The K7RA Solar Update
06/23/2017 Average daily sunspot numbers rose this reporting week (June 15-21) from 4.9 to 29.4. The previous week had four days with no sunspots, and this week there were no zero sunspot days, hence the…
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The K7RA Solar Update
06/16/2017 At 2311 UTC on June 14 the Australian Space Weather Forecast Centre issued a geomagnetic disturbance warning: “In the second half of the first UT day (15 June) the solar wind is expected to…
ARLP022 Propagation de K7RA
SB PROP @ ARL $ARLP022 ARLP022 Propagation de K7RA ZCZC AP22 QST de W1AW Propagation Forecast Bulletin 22 ARLP022 From Tad Cook, K7RA Seattle, WA June 2, 2017 To all radio amateurs SB PROP ARL…
Our Sun’s 11-Year Magnetic Cycle Destined to Disappear
06/01/2017 The Sun’s 11-year magnetic cycle appears to be ending, but that won’t happen anytime soon. In a paper submitted on May 26 to the journal Solar Physics, two solar scientists are reinterpreting earlier evidence…
The K7RA Solar Update
06/02/2017 At 2336 UTC on June 1, the Australian Space Weather Forecast Centre issued a Geomagnetic Disturbance Warning for June 2. “The solar wind is expected to be influenced by a High-Speed Solar Wind Stream…
The K7RA Solar Update
05/26/2017 At 2344 UTC on May 23, the Australian Space Forecast Centre issued a geomagnetic disturbance warning for May 26-27. On May 26, they predict a minor to major storm warning and on May 27…
The K7RA Solar Update
05/19/2017 The Australian Space Weather Forecast Centre issued a geomagnetic warning at 0301 UTC on May 19: ”Geomagnetic conditions may rise to minor storm levels late on 19 May. Geomagnetic activity is expected to remain…