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  • Weekly Highlights of Solar and Geomagnetic Activity, 08 - 14 April 2024

    From SWPC.Webmaster@noaa.gov@3:633/280.2 to All on Tue Apr 16 03:00:40 2024
    Subject: Weekly Highlights of Solar and Geomagnetic Activity, 08 - 14 April 2024

    :Product: Weekly Highlights and Forecasts
    :Issued: 2024 Apr 15 0158 UTC
    # Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
    # Product description and SWPC contact on the Web
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    # Weekly Highlights and Forecasts
    #
    Highlights of Solar and Geomagnetic Activity
    08 - 14 April 2024

    Solar activity reached high levels on 11 Apr due to an M5.4 flare at
    11/1706 UTC from Region 3637 (S12, L=231, class/area=Cso/40 on 14
    Apr); the largest event of the period. Moderate levels of solar
    activity were observed on 13-14 Apr due to an M2.4 flare at 13/0502
    UTC and an M4.3 flare at 14/0232 UTC from Region 3637. The remainder
    of the period saw low levels of solar activity with C-class flares
    observed. Two CMEs, associated with filament eruptions near N20E02
    at 11/0600 UTC and S16W14 at 12/0020 UTC, were anticipated to arrive
    on 14 Apr, but ultimately were not detected in the solar wind by the
    end of 14 Apr.

    No proton events were observed at geosynchronous orbit.

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

    Geomagnetic field activity was quiet to unsettled over 08-10 Apr due
    to positive polarity CH HSS influences. Quiet and unsettled levels
    were observed over 11-12 Apr, and quiet levels were observed over
    13-14 Apr, as CH HSS influences subsided and nominal solar wind
    conditions returned.

    Forecast of Solar and Geomagnetic Activity
    15 April - 11 May 2024

    Solar activity is expected to be at low to moderate levels
    throughout the outlook period, with C-class flare activity expected
    and a varying chance for M-class flare activity.

    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) storm
    levels on 15 Apr due to CH HSS influences and CME effects. Quiet and
    quiet to unsettled levels are expected to prevail throughout the
    remainder of the period.


    --- MBSE BBS v1.0.8.4 (Linux-x86_64)
    * Origin: NOAA Space Weather Prediction Center (3:633/280.2@fidonet)