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Strong M-class flares, Coronal hole faces Earth

Saturday, 23 July 2016 - 17:30 UTC

Strong M-class flares, Coronal hole faces Earth

A series of strong M-class solar flares took place this morning. Three of them to be precise. All of these solar flares peaked at the M5 class (R2-moderate) or higher.

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Two M-class solar flares

Thursday, 21 July 2016 - 17:18 UTC

Two M-class solar flares

More than three months. That's how long it took for the Sun to boost solar activity up to moderate levels again. It was sunspot region 2567 which produced two M-class solar flares early this night. First an M1.2 (R1-minor) solar flare at 00:46 UTC which was quickly followed by an M1.0 (R1-minor) solar flare at 01:49 UTC. These are the first M-class solar flares since the M6.7 solar flare that took place on 18 April.

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CME impact, northward Bz

Wednesday, 20 July 2016 - 17:29 UTC

CME impact, northward Bz

A shock in the solar wind was observed by ACE, yesterday around 23:00 UTC. This is likely the expected coronal mass ejection of a C1 solar flare that took place on 17 July.

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Slow earth-bound coronal mass ejection

Monday, 18 July 2016 - 18:51 UTC

Slow earth-bound coronal mass ejection

A long duration C1 solar flare from sunspot regions 2565/2567 peaked yesterday around 08:00 UTC. It was responsible for a faint coronal mass ejection that likely has an earth-directed component.

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Quiet Sun, Coronal hole faces Earth

Tuesday, 5 July 2016 - 21:17 UTC

Quiet Sun, Coronal hole faces Earth

Five B-class solar flares. That's the only solar activity the Sun managed to produce last week. We're only two years after solar maximum but the Sun has already gone very quiet as if it approaches solar minimum. Could this be a sign for the years to come? We hope not.

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DSCOVR to go live on 27 July

Saturday, 25 June 2016 - 14:24 UTC

DSCOVR to go live on 27 July

Exciting news from the NOAA SWPC! They have announced that their Deep Space Climate Observatory (DSCOVR) spacecraft will replace NASA's Advanced Composition Explorer (ACE) spacecraft on Wednesday 27 July at 16:00 UTC as the primary source of real time space weather data!

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Large coronal hole faces Earth

Tuesday, 14 June 2016 - 08:49 UTC

Large coronal hole faces Earth

It's summer in the northern hemisphere and that means our space weather team shifted to a lower gear. We might not put out as much news as you are used to from us but we will try to keep you up to date as much as possible if there are any major events.

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Spotless sun, G2 watch active

Saturday, 4 June 2016 - 15:15 UTC

Spotless sun, G2 watch active

Our sun is spotless today. The NOAA SWPC reports that there are no numbered sunspot regions on the earth-facing side of the solar disk and that means our sun is devoid of sunspots for the first time since 18 July 2014. As a result, solar activity is at very low levels and the last registered solar flare took place three days ago!

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Two small coronal holes faces Earth

Tuesday, 24 May 2016 - 18:10 UTC

Two small coronal holes faces Earth

Solar activity remains at low levels as we only have one numbered sunspot region on the Earth-facing solar disk. Most of the geomagnetic activity at Earth thus has to come from coronal holes and today we have yet another coronal hole facing our planet.

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Coronal hole faces Earth

Tuesday, 17 May 2016 - 18:09 UTC

Coronal hole faces Earth

NOAA's G1 watch never really got off the ground yesterday but another minor G1 geomagnetic storm watch has been issued for Friday, 20 May as another much larger part of the same coronal hole face Earth.

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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 15% 1%
Predicted Kp max 4
Solar activity
M-class solar flare 1%
X-class solar flare 1%

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Space weather facts

Last X-flare:2015/05/05X2.7
Last M-flare:2016/07/24M1.9
Last geomagnetic storm:2016/07/24Kp5 (G1)
Number of spotless days in 201618
Current stretch spotless days:3

This day in history*

Solar flares
12005M3.7
21999M3.0
32012M2.7
42000M2.4
52004M1.5
ApG
12004186G4
2200322G1
3201019
4200217
5200514G1
*since 1994