Space Weather Message Code: ALTK06
Serial Number: 395
Issue Time: 2016 Feb 17 2308 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2016 Feb 17 2307 UTC
Synoptic Period: 2100-2400 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
Thank you for using the Product Subscription Service. If you would like to remove a product subscription or update the personal information in your account, go to the
Product Subscription Site. Please do not use the from address for correspondence, as it is not monitored. For comments or help, please contact
SWPC Help.