Last saved by: Maria Livada

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Product: Daily Forecast of Geomagnetic Activity
Issued: 2026 June 02 02:36UTC
Prepared by the Athens Space Weather Forecasting Center
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I. Solar activity
--Current Status
Solar Flux (10.7cm) measured on 01.06.2026 at 23:00 UTC was 132 sfu.
The background X-Ray flux is at the class B7.5 level.
No obviously Earth directed CMEs were observed in available LASCO imagery on May 29-31.
An equatorial coronal hole (CH1372) will be Earth facing on May 31-June 01.

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 445 Km/s on June 01 at 03:40 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 -6 nT on June 01 at 23:55 UT during the last 24 hours.
The geomagnetic field was at quiet to unsettled levels during the last 24 hours.
The Kp index now is at quiet levels with Kp=1.

IV. 3-day Geomagnetic Activity Forecast
The geomagnetic field is expected to be at quiet levels on June 02 and at quiet to active levels on June 03-04.

Date | Ap index forecast | Geomagnetic Activity level
02.06.2026 | 05 | Quiet
03.06.2026 | 12 | Quiet to Active
04.06.2026 | 14 | Quiet to Active

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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
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