Space Weather Message Code: ALTK04
Serial Number: 2176
Issue Time: 2020 Oct 27 0901 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2020 Oct 27 0859 UTC
Synoptic Period: 0600-0900 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

[link to www.swpc.noaa.gov (secure)]