017
FXXX06 KWNP 280156
WEKHIL

:Product: 7-day Space Weather Highlights
:Issued: 2025 Jul 28 0129 UTC
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#                7-day Space Weather Highlights
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Highlights of Solar and Geomagnetic Activity
21 - 27 July 2025

Solar activity was at low levels. The largest flare was a C8.1/Sf at
24/0545 UTC from an unnumbered region located behind the west limb.
Region 4149 (N17, L=247, class/area Eko/280 on 25 Jul) produced a
C7.4/Sf at 25/0101 UTC. Several C-class flares were also observed
from several other regions during the highlight period. No
Earth-directed CME activity was observed.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit was at
high levels on 21-22 July and 24-27 July with a normal to moderate
period on 23 July. The maximum flux was 13,000 pfu observed at
21/1700 UTC.

Geomagnetic field activity reached G1 (Minor) storm levels on 22 and
23 July due to negative polarity CH HSS influence. Solar wind speeds
were elevated to as high as 737 km/s late on 23 July. The remaining
days were quiet to active levels due to weak negative polarity CH
HSS influence.