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Major X9.05 flare from sunspot region 3842
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Strong R3 radio blackout in progress (≥X1 - current: X5.43)
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Major X1.57 flare from sunspot region 3766
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Extreme G5 geomagnetic storm (Kp9)$1$sThreshold Reached: 22:54 UTC
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For the first time since the Halloween Solar Storms of 2003 we have now officially reached the Extreme G5 geomagnetic storm threshold at 22:54 UTC.
With an observed Dst at -348 this is now one of the all-time strongest geomagnetic storms of the modern era only rivaled by the Halloween Solar Storms of 2003 and the 1989 storm that knocked out power grids in Quebec.
You are witnessing space weather history today... and it isn't over yet. Sky watchers in the USA, this is your ultimate chance to see aurora from states like California and Texas. Do not miss out on this opportunity!
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Extreme G5 geomagnetic storm (Kp9)
Threshold Reached: 02:40 UTC
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Midst among the excitement of the very first Extreme G5 geomagnetic storm since 2003, sunspot region 3664 continued doing what is is best at: producing major solar flares. It produced it's strongest solar flare thus far and the second strong solar flare of the current Solar Cycle. An X5.8 solar flare that peaked at 01:23 UTC. Yet another asymmetrical full halo coronal mass ejection was launched with a likely earth-directed component. We're in for a couple of more days with stormy space weather!
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Major X7.15 flare from sunspot region 3842
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Extreme G5 geomagnetic storm (Kp9)
Threshold Reached: 11:28 UTC
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Major X5.89 flare from sunspot region 3664
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Major X8.79 flare from sunspot region 3664
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Still early days following the X9 solar flare from sunspot region 3842 which is the strongest solar flare of Solar Cycle 25 thus far but we do have some preliminary SOHO/LASCO coronagraph imagery from SEEDs right now. We see the beginning of a very nice halo coronal mass ejection which is bound to hit Earth. Arrival times and Kp forecasts will be provided later but it's looking good for those who love aurora!
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Severe G4 geomagnetic storm (Kp8)
Threshold Reached: 16:28 UTC
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Severe G4 geomagnetic storm (Kp8)
Threshold Reached: 17:39 UTC
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Another look at the full hall coronal mass ejection launched by yesterday's M9.8 solar flare. As expected, the plasma cloud is earth-directed and expected to arrive late on Friday, 1 December. Expect geomagnetic storm conditions after the cloud arrives.
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Severe G4 geomagnetic storm (Kp8)
Threshold Reached: 16:57 UTC
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Today's M6.6 solar flare from sunspot region 3664 launched an energetic and wide coronal mass ejection which has a chance to arrive at Earth despite the region being close to the west limb. An asymmetrical full halo coronal mass ejection was launched which has a good chance to arrive at our planet late tomorrow or early on Wednesday, 15 May.
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Major X4.54 flare from sunspot region 3825
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Major X5.16 flare from sunspot region 4274
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A G4 or greater geomagnetic storm watch has been issued due to the expected arrival of the X1.8 coronal mass ejection which was launched this night around 02 UTC. The plasma cloud could arrive as early as tomorrow evening (10 October) and G4 to perhaps even G5 geomagnetic storm conditions are not to be ruled out. More information on our website.
spaceweatherlive.com/en/news…
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The X1 solar flare is a long duration event and a Earthward CME is very likely, while we await LASCO imagery for any details for an ETA we can enjoy this superb video of the flare
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Today's M1.7 solar flare from earth-facing sunspot region 3283 released a asymmetrical full halo coronal mass ejection which will impact our planet in about three days from now. More detailed information will be provided tomorrow. Animation: SOHO/LASCO.
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Severe G4 geomagnetic storm (Kp8)
Threshold Reached: 14:42 UTC
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Major X6.37 flare from sunspot region 3590
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Severe G4 geomagnetic storm (Kp8)
Threshold Reached: 14:15 UTC
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Strong R3 radio blackout in progress (≥X1 - current: X1.01)
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We are awaiting the arrival of a coronal mass ejection launched by an X1 solar flare that took place two days ago. The solar plasma cloud should arrive within the next 6 to 18 hours. A strong G3 geomagnetic storm watch is in effect for today, 30 October and tomorrow, 31 October.
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Severe G4 geomagnetic storm (Kp8)
Threshold Reached: 20:55 UTC
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The first of the anticipated coronal mass ejections has arrived at STEREO Ahead, a satellite slightly closer to the Sun than DSCOVR. The impact has been significant there with a maximum interplanetary magnetic field Bt value of 41nT and a minimum Bz value of -33nT at the time of writing. If we see similar values at Earth (which we should) this is certainly going to cause a significant geomagnetic storm where severe G4 geomagnetic storm conditions are absolutely possible! Charge your camera batteries and keep an eye on the data on spaceweatherlive.com. This could become one of the strongest geomagnetic storms of this Solar Cycle!
Data at swpc.noaa.gov/products/solar…
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Strong R3 radio blackout in progress (≥X1 - current: X9.05)
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Major X5.01 flare from sunspot region 3536
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Severe G4 geomagnetic storm (Kp8)
Threshold Reached: 19:44 UTC
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Sorry folks, 100.000 of you are trying to access our website and app. Our server is crying for help and the fire brigade is on their way to the server room. We hope to have the website up as soon as possible. Thanks for your understanding.
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Severe G4 geomagnetic storm (Kp8)
Threshold Reached: 17:41 UTC
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Another look at the X1 solar flare and the resulting CME as seen by SOHO/LASCO. A partial halo CME was launched with a clear earth-directed component. Impact expected late 30 October/early 31 October. Strong G3 geomagnetic storm possible this Halloween weekend!
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Major X3.98 flare from sunspot region 3664
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Today's X9.33 event was the strongest flare of this solar cycle. STEREO A coronagraph imagery shows the CME.
More: spaceweatherlive.com/en/news…
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Today's X2.8 solar flare (from AR3514, not 3520 as reported in our previous tweet) is the strongest solar flare of the current Solar Cycle thus far and looks to be eruptive as you can see on this animation curtesy of Solar Demon. Any ejecta will likely mostly miss our planet but a glancing blow is possible. We do however need to wait for LASCO imagery to confirm or deny this possibility.
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Major X2.39 flare from sunspot region 3883
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The complex eruption between sunspot regions 3614 and 3615 that took place today at 01:33 UTC peaked at X1.1 It is associated with an asymmetrical full halo coronal mass ejection.
It is highly likely that the resulting coronal mass ejection will arrive at Earth despite the bulk of the CME heading more northwards. An impact is expected somewhere during the second half of Monday, 25 March. A clear CME impact signature is likely and geomagnetic storming up to the G2 level, perhaps G3, can be expected.
Sunspot region 3615 remains a very complex sunspot region and more X-class activity is not impossible.
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Severe G4 geomagnetic storm (Kp8)
Threshold Reached: 19:01 UTC
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The north-south direction of the IMF (Bz) has turned southward as we enter the CME core and is now stable at -30.
Sky watchers in the following locations might be able to see aurora tonight:
San Francisco (CA) Las Vegas (NV) Albuquerque (NM) Dallas (TX) and Atlanta (GA)
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Severe G4 geomagnetic storm (Kp8)
Threshold Reached: 02:57 UTC
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Today's X4.5 solar flare from sunspot region 3825 was highly eruptive. A fast coronal mass ejection was launched and the bulk of it is heading east of our planet, but there is a faint full halo outline visible on LASCO coronagraph imagery. We expect a glancing blow during the second half of 16 September (Monday) with solar wind speeds between 700km/s and 800km/s at arrival. A strong G3 geomagnetic storm watch is in effect on Monday, 16 September.
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While the X8.7 solar flare is a headline grabbing event as it is the strongest solar flare of the current solar cycle thus far... based on STEREO A COR2 coronagraph imagery the resulting coronal mass ejection is likely not aimed at Earth.
The M4.4 solar flare that peaked not too long after the X8.7 solar flare came from newly assigned sunspot region 3682. It was actually very eruptive but the CME also doesn't look like it is aimed at Earth. Nonetheless, the two CMEs make for a very impressive sight on the STEREO A COR2 images!
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Severe G4 geomagnetic storm (Kp8)
Threshold Reached: 08:00 UTC
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A southern hemisphere coronal hole is facing Earth. Enhanced solar wind could arrive in ~3 days - Follow live on spaceweather.live/l/ch
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Strong R3 radio blackout in progress (≥X1 - current: X8.53)
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Strong M8.46 flare from sunspot region 4114
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Major X4.05 flare from sunspot region 4274
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Major X1.11 flare from sunspot region 3936
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Major X1.21 flare from sunspot region 4086
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Strong R3 radio blackout in progress (≥X1 - current: X2.87)
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Yesterday's M1.2 solar flare from departing sunspot region 3413 produced an impressive partial halo coronal mass ejection which is likely to arrive at our planet on Monday, 4 September.
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Strong G3 geomagnetic storm (Kp7)
Threshold Reached: 17:35 UTC
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Yesterday's X2.2 solar flare is the strongest solar flare of SC25 thus far. The eruption is impressive and despite it taking place near the NE limb, an asymmetrical halo CME became visible which indicates there is a good chance that part of the cloud will impact Earth.
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Major X7.15 flare from sunspot region 3842
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Severe G4 geomagnetic storm (Kp8)
Threshold Reached: 21:39 UTC
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Strong G3 geomagnetic storm (Kp7)
Threshold Reached: 1:11 UTC
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Major X1.73 flare from sunspot region 3765
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A filament eruption yesterday launched an asymmetrical full halo coronal mass ejection towards our planet. The cloud of solar plasma is expected to arrive late on 11 November. Minor (G1) to moderate (G2) geomagnetic storm conditions are expected once the CME passes Earth.
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Major X4.52 flare from sunspot region 3663
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Major X1.11 flare from sunspot region 3784
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Another look at the coronal mass ejection launched by the M4.4 flare earlier today. These images come from SOHO which is a space craft that looks at CMEs from earth's point of view. A fast and impressive CME can be seen but as mentioned earlier, it is not directed towards Earth.
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Sunspot region 3664 remains very active and since our last update two more earth-directed coronal mass ejections were launched. One from an X1.0 flare and one from an X2.2 flare. The CMEs can be seen on the animations from SOHO/LASCO below.
This means four CMEs are likely to arrive at Earth starting late on 10 May. Expect moderate to severe geomagnetic disturbances over a period of several days. In response to this, the @NWSSWPC has issued a warning for possible severe G4 (Kp8) geomagnetic conditions on Saturday, 11 May.
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Severe G4 geomagnetic storm (Kp8)
Threshold Reached: 13:46 UTC
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The X5.0 solar flare from sunspot region 3536 is the strongest solar flare since Sep. 2017. The resulting coronal mass ejection is impressive but based on the latest LASCO imagery and the location of the eruption, unlikely to impact Earth.
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Strong R3 radio blackout in progress (≥X1 - current: X1.02)
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Not all alerts are coming through on X due to hitting the API limits. There was a bit too much activity last 24 hours 🙈
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Today's X2.9 solar flare likely came from old sunspot region 3664 which was the source of many major X-class solar flares during its previous visit of the earth-facing solar disk and an extreme G5 geomagnetic storm which was the first of its kind in 21 years. The solar flare was highly eruptive but the resulting coronal mass ejection is not aimed towards our planet. What a return.
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Severe G4 geomagnetic storm (Kp8)
Threshold Reached: 04:04 UTC
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Severe G4 geomagnetic storm (Kp8)
Threshold Reached: 20:32 UTC
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Severe G4 geomagnetic storm (Kp8)
Threshold Reached: 16:47 UTC
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A transequatorial coronal hole is facing Earth. Enhanced solar wind could arrive in ~3 days - Follow live on spaceweather.live/l/ch
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Major X1.84 flare from sunspot region 3848
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Major X1.79 flare from sunspot region 4274
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Major X1.72 flare from sunspot region 3664
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Strong M8.2 flare from sunspot region 4100
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The M9 solar flare from sunspot region 3576 launched an asymmetrical full halo coronal mass ejection which likely has an earth-directed component. Arrival time is expected around midnight UTC on 13 February. Minor (G1) to moderate (G2) geomagnetic storm conditions are possible after the cloud arrives.
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Severe G4 geomagnetic storm (Kp8)
Threshold Reached: 01:21 UTC
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The M1.7 CME really packed a punch bringing us some great aurora visible from many locations. The Kp reached 7 on numerous occasions. On our site we now have an article with many pictures and videos made by the Twitter community:
spaceweatherlive.com/en/news…
Image by @dartanner
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Yet another gorgeous eruption from region 3229 this time peaking at M6.3. This eruption is the source of the minor S1 radiation storm we are in right now. A CME has been launched which likely has an earth-directed component but we await more images before a final conclusion.
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Strong G3 geomagnetic storm (Kp7)
Threshold Reached: 14:59 UTC
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Major X1.02 flare from sunspot region 3664
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Sunspot region 4100 produced a gorgeous long duration M8.2 solar flare today peaking at 00:05 UTC. This region is close to the center of the Earth-facing solar disk and the eruption is associated with a Type II radio emission. This along with the most recent coronagraph imagery show us that a coronal mass ejection was launched which highly likely will have an earth-directed component. Exciting times! More information later today.
Follow it live on spaceweatherlive.com
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Strong M8.87 flare from sunspot region 3664
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Severe G4 geomagnetic storm (Kp8)
Threshold Reached: 23:34 UTC
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Severe G4 geomagnetic storm (Kp8)
Threshold Reached: 02:07 UTC
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A major X7.1 solar flare (R3 radio blackout) peaked around complex Beta-Gamma-Delta sunspot region 3842 while we Europeans were all sleeping on one ear.
The solar flare peaked at 22:20 UTC and is in fact the second strongest solar flare of the current Solar Cycle thus far! An exciting way to wake up I can tell you that!
There are currently only two SOHO/LASCO coronagraph frames which show the resulting coronal mass ejection from Earth's point of view. The flare which produced a Type II radio sweep was not highly eruptive as you might expect from such an event but it did produce a halo coronal mass ejection with an earth-directed component. It is however not a very large or very fast CME based on the first few images. A more detailed analyses will be made later.
Follow it live on spaceweatherlive.com
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Today's M8.2 solar flare launched a beautiful asymmetrical full halo coronal mass ejection into space which is expected to arrive at our planet tomorrow (June 1) somewhere in the afternoon... UTC time of course.
Strong G3 (Kp7) to severe G4 (Kp8) geomagnetic storm conditions are to be expected which could result in aurora becoming visible from locations like England and Germany in Europe.
More information at: spaceweatherlive.com/en/news…
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Major X2.87 flare from sunspot region 3520
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Major X1.45 flare from sunspot region 3697
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