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  • Weekly Highlights of Solar and Geomagnetic Activity, 07 - 13 November 2

    From SWPC.Webmaster@noaa.gov@3:633/280.2 to All on Tue Nov 15 05:00:10 2022
    Subject: Weekly Highlights of Solar and Geomagnetic Activity, 07 - 13 November 2022

    :Product: Weekly Highlights and Forecasts
    :Issued: 2022 Nov 14 0703 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
    07 - 13 November 2022

    Solar activity was at low to high levels. Low levels were observed
    on 08-10 Nov and again on 13 Nov. Moderate levels occurred on 11-12
    Nov due to M1 flare activity from Region 3141 (N14, L=318,
    class/area Eki/610 on 11 Nov). These flares were an M1/1f at 11/0714
    UTC, an M1/Sn at 11/1140 UTC, and an M1/Sf at 12/0018 UTC as well as
    a total of 41 C-flares. High levels occurred on 07 Nov (reported on
    previous weekly) due to an M5 flare from Region 3141 at 07/0011 UTC
    along with an associated Type II radio sweep and a 740 sfu Tenflare.
    Region 3141 continued to exhibit growth through 11 Nov and developed
    into a beta-gamma-delta magnetic class on 10-11 Nov before slowly
    decaying to near 270 millionths by 13 Nov. Region 3140 (N25, L=326,
    class/area Dai/230 on 13 Nov) began to exhibit growth and
    development of trailing spots beginning on 11 Nov and was
    responsible for 12 C-flares. No Earth-directed CMEs were observed
    during the reporting period.

    No proton events were observed at geosynchronous orbit.

    The greater than 2 MeV electron flux at geosynchronous orbit reached
    high levels on 07 and 10-11 Nov due to weak transient activity. The
    peak flux was 9,400 pfu at 07/0925 UTC.

    Geomagnetic field activity ranged from quiet to G1 (Minor) storm
    levels. Solar wind parameters indicated a possible weak transient on
    07-08 Nov. Total field increased to near 15 nT while the Bz
    component deflected southward from approximately 07/0845-1745
    reaching a maximum of -15 nT. The geomagnetic field responded with
    quiet to G1 (Minor) storming on 07 Nov followed by quiet to active
    levels on 08 Nov and quiet to unsettled levels on 09 Nov. Quiet
    conditions were observed on 10 Nov under a nominal solar wind
    regime. On 11-13 Nov a weak, negative polarity, CH HSS became
    geoeffective. Solar wind speed increased to near 490 km/s by midday
    on 12 Nov. Total field increased to near 14 nT late on 11 Nov before
    declining to near 6-7 nT. The geomagnetic field responded with quiet
    to unsettled levels on 11-13 Nov.

    Forecast of Solar and Geomagnetic Activity
    14 November - 10 December 2022

    Solar activity is expected to be very low to low throughout the
    outlook period (14 Nov-10 Dec). There is a chance for M-class flares
    (R1-R2, Minor-Moderate) and a slight chance for X-class flares
    (R3-Strong) on 14-16 Nov and again on 28 Nov-10 Dec due to the flare
    potential of Regions 3140 and 3141.

    There is a slight chance for an S1 (Minor) solar radiation storm on
    14-17 Nov due to potential significant flare activity from Regions
    3140 and 3141.

    The greater than 2 MeV electron flux at geosynchronous orbit is
    expected to reach high levels on 21-29 Nov and again on 02-05 Dec
    due to recurrent CH HSS influence.

    Geomagnetic field activity is expected to reach unsettled to active
    levels on 15-16 Nov, 20-22 Nov, 24-28 Nov, 01-03 Dec, and 08-09 Dec
    due to recurrent CH HSS activity.


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    * Origin: NOAA Space Weather Prediction Center (3:633/280.2@fidonet)