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04:47 AM
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SOLAR WATCH * Huge X8.2 Flare Sept. 10, 2017! (Updated Daily)
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[quote:Anonymous Coward 12394735:MV8xMzgyOTUyXzMwMDY5MzUzXzI0QkM4Qzg4] [quote:amywood71605:MV8xMzgyOTUyXzMwMDY5Mjc3XzEwMjU0MDI0] [quote:TS66:MV8xMzgyOTUyXzMwMDY5MjYzX0U1M0I1N0M=] I seem to have lost track of current solar events in the last couple days, so what is Space Weather's [b]A>50[/b] warning us of ??? We should be clear for a couple days yes ? WATCH: Geomagnetic A-index of 50 or greater predicted NOAA Scale: Periods reaching the G3 (Strong) Level Likely Valid for UTC Day: 2012 Mar 13 Potential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude. Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices. Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur. Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur. Radio - HF (high frequency) radio may be intermittent. Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon. [/quote] So look tomorrow night, or possible tonight? I'm in Northern Vermont and try to look any chance I can. Saw the aurora for my very first time back in January and it was awesome! [/quote] It's looking pretty quiet right now, and I'm not aware of any further incoming CMEs ... solar winds are still rather high, but proton flux is at a minimum, Bzs are settling down, couple of low level C flares ... Have I missed something ?? amy ~ Auroras are awesome, but I don't know that we will see any today or tomorrow. Other than this warning, everything else seems to indicate no. Again I feel like I missed something. [/quote]
Original Message
Please See Current Events Discussion On Last Page :)
We have just had another huge X flare measuring at a X8.2 originating from sunspot 2673
On September 11, 2017
[
link to legacy-www.swpc.noaa.gov
]
ALL flares recorded ARE Earth facing regardless of where the sunspot is located
-----------
CME FROM X9 HAS ARRIVED!
Issue Time: 2017 Sep 07 2242 UTC
WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2017 Sep 07 2255 UTC
Valid To: 2017 Sep 07 2330 UTC
IP Shock Passage Observed: 2017 Sep 07 2229 UTC
On September 6th we have had 2 X flares! A X2.2 at 09:10 utc & a secend larger flare just a few hours later of X9.3 at 12:02 utc. There is a large widespread Earth directed CME associated with this latest X flare as we can see here
[
link to stereo.gsfc.nasa.gov (secure)
]
[
link to stereo.gsfc.nasa.gov (secure)
]
An update as to the arrival time of this CME will be added once all data has been reviewed.
The X9.3 flare is the 14th largest X flare ever recorded!
On September 4th we had 7 M flares from fast growing sunspot 2673, with at least 1 large dense Earth directed CME. This CME will arrive late in the day on Wednesday September 6th.
There is now a 25% chance for X flares over the next 24hrs & 71% chance for M flares
We have a Long Duration M2.4 Solar Flare starting
01:05 UTC July 14th 2017
There was a full halo CME observed with this solar flare. The associated CME is Earth Directed. See discussion on the last page for all updates!
1,000,000 Views hit on July 3, 2012
A big thanks to all the wonderful contributors of
the GLP Solar Watch thread!
Please See Current Events Discussion On Last Page :)
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