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Product: Daily Forecast of Geomagnetic Activity
Issued: 2022 August 16 06:52UTC
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 15.08.2022 at 20:00 UTC was 131 sfu.
The background X-Ray flux is at the class B7.5 level.
The geomagnetic field was at quiet levels on August 15.
AR3079 erupted on August 15 at 17:35 peak time producing a strong M9.0 class solar flare and a radioblackout of category R1.
No obviously Earth directed CMEs were observed in available LASCO imagery.
The Kp index now is at quiet levels with Kp=2.

2. Solar Wind Geomagnetic Activity
Solar Wind speed from ACE: 374 km/s.
Solar Wind speed from STEREO A: 450 km/s.
Solar Wind speed from STEREO B: - km/s.
The southward component Bz is: 2 nT south.

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

4. Coronal Holes
A recurrent equatorial coronal hole (CH1094) will rotate across the central meridian on August 14-16.

5. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet levels on August 16, quiet to minor storm (G1) levels on August 17 due to effects from coronal hole (CH1094) and at active to minor storm (G1) levels on August 18.

   Date      Estimated Ap index      Expected geom. storm
2022.08.16           05                        -
2022.08.17           18                        G1
2022.08.18           35                        G1

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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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