601
FXXX06 KWNP 101856
WEKHIL

:Product: 7-day Space Weather Highlights
:Issued: 2025 Nov 10 0522 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
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#                7-day Space Weather Highlights
#
Highlights of Solar and Geomagnetic Activity
03 - 09 November 2025

Solar activity ranged from low to high levels. Region 4274 (N25,
L=275, class/area=Ekc/900 on 09 Nov) was the largest and most
complex, and responsible for the majority of major events during the
past week. On 03 Nov, high levels were observed due to five M-class
(R1-R2/Minor-Moderate) flares that were produced by Region 4274. Two
flares had associated CMEs that were identified as containing
potentially Earth-directed components, an M1.6 (R1) at 03/0925 UTC
and an M5.0 (R2)at 03/1011 UTC. Arrival of the CMEs at Earth were
estimated over 06-07 Nov. High activity levels continued on 04 Nov,
with the high flare being an X1.8/1b (R3-Strong) flare at 04/1751
UTC from Region 4274. Associated with the flare was a Tenflare and
Type IV radio sweep. Region 4276 (S17, L=240, class/area=Dai/180 on
07 Nov) also produced an X-class flare (R3) with an X1.1 flare at
04/2201 UTC with an associated Type IV radio sweep and CME. Analysis
of the ejecta from these events suggested potential to affect Earth
over 06-07 Nov. High solar activity was again observed on 05 Nov
following an M 7.4/2N (R2) flare at 05/1119 UTC and an M8.6/2B (R2)
flare at 05/2207 UTC from Region 4274. Tenflares and CMEs were
associated with both events. Arrival at Earth was estimated over
07-08 Nov. Moderate levels were observed on 06-07 Nov due to an M1.1
(R1) flare at 06/0431 UTC from Region 4276 and an M1.7/1n (R1) at
07/0716 UTC flare from Region 4274. Associated with the M1.7 was a
Type II (est 1,169 km/s) and Type IV radio sweep alongside a CME
that was likely to propogate off of the Sun-Earth line. Low solar
activity was observed on 08 Nov. Finally, on 09 Nov, Region 4274
produced an X1.7 (R3) flare at 09/0735 UTC. A complicated CME
signature was observed in subsequent coronagraph imagery. Analysis
and modelling of the event suggested potential for arrival at Earth
over 11-12 Nov.

No proton events were observed at geosynchronous orbit between 03-09
Nov.

The greater than 2 MeV electron flux at geosynchronous orbit was at
high levels on 03-05 Nov and at moderate levels on 06-09 Nov. The
maximum flux of the greater than 2 MeV electrons measured by GOES-19
satellite during the week was 2,440 pfu at 04/1805 UTC.

Geomagnetic field activity was between quiet to G3 (Strong)
geomagnetic storm levels. Active conditions on 03 Nov were observed
due to weak influence from a CME that left the Sun on 31 Oct.
Unsettled conditions were observed on 04 Oct due to positive
polarity coronal hole influence. G2 (Moderate) geomagnetic storm
conditions late on 05 Nov and G3 (Strong) geomagnetic storm
conditions early on 06 Nov resulted from the onset of a CME that
left the Sun on 03 Nov. G1 (Minor) storm levels were observed late
on 06 Nov and in to 07 Nov as more CMEs that left the Sun over 03-04
Nov passed by Earth. G2 conditions were again observed on 08 Nov due
to the passage of a CME that left the Sun on 04 Nov. Only quiet to
unsettled condtions were observed on 09 Nov.