NOAA Issues Moderate (G2) Geomagnetic Storm Watch for September 11

Discussion in 'ARRL News Feeds' started by American Radio Relay, Sep 11, 2018.

  1. Just as Hurricane Florence approaches the US mainland and Hurricane Olivia is poised to affect Hawaii, NOAA has issued a G2 (moderate) geomagnetic storm watch for September 11. The G2 storm could exacerbate already modest propagation on HF bands as the planetary K index rises to an estimated value of 6. The G2 forecast stems from a fast-moving stream of coronal hole solar wind that’s expected t...

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