[Propagation+Space Weather] Today's Space Weather Forecast Discussion on 2016 Aug 21 1230 UTC

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Here is the current forecast discussion on space weather and geophysical activity, issued 2016 Aug 21 1230 UTC.

Solar Activity

24 hr Summary: Solar activity was at very low levels with no flare activity observed. Region 2578 (N09W17, Bxo/beta) continued its slow decay phase. No Earth-directed CMEs were observed in available coronagraph imagery.

Forecast: Solar activity is expected to remain at very low levels over the next three days (21-23 Aug).

Energetic Particle

24 hr Summary: The greater than 2 MeV electron flux was at normal to moderate levels while the greater than 10 MeV proton flux remained at background levels throughout the period.

Forecast: The greater than 2 MeV electron flux is expected to continue at normal to moderate levels over the next three days (21-23 Aug). The greater than 10 MeV proton flux is expected to persist at background levels throughout the forecast period (21-23 Aug).

Solar Wind

24 hr Summary: Solar wind remained at background levels with variable speeds observed between 310km/s to 340 km/s. Bt ranged between 5-8 nT while the Bz component was mostly north to +6 nT. The phi angle was in a steady negative orientation throughout the period.

Forecast:

Background solar wind conditions are expected until late on day three (23 Aug) when a minor enhancement is likely due to the influence of a recurrent, negative polarity coronal hole high speed stream (CH HSS).

Geospace

24 hr Summary: The geomagnetic field was quiet throughout the period under a background solar wind environment.

Forecast: The geomagnetic field is expected to be mostly quiet until late on day three (23 Aug) when the influence of a negative polarity CH HSS is expected to cause unsettled conditions with isolated active periods possible.

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Live data: SunSpotWatch.com

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