*********************************************************************** Product: Daily Forecast of Geomagnetic Activity Issued: 2019 November 16 07:01UTC 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 15.11.2019 at 20:00 UTC was 70 sfu. The background X-Ray flux is at the class A8 level. The geomagnetic field was at very quiet levels on November 15. 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: 340 km/s. Solar Wind speed from STEREO A: 390 km/s. Solar Wind speed from STEREO B: --- km/s. The southward component Bz is: 1 nT south. 3. Solar Energetic Particle Events Protons and electrons are quiet. 4. Coronal Holes A new coronal hole (CH944) was in Earth facing position on November 12-13. Weak effects from this CH are expected on the first half of November 16. A new coronal hole (CH945) will be in Earth facing position on November 17-18. 5. Geophysical Activity Forecast The geomagnetic field is expected to be at quiet to unsettled levels on November 16-17 and at quiet levels on November 18 due to CH944 effects. Date Estimated Ap index Expected geom. storm 2019.11.16 07 - 2019.11.17 06 - 2019.11.18 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 ***************************************************************************