SB PROP @ ARL $ARLP031
ARLP031 Propagation de K7RA
ZCZC AP31
QST de W1AW
Propagation Forecast Bulletin 31 ARLP031
From Tad Cook, K7RA
Seattle, WA August 5, 2022
To all radio amateurs
SB PROP ARL ARLP031
ARLP031 Propagation de K7RA
Solar activity continued to decline this week, with average daily
sunspot number dropping from 91.1 to 36.6 and average solar flux at
95.7, down from 107.6 the week prior.
Thursday's sunspot number was above the average for the previous
seven days at 52. Solar flux on Thursday was above the previous
seven day average at 108.8. The 2300 UTC flux was 111.3.
We've not seen lower values since mid-April in bulletin ARLP015 with
average sunspot number at 34.4, and the end of February in ARLP008
with average solar flux at 95.4.
To track solar cycle 25 progress, I like to compare cur
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