Propagation and Space Weather….

SFI = 108

A index = 3

K index = 1

SSN = 46

A STRANGELY-MAGNETIZED SUNSPOT: A new sunspot (provisionally numbered AR3088) is emerging in the sun’s southern hemisphere. Its magnetic field is not normal:

The sunspot, which didn’t even exist yesterday, is inset in this Solar Dynamics Observatory map of magnetic fields on the sun. According to Hale’s Law, the sunspot’s magnetic poles should be arranged +/-, that is, positive (+) on the left and negative (-) on the right. Instead, they are rotated 90 degrees; positive (+) is on top and negative (-) is on the bottom.

This is a rare “perpendicular sunspot,” with magnetic poles orthogonal to the sun’s equator. What’s going on? Something unusual may be happening to the sun’s magnetic dynamo beneath the surface where this sunspot is growing. We’ll keep an eye on AR3088 to see what happens next.

AR3088 is a “perpendicular sunspot.” It’s magnetic
field is rotated 90 degrees compared o other sunspots.
Credit: SDO/HMI

NOAA Alerts

Space Weather Message Code: ALTEF3
Serial Number: 3232
Issue Time: 2022 Aug 25 0459 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3231
Begin Time: 2022 Aug 19 1300 UTC
Yesterday Maximum 2MeV Flux: 2735 pfu

NOAA Space Weather Scale descriptions can be found at

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.