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CME impact, another M-flare with a halo CME

vrijdag 7 november 2025 11:49 UTC

The first of what could now be four possible CME impacts (later more on that) was observed today at the Sun-Earth L1 point at around 04;50 UTC. The total interplanetary magnetic field strength increased to about 17 nT, with the solar wind speed increasing to an impressive 800km/s. The north-south direction of the IMF (Bz) has been mostly northwards but a strong G3 geomagnetic storm watch remains in effect as more CMEs could still arrive at Earth in the coming 72 hours. If this was the first of the four CMEs that might arrive, this will likely be the weakest of them all.

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G3 geomagnetic storm watch

donderdag 6 november 2025 19:52 UTC

Camera's ready? The NOAA SWPC has issued a strong G3 geomagnetic storm watch in response to the possibe arrival of up to three coronal mass ejections.

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High solar activity and a coronal hole!

woensdag 5 november 2025 16:40 UTC

Quite a lot going on at the moment! Space weather is going from 0 to 100 fast all thanks to not one but two sunspot regions which are producing signficant solar flares. We also have a coronal hole facing our planet. Let's dig deeper in this article.

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X1.8 solar flare

dinsdag 4 november 2025 18:37 UTC

There she blows! Sunspot region 4274 with it's complex Beta-Gamma-Delta magnetic layout delivers on her promise and just produced the very first X-class solar flare since June this year!

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Coronal hole faces Earth

donderdag 11 september 2025 18:13 UTC

A coronal hole is facing our planet today which is sending a high speed solar wind stream towards us which could cause enhanced geomagnetic conditions (and thus aurora!) in the days ahead.

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M2.7 solar flare with earth-directed CME!

zondag 31 augustus 2025 16:54 UTC

Great news for sky watchers around the world! We are kicking off the northern hemisphere aurora season with a possible coronal mass ejection impact later tomorrow which would be Monday, the very first day of September this year!

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M4.4 solar flare from sunspot region 4168

dinsdag 5 augustus 2025 20:48 UTC

Hello all and welcome to... August? Time flies when you are having fun and we hope all of our visitors are having an awesome summer... or winter for our friends down under! Solar activity has been pretty quiet in June and July which gave us the opportunity to recharge our batteries before the new aurora season kicks off in the northern hemisphere. Our Sun was on the same wavelength as us as there has been little activity worth mentioning on our nearest star. Did we pass solar maximum or is this the quiet before the storm? What do you think?

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The CME did not disappoint! More storming activity to come?

maandag 2 juni 2025 15:32 UTC

We remain at geomagnetic storm conditions as the effects of the coronal mass ejection from an M8 solar flare continue to influence our planet. The coronal mass ejection arrival earlier than expected, yesterday around 05:30 UTC. The north-south direction of the IMF (Bz) has been prolonged southward during the onset of the storm which resulted in G3 and G4 geomagnetic storm conditions. This triggered amazing aurora displays which were visible from southern parts of Australia, New Zealand and even places like Utah in the USA.

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M8.2 solar flare, Strong G4 geomagnetic storm watch

zaterdag 31 mei 2025 18:11 UTC

Wow! Major solar fireworks today. Charge your camera batteries and put on your finest jacket for tomorrow night as strong (G3) or perhaps even severe (G4) geomagnetic storm conditions are possible tomorrow evening (1 June) into 2 June. The center of attention today was sunspot region 4100 which produced a gorgeous long duration M8.2 solar flare today (R2-moderate) peaking at 00:05 UTC. This region is close to the center of the Earth-facing solar disk and launched a major asymmetrical full halo (as seen by SOHO/LASCO) coronal mass ejection in space with a pretty much guaranteed earth-directed component.

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Another X-flare! Potent sunspot region 4087!

woensdag 14 mei 2025 19:36 UTC

Wow! We go from a period with hardly any solar activity worth mentioning to two X-class solar flares in two days!

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