The Proton Flux after the latest X-Flare has jumped to a very high level (the last time this happened the media was all over it). The amount of static you see on the SOHO picture shows a lot of interference.
Currently it is at the R4 (Severe) level –
R 4- Severe
HF Radio: : HF radio communication blackout on most of the sunlit side of Earth for one to two hours. HF radio contact lost during this time.
Navigation: Outages of low-frequency navigation signals cause increased error in positioning for one to two hours. Minor disruptions of satellite navigation possible on the sunlit side of Earth.