SolarHam.com - Older News Archive (October 2017)

October 13, 2017 @ 15:00 UTC
Moderate (G2) Geomagnetic Storm Observed
The ongoing coronal hole solar wind stream continues to move past our planet on Friday. A moderate (G2) geomagnetic storm warning is now in effect.

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2017 Oct 13 1459 UTC
Synoptic Period: 1200-1500 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate

Below is an awesome aurora shot captured during the ongoing geomagnetic disturbance by Marketa Murray from up in Alaska. Thanks for sharing!

October 12, 2017 @ 00:40 UTC
Geomagnetic Storm Watch
An expected coronal hole stream is now moving past Earth above 500 km/s. Periods of minor (G1) geomagnetic storming is being observed at higher latitudes. Sky watchers, especially around the Arctic Circle should be alert for visual aurora once dark outside.

October 9, 2017 @ 00:45 UTC
Solar Update / Coronal Hole
Good evening. Not much happening on the sun as of late and the visible disk is now currently spotless with region 2683 turning onto the west limb. There is currently no chance for noteworthy Earth facing solar flares.

A solar wind stream flowing from coronal hole #34 is expected to reach Earth by October 11th. Minor (G1) geomagnetic storming will be possible at higher latitudes. More updates in the days ahead. Image courtesy of SDO/AIA.