S4 Radiation Storm in Progress
Protons crossed the S4 level and still climbing. Don't fly near the poles.
https://www.swpc.noaa.gov/communities/space-weather-enthusiasts-dashboard
https://solarham.com/
The X2 flare yesterday was more productive than its very impressive full halo eruption even suggested. We'll see where it ends up.
NOAA SWPC predicting G4 Level 8 geomagnetic storms early on the 20th.
Our magnetic shields are very weak and weakening, so aurora could very likely be visible in lower latitudes when the main bulk arrives. Coronagraphs are already getting snowed out from energetic protons.