The enhanced ionization produced by incoming energetic protons increases the absorption levels in the lower ionosphere and can have the effect of completely blocking all ionospheric radio communications through the polar regions. Such events are known as Polar Cap Absorption events (or PCAs).

Nasa seems to follow the protons for a couple of days now.

Anyway check the 2 hours data here (KEV station is the northest so it is the most affected)
[link to www.ava.fmi.fi]