Archive for GEOMAGNETIC STORM WATCH (G2-CLASS) august 4th 2017

NOAA forecasters say there is an 80% (not a typo!) chance of polar geomagnetic storms on Aug. 4th 2017

Posted in 2017, astronomy, Galaxy with tags , on August 3, 2017 by theboldcorsicanflame

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GEOMAGNETIC STORM WATCH (G2-CLASS)

NOAA forecasters say there is an 80% (not a typo!) chance of polar geomagnetic storms on Aug. 4th when a solar wind stream is expected to envelop Earth’s magnetic field. The wind is flowing from a canyon-shaped hole in the sun’s atmosphere, shown here in an extreme ultraviolet image from NASA’s Solar Dynamics Observatory

This is a coronal hole (CH), a region where the sun’s magnetic field peels back and allows gaseous material to escape. The resulting solar wind is traveling toward us faster than ~600 km/s. Geomagnetic storm levels could reach G2-category (moderately strong) during the late hours of Aug. 4th, subsiding to G1-category (minor) on Aug. 5th. High-latitude sky watchers should be alert for auroras mixed with waxing gibbous moonlight. Free: Aurora Alerts

http://spaceweather.com/

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