SB PROP @ ARL $ARLP017 ARLP017 Propagation de KT7H ZCZC AP85 QST de W1AW Propagation Forecast Bulletin 17 ARLP017 >From Tad Cook, KT7H Seattle, WA April 15, 1995 To all radio amateurs SB PROP ARL ARLP017 ARLP017 Propagation de KT7H The average solar flux was about the same last week as the week previous, but for several days there were no visible sunspots. From April 5 through 9 the sunspot count was zero. Over time we should see more periods like this, as the current solar cycle enters what probably is its final year. Currently the A and K indices are quite low, indicating stable conditions. This should continue for another week, when a recurring coronal hole appears around April 21 through 24. The worst conditions are predicted for April 22, with a possible A index around 25. Another possible troubled period is centered around May 4. Solar flux should is rising slightly and should stay around the mid eighties through April 26, then dip slightly, and rise to around eighty after May 1. Sunspot Numbers for April 6 through 12 were 0, 0, 0, 0, 12, 18 and 32, with a mean of 8.9. 10.7 cm flux was 71.8, 70.6, 71.8, 73, 74.5, 78 and 81.9, with a mean of 74.5. The path projection for this week is from the center of the continental United States and from the West Coast to Scarborough Reef, BS7H. >From the center of the United States, 80 meters may be open briefly from q190z to 1130z, and 40 meters from 1030z to 1230z. Check 30 meters from 1130z to 1330z, and 20 meters from 1330z to 1600z. >From the West Coast of the United states check 80 meters from 1030z to 1330z, 40 meters from 1000z to 1430z, and 30 meters from 0830z to 1000z and again from 1330z to 1600z. 20 meters should be open from 0600z to 0830z and 1500z to 1600z. NNNN /EX