[Propagation+Space Weather] Today's Space Weather Forecast Discussion on 2019 Jun 18 1230 UTC

[nw7us@sunspotwatch.com]

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Here is the current forecast discussion on space weather and geophysical activity, issued 2019 Jun 18 1230 UTC.

Solar Activity

24 hr Summary: Solar activity remained very low and the visible disk was spotless. No Earth-directed CMEs were observed in available coronagraph imagery.

Forecast: Solar activity is expected to remain very low 18-20 Jun.

Energetic Particle

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

Forecast: The greater than 2 MeV electron flux is expected to be at normal to moderate levels 18-20 June in response to minor CH HSS effects. The greater than 10 MeV proton flux is expected to continue at background levels.

Solar Wind

24 hr Summary: Solar wind parameters were indicative of a slow regime. Solar wind speed was between 302-338 km/s and total IMF strength ranged primarily from 2 to 6 nT. The Bz component underwent weak deviations. The phi angle was predominantly positive.

Forecast: The solar wind environment is anticipated to experience a mildly enhanced and disturbed state late on 18 Jun due to tenuous, isolated negative polarity CH HSS influences. Any slight enhancements are likely to continue into 19 and 20 Jun, but in a weakening state due to less favorable geoeffective components.

Geospace

24 hr Summary: The geomagnetic field was quiet.

Forecast: Primarily quiet to unsettled conditions are expected on 18 Jun, with an isolated active period likely later, due to minor CH HSS effects. 19-20 Jun are expected to experience mainly quiet to unsettled conditions as any CH HSS influences weaken.

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Live data: SunSpotWatch.com

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