NOAA-AS PREDICTED, A STRONG SOLAR FLARE

A CME IS COMING: Yesterday’s almost-X-class solar flare (see below) hurled a CME into space. Preliminary models suggest it will graze Earth on June 18th, bringing a chance of G1-class geomagnetic storms. Stay tuned for an updated forecast. Solar flare alerts: SMS Text

AS PREDICTED, A STRONG SOLAR FLARE: We thought Sunspot 4114 might flare, and it did. On June 15th at 1806 UTC, the growing active region erupted with an M8.3-class solar flare (almost X-class). NASA’s Solar Dynamics Observatory captured the extreme ultraviolet flash:



Radiation from the flare caused a shortwave radio blackout over North America. Ham radio operators may have noticed loss of signal at frequencies below 20 MHz.

The explosion also hurled a CME into space. Most of the CME will miss Earth, sailing north of our planet; most, but not all. The CME’s flank should strike Earth on or about June 18th, bringing a chance of geomagnetic storms. Solar flare alerts: SMS Text

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