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

Here is the current forecast discussion on space weather and geophysical activity, issued 2017 Apr 10 1230 UTC.

Solar Activity

24 hr Summary: Solar activity was at very low levels. B-class flare activity was observed from both Regions 2648 (S03W42) and 2650 (N08E64, Cro/beta). Region 2648 is currently a plage region. Region 2650 was relatively stable as it rotated further into view.

An approximate 14 degree filament eruption was observed centered near N16E35 in H-alpha imagery beginning at 09/2025 UTC. This event was likely associated with a CME off the east limb observed in SOHO/LASCO C2 imagery beginning at 10/0212 UTC. The CME is not expected to have a geoeffective component.

Forecast: Solar activity is expected to be very low with a slight chance for C-class activity through the forecast period (10-12 Apr).

Energetic Particle

24 hr Summary: The greater than 2 MeV electron flux was at moderate to high levels with a peak flux of 3,030 pfu observed at 09/1745 UTC. The greater than 10 MeV proton flux remained at background values.

Forecast: The greater than 2 MeV electron flux is expected to be at moderate to high levels all three days (10-12 Apr). No solar radiation storms are expected during the forecast period.

Solar Wind

24 hr Summary: Solar wind parameters were slightly enhanced over the period with solar wind speed between 412 km/s and 490 km/s. Total field ranged from 5-9 nT while the Bz component was between +7 nT and -5 nT. Phi angle was oriented in a mostly positive (away) solar sector with variations into a negative (towards) sector after 10/0127 UTC.

Forecast: A weak connection to an isolated, positive polarity CH HSS is expected to enhance the solar wind environment during the forecast period (10-12 Apr).

Geospace

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

Forecast: Quiet to unsettled conditions are expected to prevail for the forecast period (10-12 Apr) as a weak connection to an isolated, positive polarity CH HSS is expected.

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