*********************************************************************** Product: Daily Forecast of Geomagnetic Activity Issued: 2020 March 30 07:58UTC Prepared by the Athens Space Weather Forecasting Center *********************************************************************** 1. Solar activity Solar activity was increasing during the past 24 hours. Solar Flux (10.7 cm) measured on 29.03.2020 at 20:00 UTC was 68 sfu. The background X-Ray flux is at the class A1 level. The geomagnetic field was at quiet to unsettled levels on March 29. No obviously Earth directed CMEs were observed in available LASCO imagery. The Kp index now is at almost quiet levels with Kp=2. 2. Solar Wind Geomagnetic Activity Solar Wind speed from ACE: 365 km/s. Solar Wind speed from STEREO A: --- km/s. Solar Wind speed from STEREO B: --- km/s. The southward component Bz is: 4 nT south. 3. Solar Energetic Particle Events Protons and electrons are quiet. 4. Coronal Holes A new coronal hole (CH956) on the southern hemisphere of the visible solar disk, which is an extension of the southern polar coronal hole, was in Earth facing position on March 26-27. 5. Geophysical Activity Forecast The geomagnetic field is expected to be at quiet to unsettled levels on March 30-31 with a chance for active intervals due to weak effects from CH956 and at quiet levels on April 1. Date Estimated Ap index Expected geom. storm 2020.03.30 07 - 2020.03.31 10 - 2020.04.01 04 - *************************************************************************** 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 ***************************************************************************