SB PROP @ ARL $ARLP036
ARLP036 Propagation de K7RA

ZCZC AP36
QST de W1AW 
Propagation Forecast Bulletin 36 ARLP036
From Tad Cook, K7RA
Seattle, WA September 7, 2018
To all radio amateurs 

SB PROP ARL ARLP036
ARLP036 Propagation de K7RA

Sunspots disappeared again, since August 28. Average daily sunspot
number dropped from 17.7 (during the prior week) to 0, (naturally).

Average daily solar flux declined from 70.6 to 67.8. Geomagnetic
indicators quieted, with average daily planetary A index changing
from 19.9 to 6.3, and mid-latitude A index going from 13.4 to 5.9.

Predicted solar flux is 68 on September 7-14, 75 on September 15-17,
72 on September 18-22, 70 on September 23, 68 on September 24
through October 1, 70 on October 2-6, 72 on October 7, 70 on October
8-9, 75 on October 10-14, 72 on October 15-19, 70 on October 20 and
68 on October 21.

Predicted planetary A i
		
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