904
FXXX06 KWNP 060256
WEKHIL

:Product: 7-day Space Weather Highlights
:Issued: 2025 Oct 06 0233 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact on the Web
# https://www.swpc.noaa.gov/content/subscription-services
#
#                7-day Space Weather Highlights
#
Highlights of Solar and Geomagnetic Activity
29 September - 05 October 2025

Solar activity reached moderate levels on 29 Sep-03 Oct, with a
total of twelve M-class flares (R1-Minor) observed. Region 4232
(N04, L=53, class/area=Dhi/310 on 03 Oct) produced five M-flares
throughout the week, including the largest of the period; an M3.6 at
29/0145 UTC. On 03 Oct, two slow-moving Earth-directed CMEs were
observed. The first CME was associated with an M1.5/2n flare at
03/0523 UTC from Region 4236 (N10, L=62, class/area=Ekc/320 on 04
Oct), and the second CME was associated with a filament eruption
from near the ESE limb at 03/1830 UTC. Both CMEs are expected to
arrive after midday on 07 Oct.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit was at
normal to moderate levels on 29-30 Sep, and high levels on 01-05
Oct.

Geomagnetic field activity reached G1 (Minor) storm levels on 29 Sep
due to negative polarity CH HSS influences. A combination of CH HSS
influences and likely transient activity led to periods of G3
(Strong) storming on 30 Sep and 02 Oct, and periods of G2 (Moderate)
storming on 01 Oct. Positive polarity CH HSS influences prevailed
over 03-05 Oct, with geomagnetic field activity reaching G1 (Minor)
storm periods on 03 Oct, active conditions on 04 Oct, and quiet to
unsettled levels on 05 Oct.