[Propagation+Space Weather] Today's Space Weather Forecast Discussion on 2018 May 01 1230 UTC

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Here is the current forecast discussion on space weather and geophysical activity, issued 2018 May 01 1230 UTC.

Solar Activity

24 hr Summary: Solar activity was very low and no sunspots were present on the visible disk. No CMEs were observed in available coronagraph imagery.

Forecast: Solar activity is expected to be very low all three days (01-03 May).

Energetic Particle

24 hr Summary: The greater than 2 MeV electron flux was at normal to moderate 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 at normal to moderate levels all three days (01-03 May) and the greater than 10 MeV proton flux is expected to remain at background levels.

Solar Wind

24 hr Summary: Solar wind parameters were indicative of weak influences of the flanking edge of the north polar, positive CH HSS. Total field strength was variable and ranged primarily from 3 to 8 nT and the Bz component underwent mainly weak deviations. Solar wind speed slightly decreased from near 460 to 420 km/s. The phi angle was predominantly positive.

Forecast: Solar wind speed is expected to return to the more ambient, background-like conditions of a slow regime on day one (01 May), although minor disturbances in the IMF are likely due to the proximity of the south flank of the north polar CH HSS. Those influences are likely to become less frequent on days two and three (02-03 May) as the slow regime continues.

Geospace

24 hr Summary: The geomagnetic field was quiet.

Forecast: The geomagnetic field is expected to be primarily quiet, with a chance for isolated unsettled conditions all three days (01-03 May) due to effects associated with minor disturbances in the solar wind field.

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