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Subject: Weekly Highlights of Solar and Geomagnetic Activity, 03 - 09 March 2025
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Date: Mon, 10 Mar 2025 13:00:05 EDT
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:Product: Weekly Highlights and Forecasts
:Issued: 2025 Mar 10 0111 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
#
#                Weekly Highlights and Forecasts
#
Highlights of Solar and Geomagnetic Activity
03 - 09 March 2025

Solar activity was moderate on 05 and 07 March with two M1 flares,
neither had any significant radio or CMEs associated. The rest of
the period was at low levels. No significant CMEs were observed. 

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit was at
high levels on 04 March. Low to moderate levels were observed for
the rest of the period. 

Geomagnetic field activity reached moderate levels on 09 March due
to negative polarity CH HSS influences. Solar wind speeds reached
peaks of near 675 km/s. Minor storm levels were observed on 08 March
in response to the same CH HSS effects. Active levels were observed
late on 04 March into early on 05 March due to suspected weak CME
influences. Quiet to unsettled conditions prevailed for the
remainder of the period. 

Forecast of Solar and Geomagnetic Activity
10 March - 05 April 2025

Solar activity is expected to be at low to moderate levels for the
outlook period. No noteworthy regions are expected to return. 

No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is
expected to be at moderate to high levels on 29-31 March due to
recurrent CH HSS influences. Normal to moderate levels are expected
for the rest of the outlook period. 

Geomagnetic field activity is expected to be at minor storm levels
for 10-11 March, 18 March, 26-27 March, and 05 April, all due to
recurrent CH HSS influences. Quiet to unsettled levels are expected
for the remainder of the period. (subject to change with any CME
activity).