WARNING: Geomagnetic K-index: 4 “expected”

Space Weather Message Code: WARK04
Serial Number: 3740
Issue Time: 2020 Jul 24 2210 UTC

WARNING: Geomagnetic K-index: 4 “expected”
Valid From: 2020 Jul 24 2210 UTC
Valid To: 2020 Jul 25 0900 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at

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” for example in: Sweden, Finland and Norway.

pss.swpc.noaa.gov. .