SB PROP @ ARL $ARLP034
ARLP034 Propagation de K7RA

ZCZC AP34
QST de W1AW 
Propagation Forecast Bulletin 34 ARLP034
From Tad Cook, K7RA
Seattle, WA August 20, 2021
To all radio amateurs 

SB PROP ARL ARLP034
ARLP034 Propagation de K7RA

Weak solar activity persists, but with just one spotless day in the
current reporting week, August 12 to 18, on Friday, August 13. Last
week we reported four days with no sunspots in the previous seven
days.

Average daily sunspot number increased from 9.9 last week to 17.7
during this week.

Solar flux was the same, with the average inching from 73.7 to 73.8.

Geomagnetic indicators were also stable. Average planetary A index
was 6.1, compared to 6.3 last week. Average middle latitude A index
moved from 7.6 to 7.

Predicted solar flux is 75 on August 20, 73 on August 21 to 23, 72
on A
		
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