QST de W1AW
Propagation Forecast Bulletin 19 ARLP019
From Tad Cook, KT7H
Seattle, WA May 10, 1996
To all radio amateurs
SB PROP ARL ARLP019
ARLP019 Propagation de KT7H
Average solar flux was up just a few points last week, and the average A index remained about the same, moving from 5.7 the previous week to 6.1.
Solar flux should peak around 80 in the next few days, with the possibility of geomagnetic upsets centered around May 11 and again to a greater degree around May 14 and 15. Solar flux should drop below 70 after May 20 and rise above 70 again after June 1. The geomagnetic field is expected to be most stable between May 21 and 27.
Best worldwide DX at this low point in the solar cycle is expected on 30 and 40 meters. Look for 20 meters and even higher bands to open up, especially on north south paths, when the solar flux is at 80 or higher.
Sunspot Numbers for May 2 through May 8 were 0, 0, 0, 12, 26, 27 and 19, with a mean of 12. 10.7 cm flux was 67.9, 68.3, 69.4, 70.8, 74.6, 74.9 and 76.1, with a mean of 71.7.