G1 (Minor) Geomagnetic Storm Watch Issued for 31 Jan - 01 Feb
published: Thursday, February 2, 2017 01:06 UTC 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.