[Propagation+Space Weather] Today's Space Weather Forecast Discussion on 2019 May 22 1230 UTC

[nw7us@sunspotwatch.com]

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Here is the current forecast discussion on space weather and geophysical activity, issued 2019 May 22 1230 UTC.

Solar Activity

24 hr Summary: Solar activity remained very low. There were no sunspots on the visible disk, and no Earth-directed CMEs were observed in available coronagraph imagery.

Forecast: Solar activity is expected to remain very low on 22-24 May.

Energetic Particle

24 hr Summary: The greater than 2 MeV electron flux was at normal to moderate levels and the greater than 10 MeV proton flux remained at background levels.

Forecast: The greater than 2 MeV electron flux is expected to be at normal to moderate levels on 22-24 May. The greater than 10 MeV proton flux is expected to continue at background levels.

Solar Wind

24 hr Summary: Solar wind measurements from DSCOVR were close to background levels. Total field strength was generally less than 5 nT, and Bz was unremarkable. Wind speeds averaged between 350-400 km/s. The phi angle was in a predominately positive orientation until approximately 22/0731 UTC when a SSBC occurred, as phi became negative.

Forecast: Minor enhancements in the solar wind are anticipated on 22 May with a series of weak, recurrent, negative polarity CH HSSs. Near-background conditions are expected to return on 23-24 May.

Geospace

24 hr Summary: The geomagnetic field was quiet.

Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on 22 May as a result of weak, recurrent, negative polarity CH HSSs. A return to mostly quiet levels is anticipated by 23 May, and is expected to continue into 24 May.

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Live data: SunSpotWatch.com

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