Space Weather Forecast - Discussion

Issued: 2018 May 28 0030 UTC
Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center and processed by SpaceWeatherLive.com

Solar activity

24 h Summary
Solar activity was very low. Region 2712 (N15E28, Cro/beta) exhibited intermediate and leader spot development, but remained quiet. Region 2711 (N05W84, Bxo/beta) remained quiet and stable as it approached the NW limb. No Earth-directed CMEs were observed in available coronagraph imagery.
Forecast
Solar activity is expected to continue at very low levels throughout the forecast period (28-30 May) with a slight chance for isolated C-class flare activity.

Energetic Particles

24 h Summary
The greater than 2 MeV electron flux reached moderate levels and the greater than 10 MeV proton flux was steady at background levels.
Forecast
The greater than 2 MeV electron flux is expected to reach moderate levels each of the next three days (28-30 May) and the greater than 10 MeV proton flux is expected to persist at background levels throughout the forecast period.

Solar Wind

24 h Summary
Solar wind parameters were at background levels throughout the period. Solar wind speeds averaged near 350 km/s until around 27/1930 UTC when they increased to approximately 400 km/s to end the period. Total field strength values ranged between 1-6 nT while the Bz component varied between +/-4 nT. Phi angle remained oriented in a predominately positive solar sector.
Forecast
The near-Earth solar wind environment is expected to be slightly enhanced on days one and two (28-29 May) due to the influence of a positive polarity, north polar-connected CH HSS. Mostly background levels are expected on day three (30 May).

Geospace

24 h Summary
The geomagnetic field was quiet throughout the period.
Forecast
The geomagnetic field is expected to be at quiet to unsettled levels on days one and two (28-29 May) due to the influence of a positive polarity, north polar-connected CH HSS. Mostly quiet levels are expected on day three (30 May).
Current data suggest that it is not possible to see aurora now at middle latitudes

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