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FXXX06 KWNP 110226
WEKHIL

:Product: 7-day Space Weather Highlights
:Issued: 2025 Aug 11 0200 UTC
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#                7-day Space Weather Highlights
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Highlights of Solar and Geomagnetic Activity
04 - 10 August 2025

Solar activity was at moderate levels throughout the week. Region
4168 (N05, L=103, class/area=Eki/350 on 08 Aug) produced a total of
fourteen M-class flares (R1-Minor events) this period, the largest
being an M4.4/1b at 05/1553 UTC. The M4.4 flare was accompanied by
Type-II (865 km/s) and IV radio sweeps, a 200 sfu Tenflare, and a
CME first visible in LASCO coronagraph imagery at around 05/1700
UTC. This CME likely arrived at Earth on 08 Aug embedded with
positive polarity CH HSS influence. No other Earth-directed CMEs
resulted from the activity observed over 04-10 Aug.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit was at
normal to moderate levels over 04-09 Aug, and increased to high
levels on 10 Aug.

Geomagnetic field activity was quiet to unsettled on 04-05 Aug in
response to waning negative polarity CH HSS influence. Quiet
conditions and a nominal solar wind environment prevailed over 06-07
Aug. Periods of G1 (Minor) storming were observed on 08 Aug due to
the onset of CIR and positive polarity CH HSS influence, and likely
the embedded 05 Aug CME. Periods of G1-G2 (Minor-Moderate) storming
were observed on 09 Aug due to continued positive polarity CH HSS
influence. Unsettled to active levels were observed over 10 Aug as
CH HSS influence weakened slightly.