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  • Weekly Highlights of Solar and Geomagnetic Activity, 30 May - 05 June 2

    From SWPC.Webmaster@noaa.gov@21:1/5 to All on Mon Jun 6 13:00:11 2022
    XPost: rec.radio.amateur.space, rec.radio.shortwave, rec.radio.info

    :Product: Weekly Highlights and Forecasts
    :Issued: 2022 Jun 06 0147 UTC
    # Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
    # Product description and SWPC contact on the Web
    # https://www.swpc.noaa.gov/content/subscription-services
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    # Weekly Highlights and Forecasts
    #
    Highlights of Solar and Geomagnetic Activity
    30 May - 05 June 2022

    Solar activity ranged from very low to low levels throughout the
    highlight period. On 30 May, Region 3019 (N11, L=042, class/area
    Cro/030 on 21 May) produced a C1.5 flare at 30/0027 UTC. Weak
    C-class activity was also observed from Region 3029 (S18, L=199,
    class/area Axx/010 on 04 Jun) on 02 Jun and 04 Jun. A 6 degree long
    filament erupted at 31/2351 UTC, centered near S11W08. A CME was
    detected in STEREO imagery, first visible at 01/0224 UTC, with a
    possible Earth-directed component. Another filament eruption was
    observed at 02/0500 UTC. This 20 degree long filament was centered
    near S35W35 with a subsequent CME detected in LASCO imagery at
    02/0612 UTC and with a possible Earth-directed conponent.

    No proton events were observed at geosynchronous orbit.

    The greater than 2 MeV electron flux at geosynchronous orbit was at
    high levels through the period. A maximum of 9,720 pfu was observed
    at 03/1515 UTC.

    Geomagnetic field activity was at quiet to unsettled levels.
    Isolated unsettled levels were observed on 30-31 May due to
    recurrent, negative polarity CH HSS influence. Quiet levels were
    observed on 01-05 Jun.

    Forecast of Solar and Geomagnetic Activity
    06 June - 02 July 2022

    Solar activity is expected to be at very low to low levels through
    the outlook period. A chance for moderate levels exists on 08-24 Jun
    due to the return of old Regions 3014 (N22, L=104) and 3017 (N12,
    L=089), both M-class flare producers on their last transit.

    No proton events are expected at geosynchronous orbit.

    The greater than 2 MeV electron flux at geosynchronous orbit is
    expected to reach high levels on 26-30 Jun and 01-02 Jul due to CH
    HSS effects. Normal to moderate levels are anticipated on 06-25 Jun.

    Geomagnetic field activity is expected to be at unsettled to active
    levels on 13-17 Jun and 23-26 Jun due to recurrent CH HSS
    influences. Mostly quiet conditions are expected to prevail
    throughout the remainder of the outlook period.

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