G1 (Minor) geomagnetic storm underway
Earth is currently under the influence of a coronal hole high speed solar wind stream (CH HSS) which is causing geomagnetic storming around the poles.
K-index of 5 (G1-Minor) threshold was reached at 17:18 UTC today.
Area of impact is primarily poleward of 60 degrees Geomagnetic Latitude. Weak power grid fluctuations can occur, minor impact on satellite operations is possible, aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
The geomagnetic field is expected to continue at quiet to unsettled levels with isolated active periods possible from December 29 – 31 due to continued CH HSS effects.
Space Weather Message Code: ALTK05
Serial Number: 763
Issue Time: 2014 Dec 29 1718 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2014 Dec 29 1718 UTC
Synoptic Period: 1500-1800 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-
Featured image: SWPC
If you value what we do here, create your ad-free account and support our journalism.
Related articles
Producing content you read on this website takes a lot of time, effort, and hard work. If you value what we do here, select the level of your support and register your account.
Your support makes this project fully self-sustainable and keeps us independent and focused on the content we love to create and share.
All our supporters can browse the website without ads, allowing much faster speeds and a clean interface. Your comments will be instantly approved and you’ll have a direct line of communication with us from within your account dashboard. You can suggest new features and apps and you’ll be able to use them before they go live.
You can choose the level of your support.
Stay kind, vigilant and ready!
You can also support us by sending us a one-off payment using PayPal:
