*********************************************************************** Product: Daily Forecast of Geomagnetic Activity Issued: 2019 November 12 06:38UTC 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 11.11.2019 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 to unsettled levels on November 11. 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: 340 km/s. Solar Wind speed from STEREO A: 380 km/s. Solar Wind speed from STEREO B: --- km/s. The southward component Bz is: 9 nT north. 3. Solar Energetic Particle Events Protons and electrons are quiet. 4. Coronal Holes An equatorial coronal hole (CH943) was in Earth facing position on 6-8 November. There are no effects up to now from this CH. Weak geomagnetic impact noticed on November 11 but it is unclear the source if it is a weak impact from a CME or from the CH943. 5. Geophysical Activity Forecast The geomagnetic field is expected to be at quiet levels, with a chance for unsettled intervals, on November 12 due to CH943 weak effects and at quiet levels on November 13-14. Date Estimated Ap index Expected geom. storm 2019.11.12 05 - 2019.11.13 03 - 2019.11.14 02 - *************************************************************************** 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 ***************************************************************************