Propagation Update – January 19, 2018

Propagation Forecast Bulletin 3 ¬†ARLP003 From Tad Cook, K7RA Seattle, WA ¬†January 19, 2018 To all radio amateurs It was a quiet week in space weather (January 11-17) with 0 sunspots over the weekend and geomagnetic indicators rising only slightly. Compared to last week, average daily sunspot numbers declined from 11.9 to 7, but average daily solar flux went from 69.9 to 70.7. Seems counter-intuitive that sunspot and solar flux would move in opposite directions, but these are all very low numbers anyway, and any change is slight. Also, there…

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