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Bulletin on solar and geomagnetic activity Solar activity report Geophysical report Sunspot regions Coronal holes Kp values Solar flares Radiation storms Solar wind (Speed, Density), Interplanetary Magnetic Field (IMF) (Bt, Bz)

Coronal hole faces Earth

Northern hemisphere sky watchers are having a cracking start to their aurora season. The past few months, we have had major solar flares, coronal mass ejection impacts and in general fairly high geomagnetic activity. Welcome solar maximum! So many people have already spotted aurora from their locations even those who do not live close to the arctic circle. Really amazing to see... and today we have more good news for you as we have a coronal hole facing our planet today which is sending a high speed solar wind stream towards our planet.

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G1 - Minor geomagnetic storm

Observed Kp: 5
Threshold reached: 21:40 UTC

Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future

Oulu, Rovaniemi
Luleå

The density of the solar wind is moderate (25.86 p/cm³)

The strength of the interplanetary magnetic field is moderate (11.73nT), the direction is North (5.92nT).

The Disturbance Storm Time index predicts strong storm conditions right now (-132nT)

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Tuesday, 15 April 2025

CME arrival, G3 storm watch

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X1.1 solar flare

Monday, 24 March 2025

Coronal hole faces Earth

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Incoming & Unnumbered Active Regions 1741 2025/04/12-13 Filament CMEs 2025/04/16 G3 Watch 446 AR4062 33 AR4064 8 AR 4060 31

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