*********************************************************************** Product: Daily Forecast of Geomagnetic Activity Issued: 2018 February 14 05:22UTC Prepared by the Athens Space Weather Forecasting Center *********************************************************************** 1. Solar activity Solar activity was almost stable during the past 24 hours. Solar Flux (10.7 cm) measured on 13.02.2018 at 20:00 UTC was 76 sfu. The background X-Ray flux is at the class A6 level. The geomagnetic field was at very quiet levels on February 13. 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: 310 km/s. Solar Wind speed from STEREO A: 340 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 The coronal hole CH851 will be in Earth facing position on February 12-14. A small equatorial coronal hole (CH852) was in Earth facing position on February 9-10. 5. Geophysical Activity Forecast The geomagnetic field is expected to be at quiet levels, with a chance for unsettled levels, on February 14 and at quiet to minor storm levels, with a chance for moderate intervals, on February 15-16 due to the arrival of the CME of February 12 combined with the arrival of a hig hspeed stream from CH851. Date Estimated Ap index Expected geom. storm 2018.02.14 04 - 2018.02.15 32 G1-G2 2018.02.16 18 G1 *************************************************************************** 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 ***************************************************************************