UK Met Office

“A stronger display, possibly reaching G2-class, could occur Saturday, July 11, to Sunday, July 12, if a coronal mass ejection (CME) reaches Earth.”

“A G1 geomagnetic storm could mean aurora on the northern horizon from U.S. states close to the border with Canada — most likely across parts of Montana, North Dakota, Minnesota and Wisconsin.”

“During a G2 geomagnetic storm, northern parts of Washington, Idaho, Montana, North Dakota, South Dakota, Minnesota, Wisconsin, Michigan and Maine stand a chance. There is also potential for observati…”

“G3-class geomagnetic storm is possible”

“at least three CMEs that left the sun on July 1 could impact Earth on Sunday, July 5”

“A coronal mass ejection (CME) arrival is likely to arrive early on the 03 Jul, leading to an increase in potential visible aurora”