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Product: Daily Forecast of Geomagnetic Activity
Issued: 2016 November 25 07:15UTC
Prepared by the Athens Space Weather Forecasting Center
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1. Solar activity
Solar activity was almost stable during the past 24 hours.
Solar Flux (10.7 cm) measured on 24.11.2016 at 20:00 UTC was 79 sfu.
The background X-Ray flux is at the class A8 level.
The geomagnetic field was at quiet to minor storm levels on November 24.
No obviously Earth directed CMEs were observed in available LASCO imagery.
The Kp index now is at moderate storm levels with Kp=6.

2. Solar Wind Geomagnetic Activity
Solar Wind speed from ACE: 650 km/s.
Solar Wind speed from STEREO A: 420 km/s.
Solar Wind speed from STEREO B: --- km/s.
The southward component Bz is: 2 nT north.

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

4. Coronal Holes
A recurrent northern hemisphere coronal hole (CH773) rotated across the central meridian on November 18-23. 
A recurrent trans equatorial coronal hole (CH774) was Earth facing on November 20-22. 
A southern hemisphere coronal hole (CH775) will be Earth facing on November 24-25.

5. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet to minor storm levels on November 25-26 and at quiet to unsettled levels on November 27. Moderate storm levels are possible for  Nov. 25.

   Date      Estimated Ap index      Expected geom. storm
2016.11.25           30                        G1 - G2
2016.11.26           20                        G1
2016.11.27           14                        -

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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
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