G2 Watch issued for 13 September; G1 Watch issued for 14 September
published: Wednesday, September 13, 2017 21:14 UTC UTC
A coronal hole high speed stream, originating from a recurrent, positive polarity coronal hole seen in the SDO/AIA 193 image above, is likely to cause geomagnetic storming at the G2 level on 13 September 2017, and at the G1 level on 14 September. Stay tuned for additional updates.