***********************************************************************
Product: Daily Forecast of Geomagnetic Activity
Issued: 2023 July 28 05:42UTC
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 27.07.2023 at 20:00 UTC was 165 sfu.
The background X-Ray flux is at the class C1.9 level.
The geomagnetic field was at quiet levels on July 27.
Two M-class flares produced on July 27 and the biggest was the M1.9 solar flare. The M1.9 class solar flare erupted on July 27 at 09:51 UT (peak time) from AR3376 and a radioblackout (R1) was observed.
No obviously Earth directed CMEs were observed in available LASCO imagery.
The Kp index now is at quiet levels with Kp=1.

2. Solar Wind Geomagnetic Activity
Solar Wind speed from ACE: 393 km/s.
Solar Wind speed from STEREO A: 400 km/s.
Solar Wind speed from STEREO B: - km/s.
The southward component Bz is: 1 nT north.

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

4. Coronal Holes
No obvious coronal holes are currently in the visible solar disk.

5. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet levels on July 28-30.

   Date      Estimated Ap index      Expected geom. storm
2023.07.28           05                        -
2023.07.29           05                        -
2023.07.30           05                        -

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