Watching for CME

In about 24 hours, Earth may take a G4 solar impact due to the convergence of several CMEs known as a cannibal CME. We won’t know until it hits –Scott Compton
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A promising outlook is unfolding with the HUXt forecast indicating a potential double impact scenario, poised to bring significant effects at approximately 5 hours and 9 hours UTC on June 5th, within an arrival window stretching from late June 4th to early June 6th. Arrival speeds are anticipated to fall within the 700-800 km/s range, backed by hit probabilities of 80% and 47%, respectively, suggesting a reasonably favorable prospect for impactful events. –Cengiz Avci
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Since we’re expecting a negative polarity coronal hole stream, plus 2 fast moving cannibal CMEs, this will likely cause the hp30 to hit 7-8 over the next couple of days….

If you’ve noticed headaches correlating with geomagnetic storm activity, you’re not imagining it — the mechanism is worth understanding.
The autonomic nervous system regulates vascular tone continuously, constricting and dilating blood vessels in response to signals from the nervous system. Geomagnetic storms disrupt autonomic signaling, and the cerebral vasculature is particularly sensitive to that disruption.

Depending on which direction the dysregulation goes, you get either a constriction-dominant headache — similar in character to a migraine, often one-sided, light sensitive — or a dilation-dominant one, felt as pressure, throbbing, or pain behind the eyes or across the forehead.

There’s a second mechanism layered on top of this: geomagnetic storms increase red blood cell aggregation, which raises vascular resistance independently of the first mechanism I described. This can produce a headache even in people whose autonomic system is relatively intact.

For people with compromised vagal tone — post-COVID, chronic illness, head trauma history, or significant toxic load — the autonomic buffering that would normally absorb these fluctuations is reduced. The vascular response to a given storm becomes more pronounced, and headaches appear at lower storm intensities than they would in a healthier system.
If geomagnetic headaches are a recurring pattern for you, that’s pointing directly at autonomic and vascular stability as a layer that needs support. — Samantha Vilppu