‰  NOW 18 WPM transition file follows‰

Average daily sunspot numbers over the past week were up 38.1 points
to 75, and average daily solar flux rose 30.7 points to 118.2.
Geomagnetic conditions were quiet over the week, with average
planetary A index declining from 25.1 to 11, and mid latitude A
index dropping from 17.6 to 9.1.  Predicted solar flux is 125 on
October 23 to 25, 120 on October 26 to 28, 115 on October 29 and 30,
85 on October 31 through November 1, 80 on November 2 to 6, then 85,
90, 95, 100, 105, 110, 115 and 120 on November 7 to 14, 125 on
November 15 to 17, 120 on November 18 to 20, and 115 on November 21
and 22. Flux values then drop to 80 on November 28 through December
3.  Predicted planetary A index is 5, 12, 24 and 8 on October 23 to
26, then 5, 8, 12 and 10 on October 27 to 30, 5 on October 31
through November 2, 50 on November 3, 40 on November 4, 25 on
November 5, 12 on November 6 and 7, then 20, 25, 20 and 10 on
November 8 to 11, and 8 on November 12 and 13. A index then drops to
5 on November 19 to 24, then bounces back to 50 on November 30.
Those Ap index values of 50 on November 3 and again on November 30
seem to be echoes of the October 7 and 8 period when planetary A
index was 77 and 56. The high values are each spaced one whole solar
rotation, 27 to 28 days, from each other.  F.K. Janda, OK1HH sent us
his weekly prediction for geomagnetic conditions. He believes the
geomagnetic field will be mostly quiet October 23, quiet to active
October 24, quiet to unsettled October 25, quiet on October 26,
mostly quiet October 27, quiet to active October 28, mostly quiet
October 29, and quiet to active October 30 through November 1.  Then
it is active to disturbed November 2, quiet to active November 3,
active to disturbed November 4, mostly quiet November 5 and 6, quiet
to unsettled November 7, quiet to active November 8, active to
disturbed November 9, quiet to active November 10, mostly quiet
November 11 and 12, quiet to unsettled November 13 and 14, mostly
quiet November 15, quiet to unsettled November 16, and quiet to
active November 17.  Technical Information Service web page.  A
detailed explanation of the numbers used in this bulletin is also
available on this site.  An archive of past propagation bulletins is
also available.  My own archives of the NOAA/USAF daily 45 day
forecast for solar flux and planetary A index are in downloadable
spreadsheet format at //bit.ly/1VOqf9B and //bit.ly/1DcpaC5 .  Click
on Download this file to download the archive and ignore the
security warning about file format. Pop up blockers may suppress
download. Ive had better luck with Firefox than IE.  The multiple
websites mentioned in this bulletin can be found in teleprinter,
packet and Internet versions of 2015 Propagation Forecast Bulletin
ARLP043.  Sunspot numbers were 49, 68, 83, 81, 94, 77, and 73, with
a mean of 75. 10.7 cm flux was 106.8, 109.1, 116.6, 119.5, 123.7,
122.8, and 129, with a mean of 118.2. Estimated planetary A indices
were 10, 8, 11, 22, 5, 9, and 12, with a mean of 11. Estimated mid
latitude A indices were 9, 8, 9, 15, 3, 8, and 12, with a mean of
9.1.

‰  END OF 18 WPM transition file ƒ