596
FXXX06 KWNP 090226
WEKHIL

:Product: 7-day Space Weather Highlights
:Issued: 2025 Jun 09 0153 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
02 - 08 June 2025

Solar activity ranged from low to moderate levels. Regions 4100
(N08, L=245, class/area Eki/440 on 31 May) and 4105 (S15, L=130,
class/area Eai/130 on 05 Jun) produced a few weak M-class (R1/Minor)
flares this period. The largest event was an M3.3/2b flare observed
at 02/1118 UTC from Region 4100. Weak, Earth-directed CME signatures
were observed on 03 and 07 June.

The greater than 10 MeV proton event that began at 31/1710 UTC,
reached the S2 (Moderate) levels at 01/0540 UTC, peaked at 666 pfu
at 01/0915 UTC, decreased below S2 levels at 01/1245 UTC and ended
at 02/0520 UTC.

The greater than 2 MeV electron flux at geosynchronous orbit was at
high levels on 02-06 June with a peak flux of 5,180 pfu observed at
06/1615 UTC. Normal to moderate levels were observed on 07-08 June.

Geomagnetic field activity was at Minor (G1) to Strong (G3) levels
on 02-04 June due to CME effects. During this period, total field
(Bt) peaked at 17 nT while Bz reached a southward extent of -15 nT.
Wind speeds began the period at 900 km/s, but decayed to near 500
km/s by 04 June. Mostly quiet to active levels were observed on
05-08 June under weaker CME effects coupled with some negative
polarity CH HSS effects.