The K7RA Solar Update

Discussion in 'ARRL News Feeds' started by American Radio Relay, May 10, 2019.

  1. We saw zero sunspots from April 21 through May 2, but on May 3 sunspots returned. Average daily sunspot number rose from zero last week to 16.1 this week, and average daily solar flux increased as well, from 67.5 to 73.5.

    Both the average middle latitude and planetary A index this week were 6.6, and last week those numbers were 4.7 and 5.9 respectively.

    Predicted solar flux is 75 on May 10-11, 73...

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