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Prolonged geomagnetic storming, isolated periods of G2 – Moderate levels

prolonged-geomagnetic-storming-isolated-periods-of-g2-moderate-levels

Earth is under the influence of a positive polarity coronal hole high speed stream (CH HSS) for several days now. Enhanced solar wind parameters are expected to continue through October 1, with G3 – Strong geomagnetic storm levels possible today.

G2 – Moderate geomagnetic storm thresholds were reached on two occasions, at 17:29 UTC on September 27 and 20:48 UTC on September 28.

Active to G1 storm levels are expected to continue, with possible isolated periods of G2 storming through September 30. There is also a slight chance for an isolated period of G3 – Strong storming today due to high solar wind speed and occasional periods of favorable IMF orientation.

Active levels, with isolated periods of G1 storming, are likely on October 1 as CH HSS effects are expected to decrease.

Since this time of year (equinox) favors auroras, many are experiencing one of the best shows of the year.

Aurora by Marketa S Murray. Photo taken on September 28, 2016 at Fairbanks – Alaska. (via Space Weather)

Aurora Australis by Varun Dongre at Maitri Research Base, Antarctica. (via Space Weather)

Aurora Australis by Varun Dongre at Maitri Research Base, Antarctica. (via Space Weather)

Featured image: AAurora Australis by Varun Dongre at Maitri Research Base, Antarctica. (via Space Weather)

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