Here is the current forecast discussion on space weather and...

Here is the current forecast discussion on space weather and geophysical activity, issued 2017 Aug 04 1230 UTC.

Solar Activity

24 hr Summary: Solar activity was very low. Region 2670 (S05E39, Hsx/alpha) remained stable and only managed B-class flare activity. No Earth-directed CMEs were observed in available coronagraph imagery.

Forecast: Solar activity is expected to be at very low levels with a slight chance for C-class flares during the next three days (04-06 Aug).

Energetic Particle

24 hr Summary: The greater than 2 MeV electron flux was at normal to high levels. The greater than 10 MeV proton flux was at background levels.

Forecast: The greater than 2 MeV electron flux is expected to be at normal to moderate levels with a chance for high levels throughout the period (04-06 Aug). 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 indicated the arrival of a CIR ahead of a positive polarity CH HSS. Solar wind speed increased throughout the period from 350 km/s to near 675 km/s. Total field strength was elevated between 15 to 19 nT, while the Bz component was variable and reached a maximum southward deviation of -17 nT. The phi angle was negative until 04/0400 UTC, when a switch to a positive orientation was observed.

Forecast: The solar wind environment is expected to continue to become increasingly enhanced due to the arrival of a recurrent positive polarity, polar connected coronal hole on day one (04 Aug). Enhanced solar wind conditions are expected to persist into day two (05 Aug) and begin to gradually recover on day three (06 Aug).

Geospace

24 hr Summary: The geomagnetic field was quiet to active due to CH HSS influences.

Forecast: Geomagnetic field conditions are expected to increase to G2 (Moderate) geomagnetic storm levels late on 04 Aug due to the arrival of a recurrent positive polarity, polar connected CH HSS. Unsettled to G1 (Minor) conditions are likely on day two (05 Aug) as CH HSS effects continue. Quiet to active conditions are expected on day three (06 Aug) as CH HSS influence begins to subside.

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