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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)

C4.0 solar flare

Our Sun surprised us today! After a period of higher solar activity we are currently in a period with fewer sunspots and strong solar flares seemed very unlikely today. However, our Sun woke up this afternoon and produced a C4.0 solar flare peaked today at 14:37 UTC. A C4 solar flare doesn't sound so spectacular but there are two reasons why this solar flare deserves your attention.

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

Norilsk, Vorkuta

The maximum X-ray flux of the past two hours is:

M1.61

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Friday, 28 March 2025

X1.1 solar flare

Monday, 24 March 2025

Coronal hole faces Earth

Saturday, 22 March 2025

Strong G3 geomagnetic storm watch for 23 March

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AR4048 25 AR4046 131 AR4043 48 Coronal holes 44 Incoming & Unnumbered Active Regions 1658

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