ALERT: Geomagnetic K-index: 4

Space Weather Message Code: ALTK04
Serial Number: 2166
Issue Time: 2020 Sep 23 2128 UTC

ALERT: Geomagnetic K-index: 4
Threshold Reached: 2020 Sep 23 2100 UTC
Synoptic Period: 2100-2400 UTC

Active Warning: YES!

NOAA Space Weather Scale descriptions can be found at Scales Explanation

Potential Impacts: Area of impact primarily poleward of 65° Geomagnetic Latitude.
Induced Currents – Weak power grid fluctuations can occur.
Aurora – Northern Lights may be visible at High Latitudes (60°+) for example in: Sweden, Finland and Norway.

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