SB PROP @ ARL $ARLP002
ARLP002 Propagation de K7RA
ZCZC AP02
QST de W1AW
Propagation Forecast Bulletin 2 ARLP002
From Tad Cook, K7RA
Seattle, WA January 8, 2021
To all radio amateurs
SB PROP ARL ARLP002
ARLP002 Propagation de K7RA
Sunspots disappeared after January 2, so the average daily sunspot
number dropped from 27.1 last week to 10 for this reporting week,
December 31 through January 6.
As a result, average daily solar flux declined as well, from 86.4 to
78.6.
Geomagnetic indicators remain quiet, with planetary A index changing
from 6.9 to 5.1, and middle latitude numbers from 5 to 4.
This decline was unexpected, and of course we would rather see more
and more sunspots as Solar Cycle 25 progresses, but this is normal. We
expect much variability in any sunspot cycle.
Predicted solar flux for the next 30 d
...
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