***********************************************************************
Product: Daily Forecast of Geomagnetic Activity
Issued: 2016 September 01 07:20UTC
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 31.08.2016 at 20:00 UTC was 98 sfu.
The background X-Ray flux is at the class B4 level.
The geomagnetic field was at quiet to unsettled levels on August 31.
No obviously Earth directed CMEs were observed in available LASCO imagery.
The Kp index now is at active levels with Kp=4.

2. Solar Wind Geomagnetic Activity
Solar Wind speed from ACE: 430 km/s.
Solar Wind speed from STEREO A: 680 km/s.
Solar Wind speed from STEREO B: --- km/s.
The southward component Bz is: 7 nT south.

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

4. Coronal Holes
A recurrent northern hemisphere coronal hole (CH758) was in an Earth facing position on August 29-31. A trans equatorial coronal hole (CH759) will be Earth facing on August 31-September 1.

5. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet to active levels on September 1-3. Minor storm intervals are also possible for this period.

   Date      Estimated Ap index      Expected geom. storm
2016.09.01           18                        G1
2016.09.02           14                        --
2016.09.03           12                        --

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