"Geometry" (? !) in Solar Coronal Holes?

[Bob]

Update 25 October - the geomagnetic storm level has increased to a strong G3, with potential to go into G4.

The Kp (stability/instability) total magnetic field index has increased to a level 7, which is considered a strong storm (Kp 9 is considered the historical max level)..

Historically with high levels of solar energy activity, and large swings of the geomagnetic field, volcanic activity and earthquake activity has been noted to rise.

Solar wind
speed: 727.7 km/sec
density: 6.8 protons/cm3

Planetary K-index
Now: Kp= 7 strong
24-hr max: Kp= 7 strong

Auroral geometry in Fairbanks, AK

Kp Explanation

The Kp-index is the global geomagnetic storm index and is based on 3 hour measurements of the K-indices, for a given value, for each of the past days.

The K-index itself is a three hour long quasi-logarithmic local index of the geomagnetic activity, relative to a calm day curve for the given location.

The Kp-index measures the deviation of the most disturbed horizontal component of the magnetic field on fixed stations worldwide with their own local K-index.

The global Kp-index is then determined with an algorithm that puts the averages of every station together. The result is the global Kp-index.

The Kp-index ranges from 0 to 9 where a value of 0 means that there is very little geomagnetic activity and a value of 9 means extreme geomagnetic storming.

current Kp - Updated: Today at 1806 UT

speed: 717.3 km/sec
density: 9.7 protons/cm3

[Bob]

Owie..

expected to hit 22-23rd this month.. a day or two away..

currently:

Solar wind
speed: 330.4 km/sec
density: 10.1 protons/cm3

particle stream is dense.