[Propagation+Space Weather] Today's Space Weather Forecast Discussion on 2018 Apr 27 1230 UTC

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Here is the current forecast discussion on space weather and geophysical activity, issued 2018 Apr 27 1230 UTC.

Solar Activity

24 hr Summary: Solar activity was very low. Region 2706 (N03W33, Axx/alpha) continued to decay and was inactive. No Earth-directed CMEs were observed in available coronagraph imagery.

Forecast: Solar activity is expected to be very low over the next three days (27-29 Apr).

Energetic Particle

24 hr Summary: The greater than 2 MeV electron flux reached high levels this period with a peak flux of 4,390 pfu at 26/1850 UTC. The greater than 10 MeV proton flux was steady at background levels throughout the period.

Forecast: The greater than 2 MeV electron flux is expected to reach high levels each of the next three days (27-29 Apr). The greater than 10 MeV proton flux is expected to persist at background levels throughout the forecast period.

Solar Wind

24 hr Summary: The solar wind environment was at nominal levels. Solar wind speed was steady near 375 km/s. Total field ranged from 1 to 5 nT and Bz was variable. Phi angle was positive.

Forecast: Solar wind parameters are expected to remain at nominal levels for the forecast period (27-29 Apr).

Geospace

24 hr Summary: The geomagnetic field was quiet.

Forecast: The geomagnetic field is expected to be at mostly quiet levels, with a chance for isolated unsettled periods, all three days (27-29) Apr.

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