[Propagation+Space Weather] Today's Space Weather Forecast Discussion on 2018 Jan 24 1230 UTC

[nw7us@sunspotwatch.com]

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Here is the current forecast discussion on space weather and geophysical activity, issued 2018 Jan 24 1230 UTC.

Solar Activity

24 hr Summary: Solar activity was very low. No Earth-directed CMEs were observed in available satellite imagery.

Forecast: Solar activity is expected to remain at very low levels throughout the forecast period (24-26 Jan).

Energetic Particle

24 hr Summary: The greater than 2 MeV electron flux reached high levels with a peak flux of 1,111 pfu observed at 23/1940 UTC. The greater than 10 MeV proton flux was steady at background levels.

Forecast: The greater than 2 MeV electron flux is expected to be at moderate to high levels for the forecast period (24-26 Jan) due to CH HSS influence. 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 speed was in decline under the waning influences of a negative polarity CH HSS. Solar wind speed decreased from approximately 480 km/s to near 340 km/s. Total field ranged from 1-6 nT while the Bz component was between +/-3 nT. Phi angle was oriented in a mostly negative (towards) sector but became variable after 24/0230 UTC.

Forecast: Solar wind parameters are expected to be at nominal levels for the forecast period (24-26 Jan).

Geospace

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

Forecast: The geomagnetic field is expected to be at mostly quiet conditions for the next three days (24-26 Jan).

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