Northern Lights Now – Active Region 2673 may have rotated around the limb, but today it proved it wasn’t quite done influencing Earth’s magnetosphere. An X8.28 flare and associated CME launched from the region on Sunday October 10. The CME is so wide that NASA models are suggesting Earth will get a glancing blow on Sept 13.
Watch the flare erupt in AIA 304:
The flare released energetic particles that saturated the LASCO imagery on SOHO. In this loop, see the CME launching, then a “blizzard” as the sensors pick up the high energy particles associated with the eruption.
Check back soon as we have more information about when and how this will impact Earth and when to expect aurora
Northern Lights Now – A G3 storm watch is in effect for September 6 and 7 thanks to a solar storm launched from an Earth-directed solar eruption at active region 2673. Aurora hunters are expecting a mid-latitude display. Northern Lights Now will keep you up to date on the latest information in this live blog. We’ll be updating regularly, so come back often.
NLN Live Blog Update – Wed, Sept 9, 04:45 UTC (00:45 EST 9/9) Live blog time: 72h 45m
Whew! What a storm. There were two distinct periods of G4 storming in the last 36 hours. The first was timed well for North American aurora hunters and the second for our Europeans followers. This was a treat, especially for this late in the solar cycle.
The core of both CMEs has now passed and the magnetosphere should start to settle down. There still may be a couple more G1/G2 substorms in the next 24 hours, but the event is coming to an end. Thank you all for reading along and sharing your photos. Please follow NLN on Twitter and on Facebook and sign up for our email list to learn about the next storm when it comes.
NLN Live Blog Update – Wed, Sept 8, 22:00 UTC (16:00 EST 9/8) Live blog time: 68h 00m
Bz continues to be south and wingKP is indicating G4 storming is going on again now. IF you have clear dark skies go out aurora hunting!
NLN Live Blog Update – Wed, Sept 8, 15:15 UTC (11:15 EST 9/8) Live blog time: 63h 15m
In the last update we mentioned that it looks like another CME core is coming through. It is here now and G4 storming is happening again. Tell your friends to go out and look at the sky if it’s dark and clear! Please share this info and help your friends get a chance to see the aurora for themselves.
NLN Live Blog Update – Wed, Sept 8, 12:15 UTC (08:15 EST 9/8) Live blog time: 60h 15m
What a night! There were two periods of G4 storming before the Bz shifted as Earth exited the core of CME. Aurora hunters from Europe to Central North America got a show.
But wait there’s more! In the last update we mentioned the possibility that there may be another CME core arriving soon. About 45 minutes ago it did as shown in the solar wind data. With Bz this strong south, we are now expecting another round of at least G3 storming over the next 1-4 hours.
NLN Live Blog Update – Wed, Sept 8, 05:30 UTC (01:30 EST 9/8) Live blog time: 53h 30m
There are interesting questions about the future geomagnetic activity of this storm. The IP shocks from both the M5.5 and the X9.33 flares have now arrived. In a regular solar storm, the shock arrives and is followed soon after by the core or body of the CME. In this case, the cores of both CMEs have interacted. This is a very complex, and low confidence, forecast. The bottom line is: We might see another round of G3 storming as the body of the X9.33 CME arrives, or the body of the CME may miss Earth and it might be over. Best thing to do is watch the Bz which, by the way, just flopped back to negative. If Bz stays negative, our west coast US followers and Australia/New Zealand followers may get a show tonight.
NLN Live Blog Update – Wed, Sept 8, 02:45 UTC (22:45 EST 9/7) Live blog time: 50h 45m
Epic Aurora going on! G4 storming is logged and continues. Bz shifted back to the south, so it may slow for a bit now. Check out this small sampling of images coming in:
Northern Lights Now – There have been several notable eruptions on the Sun since November 4th. As of now, models are not indicating G1 storming, but with the combination of events, and models predicting KP=4, it is not out of the question that there may be some G1 storming between 11/8 and 11/9.
Early on the 4th a filament erupted from the SW portion of the disk. There is a clear CME lift off, but it appears to be headed mostly to the South and West of the Earth-Sun line. Here is an animatedGIF showing about 4 hours in AIA 304 with showing the filament erupting
About 6 hours later, a small B2.2 flare happened around an unnumbered region in the NW quadrant. Just after this low level eruption, a wave is visible traveling southward through the corona. Dimming was also seen in automated CME detection during this flare. Often, dimming is indicative of a launching CME, but there was no clear sign of a CME on LASCO. If this flare did launch a CME towards Earth, it will be a stealth CME. This flare was optical only and did not register on NLN’s Solar Flare Browsing page. In this video, the first half shows the full disk, the second half zooms in on the actual flare.
Finally, a pair of filaments erupted early on the 5th. The first, bigger one launched from the NW quadrant of the Solar disk from a location just north of the area of the B2.2 flare. This filament also showed what looked to be a launching CME on AIA 304, however most of the material looks to be traveling North and West. The other filament erupted on the East of the disk at nearly the same time and is much smaller. They are both visible in this AIA 193 imagery, the second is just barely visible.