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Product: Daily Forecast of Geomagnetic Activity
Issued: 2025 July 05 05:36UTC
Prepared by the Athens Space Weather Forecasting Center
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I. Solar activity
--Current Status
Solar Flux (10.7cm) measured on 04.07.2025 at 23:00 UTC was 119 sfu.
The background X-Ray flux is at the class B5.7 level.
No obviously Earth directed CMEs were observed in available LASCO imagery on July 01-03.
A coronal hole (CH1304) at southern hemisphere rotated into an Earth facing position on June 29 - July 04.

II. Solar Energetic Particle Events
Protons and electrons fluxes are quiet.

III. Interplanetary and Geomagnetic conditions
The solar wind speed measured by ACE satellite reached the max value 440 Km/s on July 05 at 03:10 UT during the last 24 hours.
The solar wind speed from STEREO A was detected 400 Km/s during the last 24 hours.
The vertical component of IMF Bz reached the max value -9 nT on July 04 at 21:15 UT during the last 24 hours.
The geomagnetic field was at quiet to active levels during the last 24 hours.
The Kp index now is at unsettled levels with Kp=3.

IV. 3-day Geomagnetic Activity Forecast
The geomagnetic field is expected to be at quiet to unsettled levels on July 05-07.

DateAp index forecastGeomagnetic Activity level
05.07.202510Quiet to Unsettled
06.07.202508Quiet to Unsettled
07.07.202508Quiet to Unsettled

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Athens Space Weather Forecasting Center
Physics Department, National & Kapodistrian University of Athens
Athens Neutron Monitor Station A.NE.MO.S
Tel.: +30 210 727 6901
email: spaceweather@phys.uoa.gr
URL: http://spaceweather.phys.uoa.gr
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