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  • Weekly Highlights of Solar and Geomagnetic Activity, 06 - 12 January 20

    From SWPC.Webmaster@noaa.gov@21:1/5 to All on Mon Jan 13 13:00:06 2025
    XPost: rec.radio.amateur.space, rec.radio.shortwave, rec.radio.info

    :Product: Weekly Highlights and Forecasts
    :Issued: 2025 Jan 13 0208 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
    06 - 12 January 2025

    Solar activity ranged from low to moderate levels. Region 3947 (N12,
    L=340, class/area=Ekc/370 on 08 Jan) produced the strongest event of
    the period, an M4.8 flare (R1-Minor) at 06/1624 UTC. Associated with
    the flare were Type II and Type IV radio sweeps. The CME produced
    originated from the W limb and no Earth-directed component was
    suspected. The only other region to produce an R1 event was 3737
    (S17, L=083, class/area=Cso/130 on 02 Jan) with an M1.1 flare at
    07/2305 UTC. No Earth-directed CMEs were identified in available
    coronagraph imagery.

    No proton events were observed at geosynchronous orbit.

    The greater than 2 MeV electron flux at geosynchronous orbit reached
    high levels on 06-09 Jan following influence from a positive
    polarity CH HSS. The remainder of the summary period was at normal
    to moderate levels.

    Geomagnetic field activity ranged from quiet to active levels.
    Active levels on 06 Jan and 08-10 Jan were associated with weak
    positive polarity CH HSS influence. The remainder of the summary
    period was at quiet to unsettled levels.

    Forecast of Solar and Geomagnetic Activity
    13 January - 08 February 2025

    Solar activity is expected to be at low levels, with a chance for
    M-class (R1-R2/Minor-Moderate) and slight chance for X-class events (R3/Strong), throughout the outlook period.

    No proton events are expected at geosynchronous orbit.

    The greater than 2 MeV electron flux at geosynchronous orbit is
    likely to reached high levels on 02-05 Feb due to recurrent CH HSS
    influence. The remainder of the outlook period is expected to be at
    normal to moderate levels.

    Geomagnetic field activity is expected to range from quiet to G1
    (Minor) geomagnetic storm levels. G1 conditions are likely on 31 Jan
    - 02 Feb due to the anticipated influence of a positive polarity CH
    HSS. Active conditions are likely on 13 Jan and 03-05 Feb. The
    remainder of the outlook period is expected to range from quiet to
    unsettled levels.

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