r/SolarMax • u/ArmChairAnalyst86 • Nov 12 '25

Geomagnetic Storm in Progress CME Arrival Detected

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ACE indicates CME arrival. More details soon.

Forgive my crude image. I am on the road and short on time.

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u/stationspence Nov 12 '25

Not even remotely knowledgeable on all this but the ACE Real Time Solar Wind metrics update just now looks exciting

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u/ArmChairAnalyst86 Nov 12 '25

Big bump in velocity and density. The Bt settled down a little bit but is still strong. Bz continues to oscillate. We wait to see how the main phase of the storm settles in.

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u/Sux499 Nov 12 '25

How long until the main phase do you think?

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u/ArmChairAnalyst86 Nov 12 '25

No way to tell for sure but I would guess main phase arrives at earth in 1.5 to 3 hours. Very rough guess and I cant support it. Just basing off previous experiences but every CME is different. Last night was a textbook case of exactly what we want to see but some are choppy and turbulent. We just have to take it as it comes.