This type of solar flare can impact radio communications, electric power grids ... and Atmospheric Administration (NOAA)’s ...

"Some of the extreme ultraviolet light above active regions flickers erratically for a few hours before a solar flare," ...

Space Weather Scale, which rates how the solar flare will contribute to radio blackouts and what impacts could be associated with it. The scale ranges from R1 to R5, meaning this blackout event ...