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Product: Daily Forecast of Geomagnetic Activity
Issued: 2022 May 18 08:07UTC
Prepared by the Athens Space Weather Forecasting Center
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1. Solar activity
Solar activity was increasing during the past 24 hours.
Solar Flux (10.7 cm) measured on 17.05.2022 at 20:00 UTC was 153 sfu.
The background X-Ray flux is at the class C1.4 level.
The geomagnetic field was at unsettled levels on May 17.
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: 503 km/s.
Solar Wind speed from STEREO A: - km/s.
Solar Wind speed from STEREO B: - km/s.
The southward component Bz is: 2 nT north.

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

4. Coronal Holes
A new equatorial coronal hole (CH1079) was Earth facing on May 16-18.

5. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet to unsettled levels on May 18-20 with a chance of active levels on May 20 due to effects from CH1079.

   Date      Estimated Ap index      Expected geom. storm
2022.05.18           08                        --
2022.05.19           10                        -
2022.05.20           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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