255
FXXX06 KWNP 240156
WEKHIL

:Product: 7-day Space Weather Highlights
:Issued: 2025 Nov 24 0142 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
17 - 23 November 2025

Solar activity was at low levels. C-class activity was observed from
Regions 4274 (N25, L=274), 4284 (S07, L=177, class/area Dai/150 on
19 Nov), 4290 (S10, L=035, class/area Cao/120 on 22 Nov) and 4291
(S14, L=028, class/area Dao,120 on 22 Nov).

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit reached
high levels on 19-20 Nov with a peak flux of 2,880 pfu on 20/1435
UTC. Normal to moderate levels were reached on 17-18 Nov and 21-23
Nov.

Geomagnetic field activity was at mostly quiet to unsettled levels
with isolated active levels observed early on 17 Nov and midday on
23 Nov. Solar wind parameters were enhanced midday on 20 Nov when Bt
reached 18 nT and Bz reached values at -10 nT. Solar wind speeds
began the highlight period at about 550 km/s, declined to near 325
km/s early on 20 Nov and gradually increased to about 500 km/s late
on 23 Nov.