1. Forum
  2. USENET
  3. rec.radio.amateur.space

  • Weekly Highlights of Solar and Geomagnetic Activity, 05 - 11 January 2026

    From SWPC.Webmaster@SWPC.Webmaster@noaa.gov to rec.radio.amateur.dx,rec.radio.amateur.space,rec.radio.shortwave,rec.radio.info on Mon Jan 12 13:00:06 2026
    From Newsgroup: rec.radio.amateur.space

    :Product: Weekly Highlights and Forecasts
    :Issued: 2026 Jan 12 0311 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
    05 - 11 January 2026

    Solar activity ranged from low to moderate levels. Forty-five weak
    to middle level C-class activity was observed from various regions
    on the disk during the period. A majority of the activity was
    observed from Regions 4334 (S16, L=200, class/area Dao/150 on 08
    Jan), 4336 (S10, L=166, class/area Eko/430 on 09 Jan) and 4337 (N25,
    L=243, class/area Dao/020 on 08 Jan). At 11/2314 UTC, a
    long-duration M3.3 (R1-Minor) flare was observed from behind the ESE
    limb. Several potential Earth-directed CMEs were observed leaving
    the Sun on 08 Jan with possible impact on late 10 Jan to early on 11
    Jan.

    No proton events were observed at geosynchronous orbit.

    The greater than 2 MeV electron flux at geosynchronous orbit was at
    normal to moderate levels on 05, 08, 09 and 11 Jan with high levels
    observed on 06, 07 and 10 Jan. A peak flux of 2,507 pfu was observed
    on 10/1635 UTC.

    Geomagnetic field activity was at quiet to active levels on 05 Jan
    in response to declining CH HSS influence. Quiet levels were
    observed on 06 and 07 Jan. Quiet to active levels were observed on
    08, 09 and early 10 Jan due to CH HSS influence. Activity levels
    increased to G1 (Minor) to G2 (Moderate) activity levels during late
    10 Jan through 11 Jan due to CME effects from the 08 Jan CME coupled
    with CH HSS effects.

    Forecast of Solar and Geomagnetic Activity
    12 January - 07 February 2026

    Solar activity is likely to remain at low levels, with a chance for
    R1 (Minor) conditions and a slight chance for R2/R3
    (Moderate/Strong) over the next forecast period due to multiple
    regions on the visible disk as well as regions expected to return.

    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 12, 14-15, 21-27 and 30-31 Jan and
    01-03 and 05-07 Feb due to the anticipated influence of multiple,
    recurrent coronal holes. The remainder of the outlook period is
    likely to be at normal to moderate levels.

    Geomagnetic field activity is likely to reach G1 (Minor) geomagnetic
    storm levels on 12 and 29 Jan; unsettled to active levels on 13-16,
    19-23, 27-28, 30-31 Jan and 04-07 Feb. All enhancements in
    geomagnetic activity are due to the anticipated influence of
    multiple, recurrent CH HSSs. The remainder of the outlook period is
    expected to mostly quiet.

    --- Synchronet 3.21a-Linux NewsLink 1.2