[Propagation+Space Weather] Today's Space Weather Forecast Discussion on 2018 Jun 10 1230 UTC

[nw7us@sunspotwatch.com]

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Here is the current forecast discussion on space weather and geophysical activity, issued 2018 Jun 10 1230 UTC.

Solar Activity

24 hr Summary: A spotless solar disk kept solar activity at very low levels. No Earth-directed CMEs were observed in available coronagraph imagery.

Forecast: Solar activity is expected to be at very low levels over the next three days (10-12 Jun).

Energetic Particles

24 hr Summary: The greater than 2 MeV electron flux reached high levels this period with a peak flux of 1,940 pfu observed at 09/2115 UTC. The greater than 10 MeV proton flux was steady at background levels throughout the period.

Forecast: The greater than 2 MeV electron flux is expected to reach high levels on day one (10 Jun), then decrease to moderate levels on days two and three (11-12 Jun). The greater than 10 MeV proton flux is expected to persist at background levels throughout the forecast period.

Solar Wind

24 hr Summary: Solar wind parameters, as measured by the DSCOVR spacecraft, reflected nominal conditions. Solar wind speeds were between 320-360 km/s. Total field was below 5 nT. Phi was variable.

Forecast: The solar wind environment is expected to be at or near background levels on days one and two (10-11 Jun). Weak enhancements from a negative polarity coronal hole are likely on day three (12 Jun).

Geospace

24 hr Summary: The geomagnetic field was quiet.

Forecast: The geomagnetic field is expected to remain quiet on days one and two (10-11 Jun). Weak influence from a coronal hole will likely cause periods of unsettled activity on day three (12 Jun).

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