***********************************************************************
Product: Daily Forecast of Geomagnetic Activity
Issued: 2020 September 30 05:07UTC
Prepared by the Athens Space Weather Forecasting Center
***********************************************************************

1. Solar activity
Solar activity was decreasing stable during the past 24 hours.
Solar Flux (10.7 cm) measured on 29.09.2020 at 20:00 UTC was 74 sfu.
The background X-Ray flux is at the class A2.1 level.
The geomagnetic field was at almost quiet to active levels on September 29.
No obviously Earth directed CMEs were observed in available LASCO imagery.
The Kp index now is at active levels with Kp=4.

2. Solar Wind Geomagnetic Activity
Solar Wind speed from ACE: 600 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 north.

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

4. Coronal Holes
A new coronal hole (CH973), which is an extension of the northern polar coronal hole of the visible solar disk will be in Earth facing position on September 24-28.

5. Geophysical Activity Forecast
The geomagnetic field is expected to be at unsettled to active levels on September 30, with a chance for minor storm (G1) storm intervals, and at quiet to unsettled levels on October 1-2.

   Date      Estimated Ap index      Expected geom. storm
2020.09.30           16                        -
2020.10.01           09                        -
2020.10.02           07                        -

***************************************************************************
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
***************************************************************************