Category Archives: Space Weather

Radio blackout: X-Ray Event exceeds X1

I’ve heard from several of you this morning that the shortwave bands are dead. It’s not your radio…it’s our sun. We’re currently experiencing an X-ray event exceeding X1 on the NOAA Space Weather Scale. This equates to wide area blackout of … Continue reading

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Geomagnetic storms in weekend forecast

Heads up! Geomagnetic storms may make it a challenge to hear the test broadcast of Hamburger Lokalradio this weekend or any shortwave broadcaster for that matter. Full details at and the ARRL (below): (Source: ARRL) reports a strong geomagnetic … Continue reading

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Telegraph operations in the Great Auroral Storm of 1859

These days, CMEs and solar flares get a great deal of media attention. But it’s mostly speculation–for even with our advanced abilities to measure the potential impact, we can’t be sure what will happen each time this occurs. Might this … Continue reading

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Listening to Coronal Mass Ejections, close to the source

Shortwave radio listeners know that coronal mass ejections (CMEs) often disturbing our SWLing. More than once I’ve been in the middle of listening to a broadcast, or even chatting with a fellow radio amateur on the HF spectrum and the … Continue reading

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Another solar storm headed to Earth

Even the Wall Street Journal picked up on the latest solar flare–the biggest in 5 years–which is headed towards Earth: WASHINGTON—The largest solar flare in five years is racing toward Earth, threatening to unleash a torrent of charged particles that … Continue reading

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NPR explains space weather and the CME heading our way

I think this is one of the best, simple explanations of space weather that I’ve seen lately: (Source: NPR) Space weather, as it is called, originates with solar magnetic activity. The sun is a giant spinning ball of charged particles. … Continue reading

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