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FXXX06 KWNP 230156
WEKHIL

:Product: 7-day Space Weather Highlights
:Issued: 2024 Sep 23 0120 UTC
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#                7-day Space Weather Highlights
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Highlights of Solar and Geomagnetic Activity
16 - 22 September 2024

Solar activity was low with C-class flare activity observed over
16-21 Sep. Solar activity reached moderate levels on 22 Sep due to
an M3.7/2n flare at 22/2139 UTC from Region 3835 (); the largest
event of the week. Regions 3828 () and 3831 () produced most of the
C-class flare activity observed throughout the week. No
Earth-directed CMEs were observed.

The greater than 10 MeV proton flux reached S1 (Minor) levels at
17/0735 UTC, reached a peak flux of 33.6 pfu at 17/1050 UTC, and
decreased below the S1 level at 17/1615 UTC. The greater than 10 MeV
proton flux remained elevated over 18-19 Sep, but remained below the
S1 level. Background levels were observed over 20-22 Sep.

The greater than 2 MeV electron flux at geosynchronous orbit reached
high levels on 16-17, and 19-22 Sep, and normal to moderate levels
were observed on 18 Sep.

Geomagnetic field activity reached active levels on 16 Sep due to
positive polarity CH HSS influences early in the day, followed by
the initial arrival of CMEs that left the Sun on 13-14 Sep late in
the day. Periods of G1-G4 (Minor-Severe) storming were observed on
17 Sep due to sustained CME enhancements. Active conditions were
observed again on 18 Sep, with periods of G1 (Minor) storming
observed on 19 Sep, as CME influences waned and subsided. Quiet and
unsettled conditions were observed on 20 Sep followed by quiet
conditions over 21-22 Sep.