[Propagation+Space Weather] Today's Space Weather Forecast Discussion on 2018 Jul 26 1230 UTC

[nw7us@sunspotwatch.com]

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Here is the current forecast discussion on space weather and geophysical activity, issued 2018 Jul 26 1230 UTC.

Solar Activity

24 hr Summary: Solar activity remained very low. There are no numbered active regions present on the visible disk. No Earth-directed CMEs were observed in available satellite imagery.

Forecast: Solar activity is expected to remain very low all three days.

Energetic Particle

24 hr Summary: The greater than 2 MeV electron flux was at high levels due to increased solar wind velocities from a negative polarity CH HSS. The greater than 10 MeV proton flux remained at background values.

Forecast: The greater than 2 MeV electron flux is expected to reach high levels for the next three days in response to CH HSS influence. The greater than 10 MeV proton flux is expected to continue at background levels.

Solar Wind

24 hr Summary: Solar wind parameters were consistent with waning negative polarity CH HSS effects. Total field gradually decreased from near 10 nT to less than 4 nT, while Bz was variable. The phi angle was predominately negative. Solar wind velocities decreased from 550 to 500 km/s.

Forecast: Solar wind parameters are expected to continue with waning CH HSS conditions. Solar wind velocities are expected to gradually decrease for the next three days.

Geospace

24 hr Summary: The geomagnetic field was at quiet levels.

Forecast: Quiet conditions are expected to continue for all three days.

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Live data: SunSpotWatch.com

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