SB PROP @ ARL $ARLP025
ARLP025 Propagation de K7RA

ZCZC AP25
QST de W1AW 
Propagation Forecast Bulletin 25 ARLP025
From Tad Cook, K7RA
Seattle, WA June 23, 2023
To all radio amateurs 

SB PROP ARL ARLP025
ARLP025 Propagation de K7RA

Sunspot numbers and solar flux rose this week. There were two new
sunspot groups on June 15, another on June 17 and one more on June
18, three more on June 19, two more on June 20 and another on June
21.

Average daily sunspot number increased from 122 to 143, and average
daily solar flux rose from 154.8 to 165.4.

Average daily planetary A index jumped from 5.7 to 15.4, while the
middle latitude numbers increased from 6.7 to 13.1.

Predicted solar flux is 180 on June 23-24, 185 on June 25-27, 180 on
June 28, 175 on June 29 through July 1, 180 on July 2-3, 175 on July
4-5, 170 on July 6-
		
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