SB PROP @ ARL $ARLP021
ARLP021 Propagation de K7RA

ZCZC AP21
QST de W1AW 
Propagation Forecast Bulletin 21 ARLP021
From Tad Cook, K7RA
Seattle, WA May 26, 2023
To all radio amateurs 

SB PROP ARL ARLP021
ARLP021 Propagation de K7RA

Both average daily sunspot numbers and solar flux increased this
week. Average daily sunspot numbers rose from 118.6 to 133.4, while
average solar flux went from 143.2 to 161.2.

Geomagnetic indicators were more active. Average daily planetary A
index went from 9.6 to 17.1, while average middle latitude A index
rose from 9.6 to 14.4.

Predicted solar flux is 150 on May 26, 155 on May 27 and 28, then
150, 145, 140 and 135 on May 29 through June 1, 155 on June 2 to 4,
then 160, 165, 160, 155, and 150 on June 5 to 9, 145 on June 10 and
11, 150 on June 12, 155 on June 13 and 14, 160 on June 1
		
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