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Product: Daily Forecast of Geomagnetic Activity
Issued: 2022 April 16 06:48UTC
Prepared by the Athens Space Weather Forecasting Center
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1. Solar activity
Solar activity was decreasing stable during the past 24 hours.
Solar Flux (10.7 cm) measured on 15.04.2022 at 20:00 UTC was 110 sfu.
The background X-Ray flux is at the class C3.4 level.
The geomagnetic field was at unsettled to minor storm (G1) levels on Apr. 15.
A M2.2 class solar flare peaked  at 11:49  on Apr. 15 and a short radio blackout (R1) was observed. 
No obviously Earth directed CMEs were observed in available LASCO imagery.
The Kp index now is at unsettled levels with Kp=2.

2. Solar Wind Geomagnetic Activity
Solar Wind speed from ACE: 517 km/s.
Solar Wind speed from STEREO A: 400 km/s.
Solar Wind speed from STEREO B: - km/s.
The southward component Bz is: 5 nT north.

3. Solar Energetic Particle Events
Protons and electrons are quiet.

4. Coronal Holes
A equatorial coronal hole (CH1073) could rotate across the central meridian on April 12-13. A coronal hole (CH1074) at northern hemisphere will likely become Earth facing on Apr.14-15.

5. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet to active levels on Apr. 16-18 due to the coronal holes.

   Date      Estimated Ap index      Expected geom. storm
2022.04.16           12                        -
2022.04.17           10                        -
2022.04.18           12                        -

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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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