SB PROP @ ARL $ARLP029
ARLP029 Propagation de K7RA

ZCZC AP29
QST de W1AW 
Propagation Forecast Bulletin 29 ARLP029
From Tad Cook, K7RA
Seattle, WA July 22, 2022
To all radio amateurs 

SB PROP ARL ARLP029
ARLP029 Propagation de K7RA

Solar activity increased over this reporting week, July 14 to 20,
with average daily sunspot number rising from 102.1 to 137.3, and
average daily solar flux from 147.4 to 157.6.

Peak sunspot number was 166 on July 17, and peak solar flux was
171.4 on July 15.

Geomagnetic activity peaked on July 19 when planetary A index was 26
and middle latitude A index at 19. Alaska's high latitude college A
index was 43, with the K index at 6, 5, 5, 6 and 5 at 0900 to 2000
UTC.

Average daily planetary A index decreased this week from 12.4 to
9.4.

A crack opened in the earth's magnetic fiel
		
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