- Older News Archive (September 2016)

September 25, 2016 @ 23:30 UTC
Geomagnetic Storm Watch
Good evening. Isolated periods of minor (G1) geomagnetic storming is being observed at higher latitudes thanks to gentle solar wind enhancements. A further increase will be possible by September 28th when a pair of coronal holes are expected to become geoeffective. Minor (G1) to Moderate (G2) storm conditions are expected within the next 48-72 hours. Sky watchers at middle to high latitudes should be alert for visible aurora during the next several nights. More updates in the days ahead.

Coronal Holes (SDO/AIA)

September 21, 2016 @ 01:50 UTC
Solar Update
New sunspot 2595 formed rapidly in the northwest quadrant, but is already approaching the west limb. Any future potential activity around this region will likely not be Earth directed. Elsewhere, region 2593, now rotating into the northwest quadrant at middle latitude, showed new spot growth within the past 12 hours and will be monitored. Minor C-Class solar flares will remain possible during the next 24 hours.

A brief period of minor (G1) geomagnetic storming was observed at higher latitudes following the onset of a high speed solar wind stream. A return to quieter levels is to be expected during the next day or so.

Attached image showing region 2595 is courtesy of SDO/HMI.

September 10, 2016 @ 15:00 UTC
Solar Update
Hello! Here is a quick solar update for Saturday. Solar activity remains at very low levels with no major flare activity to report. Region 2585 is stable as it moves closer towards the northwest limb. Region 2589, now rotating into the northwest quadrant, continued to slowly expand and will be monitored. Elsewhere, a new sunspot formed quickly at middle latitude and will be assigned region 2591 today. There will remain a chance for minor C-Class solar flares and a lower threat for an isolated M-Flare. Stay tuned to for the latest spaceweather data and imagery.

September 6, 2016 @ 09:30 UTC
Solar Update
Solar activity remains at very low levels and this trend could continue during the next 24 hours. The sun still provides us with a few features on Tuesday morning, including a prominence eruption off the southwest limb. Another thing to keep an eye on is a large plasma rich filament structure currently stretching across the northwest quadrant. Should the filament become unstable, an eruption could hurl a coronal mass ejection (CME) into space. More updates to follow whenever necessary.

September 4, 2016 @ 10:50 UTC
Aurora Show Continued
A high speed solar wind stream between 600 and 700 km/s continues to flow past our planet and this was great news for high latitude sky watchers last night. Visual aurora was again reported across many locations and below is some proof. Richard Dunstan from Alberta, Canada shares with us this nice 3 shot panorama that he captured very early Sunday morning. Sky watchers should remain alert during the next 24 hours as isolated periods of enhanced activity will remain a possibility.

September 2, 2016 @ 12:30 UTC
Moderate (G2) Geomagnetic Storm Observed
An extended period of moderate (G2) geomagnetic storming was observed late last night and into Friday morning thanks to a high speed solar wind stream moving past our planet. Sky watchers across many locations, including the northern tier USA and Canada reported a nice visual aurora display. Marketa Murray up in Alaska had a front row seat and shares with us a nice photo below. Great work as always and thanks for sharing!

Enhanced geomagnetic activity will remain likely during the next few days while a coronal hole remains geoeffective. More displays of aurora will be possible.

September 1, 2016 @ 09:10 UTC
Minor Storm Observed
Minor (G1) geomagnetic storming is being observed at higher latitudes early Thursday morning. Sky watchers, especially around the Arctic Circle should be alert for visible aurora.

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2016 Sep 01 0859 UTC
Synoptic Period: 0600-0900 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor

Alaskan Aurora - Photo by Ian Johnson

Another great image courtesy of Sacha Layos from Alaska.