[SFDXA] SOLAR TSUNAMI AND CME

[WILLIAM MARX]

> WEAK IMPACT: As predicted, a CME hit Earth's magnetic field on Aug. 27th (0100 UT). The impact was weak, lifting the solar wind speed by less than 50 km/s; it did not cause a geomagnetic storm. The CME was hurled in our direction by an unstable solar filament on Aug. 23rd. Aurora alerts: SMS Text. 
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> SOLAR TSUNAMI AND CME: Sunspot AR2859 erupted on Aug. 26th, producing a C3-class solar flare. The flare, however, was not the main attraction. The eruption also caused a massive "solar tsunami." Watch the shadowy wave ripple across the sun in this false-color ultraviolet movie from NASA's Solar Dynamics Observatory:
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> The expanding circular shadow is a wave of hot plasma and magnetism. Based on the time it took to reach the next sunspot, halfway around the sun, the tsunami was traveling 110,000 mph. 
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> Solar tsumanis always herald a CME, and this one was no exception. Soon after the tsunami broke, SOHO coronagraphs detected a CME: movie. The storm cloud appears to be heading for Earth. NOAA analysts are looking at the CME now, using computer models to determine its arrival time. Our guess: Aug. 30th. Stay tuned.  Aurora alerts: SMS Text.
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> Spaceweather.com
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