ZCZC AP64
QST de W1AW
Propagation Forecast Bulletin 44 ARLP044
From Tad Cook, KT7H
Seattle, WA October 25, 1996
To all radio amateurs
SB PROP ARL ARLP044
ARLP044 Propagation de KT7H
Solar activity was still low last week, but there was more geomagnetic activity. Conditions were disturbed over the past few days, and the average A index was about double this week when compared to the week previous.
Disturbed conditions are expected to fade through this contest weekend, and then become upset again around November 9 and again around November 15. Solar flux is expected to stay about the same.
Last week an error was reported here when the times listed for updates of the K indices on WWV was on the hour every three hours. Actually it is broadcast at 18 minutes after every hour on WWV and 45 minutes after on WWVH, so new K indices will appear at 0018, 0318, 0618, 0918, etc.
Sunspot Numbers for October 17 through 23 were 0, 0, 0, 0, 11, 0 and 0, with a mean of 1.6. 10.7 cm flux was 68.5, 69.6, 71, 71.3, 69.7, 69.8 and 67.8, with a mean of 69.7. Planetary A indices for the same period were 6, 21, 31, 15, 7, 28, and 35, with a mean of 20.4.