Routine Space Environment Product Issued Weekly
Issued by NWS

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FXXX06 KWNP 150156
WEKHIL

:Product: 7-day Space Weather Highlights
:Issued: 2025 Sep 15 0137 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
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#                7-day Space Weather Highlights
#
Highlights of Solar and Geomagnetic Activity
08 - 14 September 2025

Solar activity was at low levels with only C-Class flares observed.
The largest flare of the period was a C7.6 from Region 4207 (N28,
L=48, class/area=Cso/80 on 11 Sep) at 11/1521 UTC. No significant
CME activity was observed.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit reached
high levels on 09, 13, and 14 Sep due to influences from multiple
coronal hole high speed streams (CH HSS). Normal to moderate levels
were observed on 08, 10, 11, and 12 Sep.

Geomagnetic field activity reached G2 (Moderate) storm levels on 09
Sep due to sustained period of southward Bz. G1 (Minor) storm levels
were observed on 14 Sep due to influences from a negative polarity
CH HSS. Quiet to active levels were observed on the remaining days
of the highlight period.