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Product: Daily Forecast of Geomagnetic Activity
Issued: 2022 August 11 06:07UTC
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 10.08.2022 at 20:00 UTC was 109 sfu.
The background X-Ray flux is at the class B2.6 level.
The geomagnetic field was at quiet to unsettled levels on August 10.
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: 535 km/s.
Solar Wind speed from STEREO A: 400 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 coronal hole (CH1093) at southern hemisphere was Earth facing on August 07-08. 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 to active levels on August 11 and at quiet levels on August 12-13.

Date Estimated Ap index Expected geom. storm
2022.08.11 10 -
2022.08.12 08 -
2022.08.13 05 -

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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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