[Propagation+Space Weather] Today's Space Weather Forecast Discussion on 2018 Jun 17 1230 UTC

[nw7us@sunspotwatch.com]

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Here is the current forecast discussion on space weather and geophysical activity, issued 2018 Jun 17 1230 UTC.

Solar Activity. Solar activity remained at very low levels. Region 2713 (N06E07, Axx/alpha) continued its slow decay. No Earth-directed CMEs were observed over the past 24 hours.

.Energetic Particles. The greater than 2 MeV electron flux ranged from normal to moderate levels while the greater than 10 MeV proton flux remained at background levels.

.Geospace/Solar Wind. The geomagnetic field was at quiet levels. Solar wind parameters, as measured by the DSCOVR spacecraft, reflected a nominal solar wind regime. Total magnetic field strength was at or below 4 nT while the Bz component varied between +2 nT to -3 nT. Solar wind speeds varied around 300 km/s while the phi angle remained in a predominately negative orientation.

: 3-DAY FORECAST: [17 Jun-19 Jun]

.Solar Activity. Solar activity is expected to remain very low over the forecast period.

.Energetic Particle. The greater than 2 MeV electron flux is expected to remain at normal to moderate levels while background levels are expected for the greater than 10 MeV proton flux through the forecast period.

.Geospace/Solar Wind. The geomagnetic field is expected to continue at quiet levels on 17 Jun under a nominal solar wind environment. Unsettled levels are likely on 18-19 Jun due to a weak enhancement from a positive polarity CH HSS.

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