• Weekly Highlights of Solar and Geomagnetic Activity, 27 May - 02 June 2

    From SWPC.Webmaster@noaa.gov@21:1/5 to All on Mon Jun 3 13:00:08 2024
    XPost: rec.radio.amateur.space, rec.radio.shortwave, rec.radio.info

    :Product: Weekly Highlights and Forecasts
    :Issued: 2024 Jun 03 0120 UTC
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    # Weekly Highlights and Forecasts
    Highlights of Solar and Geomagnetic Activity
    27 May - 02 June 2024

    Solar activity ranged from low to high levels throughout the period.
    Region 3697 (S18, L=350, class/area=Eki/420 on 30 May) was the most
    productive region this period and produced five X-class flares, and
    seven M-class flares; the largest of which was an X2.8 flare at
    27/0708 UTC. Region 3691 (N25, L=042, class/area=Ekc/480 on 27 May)
    produced three M-class events and Region 3695 (N27, L=028,
    class/area=Cao/30 on 01 Jun) produced a single M-class flare. Other
    notable activity included a long-duration X1.4/2b flare at 29/1437
    UTC from Region 3697, with accompanying Type II and IV radio
    emissions, and an Earth-directed partial halo CME that arrived on 31
    May. Additionally, an impulsive X1.0/2b flare at 01/1836 UTC and a long-duration M7.3 flare at 01/1939 UTC, both from Region 3697,
    resulted in a CME that is likely to glance by Earth on 04 Jun.

    No proton events were observed at geosynchronous orbit.

    The greater than 2 MeV electron flux at geosynchronous orbit was at
    normal to moderate levels.

    Geomagnetic field activity was at quiet and quiet to unsettled
    levels throughout much of the period. An isolated period of G1
    (Minor) geomagnetic storming was observed early on 31 May due to CME

    Forecast of Solar and Geomagnetic Activity
    03 June - 29 June 2024

    Solar activity is likely to reach moderate and high levels
    throughout the period, with M-class flares likely and a varying
    chance for X-class flares through 29 Jun.

    No proton events are expected at geosynchronous orbit

    The greater than 2 MeV electron flux at geosynchronous orbit is
    expected to be at normal to moderate levels throughout the period.

    Geomagnetic field activity is likely to reach G1 (Minor) geomagnetic
    storm levels on 04 Jun, and active levels on 05 Jun, due to the
    anticipated glancing-blow arrival of the 01 Jun CME. Active
    contidiions are expected on 09 Jun due to CH HSS influences. Quiet
    and quiet to unsettled levels are expected to prevail throughout the
    remainder of the outlook period.

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