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M1.3 solar flare from departing sunspot region 2664

Monday, 3 July 2017 - 16:48 UTC

M1.3 solar flare from departing sunspot region 2664

Now that is what we call a surprise! Departing sunspot region 2664 which is now behind the west limb just produced an M-class solar flare! Yes, you heard that right. It was an impulsive M1.3 solar flare that peaked at 16:15 UTC. This was the first M-class solar flare since an M5.8 solar flare that took place on 3 April. That is today exactly three months ago!

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Coronal mass ejection arrival

Saturday, 1 July 2017 - 17:26 UTC

Coronal mass ejection arrival

A coronal mass ejection shock arrived at DSCOVR today at 16:27 UTC and it increased the total strength of the interplanetary magnetic field to a respectable 18nT.

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Weak CME could give us a glancing blow

Thursday, 29 June 2017 - 23:13 UTC

Weak CME could give us a glancing blow

Yes, a sign of life from your SpaceWeatherLive staff! It has been a very quiet space weather period the past few weeks with pretty much no geomagnetic or solar events worth mentioning. We did reach the minor G1 geomagnetic storm levels briefly 2 weeks ago but that was nothing too spectacular. Our Sun is even more quiet: its been almost 3 months ago since we last had an M-class solar flare and the last C-class solar flare was also a solid 3 weeks ago. Does that mean you are reading a news article without any news? Not exactly as a possibly interesting eruption took place yesterday that could give us some aurora in a few days from now.

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Small coronal hole faces Earth

Saturday, 10 June 2017 - 09:08 UTC

Small coronal hole faces Earth

We're in a really quiet space weather period at the moment and there were no major space weather events the past week.

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Strong G3 geomagnetic storm

Sunday, 28 May 2017 - 14:50 UTC

Strong G3 geomagnetic storm

A coronal mass ejection arrived at our planet yesterday and managed to cause an unexpectedly strong geomagnetic storm. The strong G3 geomagnetic storm threshold was reached today at 04:19 UTC.

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Weak CME could give us a glancing blow

Wednesday, 24 May 2017 - 13:30 UTC

Weak CME could give us a glancing blow

A weak coronal mass ejection (CME) was launched yesterday by an eruption near the center of the earth-facing solar disk. The resulting coronal mass ejection might have an earth-directed component.

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Failed storm prediction, Next coronal hole

Thursday, 18 May 2017 - 13:22 UTC

Failed storm prediction, Next coronal hole

The NOAA SWPC had a moderate G2 geomagnetic storm watch in effect during the past few days but we unfortunately haven't even reached the minor G1 geomagnetic storm level. The G2 geomagnetic storm watch from the NOAA Space Weather Prediction Center was a result of a possible coronal mass ejection (CME) impact, something we indeed never mentioned on the site or on our social media pages. We did not believe this solar storm had an earth-bound component so choose to not mention it, a strategy that proved to be the right one. A minor G1 geomagnetic storm was however predicted due to a coronal hole solar wind stream but the stream was weaker than expected and only caused active geomagnetic conditions (Kp4) on 15 May. We are however getting another chance to reach geomagnetic storm levels thanks to yet another coronal hole.

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Coronal hole faces Earth

Saturday, 13 May 2017 - 08:40 UTC

Coronal hole faces Earth

Space weather has been very quiet for weeks now. Solar activity has been very low (A and B-class activity only) ever since 19 April and the last geomagnetic storm was a long time ago as well: 23 April. There were pretty much no interesting space weather events to report since that time but today we finally have something interesting to report. It might not be the biggest news we have ever brought to you (literally) but we take anything at the moment! It is a small coronal hole that is facing our planet today and it is now sending an enhanced solar wind stream towards us which could spark some nice aurora in a few days from now.

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Coronal hole faces Earth

Friday, 21 April 2017 - 09:58 UTC

Coronal hole faces Earth

Sunspot region 2651 remains fairly quiet with only some B-class activity yesterday. It had a small magnetic delta structure yesterday morning but this has decayed leaving not enough magnetic complexity for strong flares. That doesn't mean we should forget about this region as it can still regain some magnetic complexity which would increase the odds of seeing a strong solar flare but for now we should not expect much fireworks from it. But sunspot region 2651 aside, this sunspot region is not our main point of interest in this news article. We have a very familiar solar feature facing our planet right now: a large coronal hole that I'm sure you will recognize from last time around.

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G2 storm, Sunspot region 2651

Thursday, 20 April 2017 - 09:31 UTC

G2 storm, Sunspot region 2651

Moderate G2 geomagnetic storm conditions were observed this night due to persisting coronal hole solar wind stream influences. Conditions remain favorable for more geomagnetic storming likely up to the minor G1 storm level in the coming hours.

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Current data suggest that it is not possible to see aurora now at middle latitudes
Current data suggest that it is not possible to see aurora now at middle latitudes

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Today's space weather

Auroral activity Minor Severe
High latitude 30% 45%
Middle latitude 20% 5%
Predicted Kp max 4
Solar activity
M-class solar flare 1%
X-class solar flare 1%
B1.7
Moon phase
Waxing Crescent

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Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2018/01/14Kp5 (G1)
Number of spotless days in 2018:6
Last spotless day:2018/01/14

This day in history*

Solar flares
12005X7.1
22001M7.7
32004M6.1
41999M5.2
52010M3.4
ApG
1201626G1
2200319G1
3200418
4200517G1
5199815
*since 1994

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