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SOLAR WATCH * Huge X8.2 Flare Sept. 10, 2017! (Updated Daily)
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[quote:Hugh M Eye:MV8xMzgyOTUyXzM0NzEwMDM3XzUxQUZENjdG] AR1620 still growing and has fired off at least 8 C-flares. 50% chance of M-flares today. SIDC Daily Report- COMMENT: Five sunspot groups were reported today by Catania. Two of them are expected to produce flaring activity: Catania sunspot groups 27 (NOAA AR 1618) and 31 (NOAA AR 1620) have beta-gamma-delta and beta-gamma configurations of their photospheric magnetic field, respectively. [b]Strong magnetic flux emergence that takes place in the Catania sunspot group 31 (NOAA AR 1620) since yesterday noon will probably lead to an M-class flare.[/b] In any case, C-class flares are almost certain as the background X-ray flux is now very close to the C1 level. [b]A proton event is possible in case of a strong flare in Catania sunspot group 27 or 31 (NOAA ARs 1618 or 1620) due to their position in the western solar hemisphere[/b]. A possibly Earth-directed CME was detected this morning originating from the filament channel right to the south of Catania sunspot group 31 (NOAA AR 1620). It was not a halo CME according to the SOHO/LASCO data, and STEREO A SECCHI/COR2 data indicate a low speed of this CME (around 300 km/s), so we expect at most a shock arrival at the Earth without any significant geomagnetic disturbance as a result. The Earth is currently in the sheath flow after the shock arrival this morning detected at 04:38 UT by ACE and at 04:32 UT by SOHO/CELIAS. The interplanetary magnetic field (IMF) magnitude in the sheath flow decreased from moderately high values (around 10 nT) to the current values around 7-8 nT, and the IMF is directed predominantly northward, so the geomagnetic conditions stayed on the quiet to unsettled level up to now. We do not expect the arrival of the ICME driver of the shock, so the geomagnetic activity will stay at the quiet to unsettled level in the coming hours. http://sidc.oma.be/products/meu/ The slow CME mentioned above seen on STEREO Ahead movie: http://stereo.gsfc.nasa.gov/browse/2012/11/26/ahead_20121126_cor2_512.mpg [/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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