[Propagation+Space Weather] Today's Space Weather Forecast Discussion on 2018 Apr 15 1230 UTC

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Here is the current forecast discussion on space weather and geophysical activity, issued 2018 Apr 15 1230 UTC.

Solar Activity

24 hr Summary: Solar activity was very low. Region 2704 (N12E17, Axx/alpha) was quiet and stable. Several B-class flares were observed from an unnumbered spot group rotating around the East limb near N09. The largest was a B2 at 14/1919 UTC. No Earth-directed CMEs were observed.

Forecast: Solar activity is expected to be at low levels with a slight chance for isolated C-class flares for the forecast period (15-17 Apr).

Energetic Particle

24 hr Summary: The greater than 2 MeV electron flux reached high levels this period with a peak flux of 8,730 pfu at 14/2045 UTC. The greater than 10 MeV proton flux was steady at background levels.

Forecast: The greater than 2 MeV electron flux is expected to reach high levels each of the next three days (15-17 Apr). The greater than 10 MeV proton flux is expected to continue at background levels throughout the forecast period.

Solar Wind

24 hr Summary: Solar wind parameters continued at nominal levels over the period. Solar wind speed ranged from approximately 320-420 km/s. Total field ranged from 2-6 nT while the Bz component was between +/-4 nT. Phi angle was mostly oriented in a negative (towards) sector.

Forecast: Solar wind parameters are expected to be at or near nominal levels over the next three days (15-17 Apr).

Geospace

24 hr Summary: The geomagnetic field was quiet.

Forecast: Generally quiet conditions are expected to prevail over the next three days (15-17 Apr) under a nominal solar wind regime.

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