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FXXX06 KWNP 030511
WEKHIL

:Product: 7-day Space Weather Highlights
:Issued: 2025 Nov 03 0428 UTC
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#                7-day Space Weather Highlights
#
Highlights of Solar and Geomagnetic Activity
27 October - 02 November 2025

Solar activity was at low levels on 27 Oct - 01 Nov. Solar activity
reached moderate levels on 02 Nov due to a single M1.0 flare that
occurred at 02/0026 UTC from a region beyond the East limb and
became the largest flare of the week. All the active regions that
crossed the visible solar disk this week presented a simple magnetic
configuration (alpha or beta) and an unremarkable overall activity.
Region 4267 (N04, L=60, class/area=Cso/120 on 28 Oct) was the most
flaring region during the week, with three C-class flares: a C1.6 at
28/1626 UTC, a C4.7 at 01/1655 UTC and a C8.2 at 02/1246 UTC. Three
Type-II radio bursts were observed on 29-31 Oct and were likely
associated with far-sided activity: 29/0012 UTC (est. speed 1,357
km/s), 30/0424 UTC (est. 691 km/s) and 31/2013 UTC (est. 542 km/s).

Multiple CMEs were observed in coronagraph imagery during the week,
but they were mostly far-sided. The CME that erupted around 30/0645
UTC from a region near N21E32 presented a potential Earth-directed
component, and its modeled propagation suggested a partial impact on
Earth's magnetosphere arriving on 02 Nov. However, no clear CME
influences were observed on the solar wind data near-Earth during
the period.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit reached
the 1,000 pfu threashold around 31/1200 UTC and remained at high
levels until the end of the period. The maximum > 2MeV electron
flux of 1,260 pfu was observed on 02/1650 UTC by the GOES-19
satellite.

Geomagnetic field activity was quiet on 27 Oct and 01 Nov, and
reached active levels on 28-31 Oct and 02 Nov. Five synoptic periods
of minor storming (G1) levels were observed on 30-31 Oct due to the
solar wind maximum disturbances caused by the high speed stream
(HSS) associated to a positive coronal hole that dominated the
geospace during the period.