G1 (Minor) Geomagnetic Storm Watch Issued for 31 Jan - 01 Feb
published: Wednesday, December 28, 2016 21:19 UTC
A G1 (Minor) Geomagnetic Storm Watch is valid beginning on 31 January through 01 February 2017 (UTC days) due the anticipated arrival of a co-rotating interaction region in advance of a recurrent, negative polarity coronal hole high-speed stream.