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  • Weekly Highlights of Solar and Geomagnetic Activity, 21 - 27 February 2

    From SWPC.Webmaster@noaa.gov@21:1/5 to All on Mon Feb 28 13:00:12 2022
    XPost: rec.radio.amateur.space, rec.radio.shortwave, rec.radio.info

    :Product: Weekly Highlights and Forecasts
    :Issued: 2022 Feb 28 0132 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
    #
    # Weekly Highlights and Forecasts
    #
    Highlights of Solar and Geomagnetic Activity
    21 - 27 February 2022

    Solar activity ranged from very low to low levels throughout the
    week. Regions 2954 (N17, L=118, class/area=Hsx/120 on 21 Feb) and
    2955 (N14, L=107, class/area=Hsx/150 on 22 Feb) were the primary
    regions on the disk, but remained quiescent throughout the period.
    No Earth-directed CMEs were observed.

    No proton events were observed at geosynchronous orbit.

    The greater than 2 MeV electron flux at geosynchronous orbit reached
    high levels on 26 Feb, and was normal to moderate throughout the
    remainder of the period.

    Geomagnetic field activity reached active levels on 21 Feb and Minor
    (G1) geomagnetic storm levels on 22 Feb due to the influence of a
    positive polarity CH HSS. Active conditions were once again observed
    on 27 Feb due to another geoeffective positive polarity CH HSS.
    Quiet and quiet to unsettled conditions were observed throughout the
    remainder of the week under a background solar wind environment.

    Forecast of Solar and Geomagnetic Activity
    28 February - 26 March 2022

    Solar activity is expected to be very low with a chance for C-class
    flares throughout the outlook period.

    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 28 Feb-08 Mar, 12-17 and 20-22 Mar
    in response to enhanced solar wind conditions associated with
    recurrent CH HSSs.

    Geomagnetic field activity is expected to reach active levels on 28
    Feb-01 Mar, 05-06, 11-12, and 19-21 Mar due to multiple recurrent CH
    HSSs. Quiet and quiet to unsettled field activity is expected to
    prevail throughout the remainder of the outlook period.

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