Tad Cook, K7RA, Seattle, reports:

No sunspots were visible over the August 8 – 14 reporting week. Spaceweather.com says 67% of days so far this year have been spotless. For all of 2018, it was 61%. At solar minimum in 2008 and 2009, spotless days ran 73% and 71%, respectively.

Solar flux has been minimal, unremarkable, and barely changed — edging up from 67.2 to 67.4. Predicted solar flux for the next 45 days is also unremarkable, at 67 for August 15 – September 28.

Predicted planetary A index is 5 on August 15; 8 on August 16; 5 on August 17 – 18; 8 on August 19; 5 on August 20 – 25; 8 on August 26 – 28; 5 on August 29 – 31; 38 and 14 on September 1 – 2; 5 on September 3 – 5; 8 on September 6 – 8; 5 on September 9 – 11; 8 on September 12; 5 on September 13 – 21; 8 on September 22 – 24; 5 on September 25 – 27, and — in a reoccurrence of geomagnetic activity reported last week and also predicted for September 1 — 38 on September 28.

In Friday’s bulletin, look for reports on recent 10-meter propagation.

Sunspot numbers for August 8 – 14 were 0, 0, 0, 0, 0, 0, and 0, with a mean of 0. The 10.7 centimeter flux was 68.6, 67.2, 67.2, 67.6, 67.2, 66.8, and 67.4, with a mean of 67.4. Estimated planetary A indices were 7, 6, 8, 6, 5, 7, and 5 with a mean of 6.3. The middle latitude A index was 6, 7, 8, 7, 7, 8, and 5, with a mean of 6.9.

ARRL News Letter on August 15, 2019