There has been a sustained solar radio storm at 180 MHz over the past few days. It consists of Type I radio bursts and sounds like ocean surf. A profusion of emerging sunspots has kicked off a days-long radio storm on the sun. VHF receivers on Earth are picking up loud bursts that sound like waves crashing on a beach. This ongoing event continues a recent trend of increasing activity as Solar Cycle 24 heats up.
Radio emissions like these are caused by plasma instabilities in the sun’s atmosphere above sunspots. With the sun becoming ‘radio-active,’ it’s no coincidence that sunspots are emerging in abundance.
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