due to influences from a polar-connected, positive polarity CH HSS. CH HSS activity will subside by day three (07 Apr) with a return to nominal, background levels.

Geospace

24 hr Summary: The geomagnetic field was quiet to unsettled.

Forecast: Geomagnetic field conditions are expected to be at quiet to unsettled levels on days one and two (05-06 Apr) with the onset of a polar-connected, positive polarity CH HSS. Mostly quiet conditions are expected on day three (07 Apr) as CH HSS effects wane.

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