• Weekly Highlights of Solar and Geomagnetic Activity, 06 - 12 June 2022

    From SWPC.Webmaster@noaa.gov@21:1/5 to All on Mon Jun 13 13:00:12 2022
    XPost: rec.radio.amateur.space, rec.radio.shortwave, rec.radio.info

    :Product: Weekly Highlights and Forecasts
    :Issued: 2022 Jun 13 0505 UTC
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    # Weekly Highlights and Forecasts
    Highlights of Solar and Geomagnetic Activity
    06 - 12 June 2022

    Solar activity ranged from very low to moderate levels. Very low
    levels were observed on 06-08 Jun. Low levels were observed on 09
    and 11-12 Jun with the majority of the C-class flares from Regions
    3029 (S17, L=204, class/area Dao/070 on 09 Jun) and 3030 (N20,
    L=113, class/area Eao/180 on 11 Jun). Region 3030 was also
    responsible for the moderate activity on 10 Jun due to an isolated
    M1/Sf flare at 10/1054 UTC. By 12 Jun, Region 3030 had rotated into
    view enough to determine it was two separate regions. The trailing
    spots were reclassified as Region 3032 (N21, L=106 class/area
    Dai/090 on 12 Jun). Just after the end of the period, an M3.4 flare
    was observed at 13/0407 UTC along with Type II and IV radio sweeps.
    The bulk of the flare activity was from Region 3032 with sympathetic
    flaring noted around the same time from Region 3030. No
    Earth-directed CMEs were observed, however we are waiting on further coronagraph imagery associated with the recent M3.4 flare to
    determine if there is an Earth-directed component.

    No proton events were observed at geosynchronous orbit.

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

    Geomagnetic field activity was at or near background levels on 06-11
    Jun with solar wind below 400 km/s and total field ranging from 3-12
    nT. By 12 Jun, total field increased to 12-15 nT while the solar
    wind speed increased to 440-485 km/s as a weak positive polarity CH
    HSS became geoeffective. The geomagnetic field responded with quiet
    to unsettled levels on 06-07 Jun and 11-12 Jun while quiet
    conditions were observed on 08-10 Jun.

    Forecast of Solar and Geomagnetic Activity
    13 June - 09 July 2022

    Solar activity is expected to be very low to low with a chance for
    further M-class flares on 13-24 Jun due to potential flare activity
    from Regions 3030 and 3032.

    There is a chance for a greater than 10 MeV proton event in the next
    24 hours associated with the recent M3 flare.

    The greater than 2 MeV electron flux at geosynchronous orbit is
    expected to reach high levels on 17-22 Jun and again on 26 Jun - 02
    Jul due CH HSS influence.

    Geomagnetic field activity is expected to reach unsettled levels on
    13 Jun, 15-18 Jun, 23-26 Jun, 08-09 Jul with active levels on 13,16
    and 24 Jun due to recurrent CH HSS activity.

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