‰  NOW 18 WPM transition file follows‰

There havent been any sunspots since March 3, other than March 5,
when one sunspot appeared for only one day.  Also, solar flux values
have recently dipped below 70, for the first time since the other
side of this solar cycle.  Solar flux appears at 70 over the past
week, //ftp.swpc.noaa.gov/pub/indices/DSD.txt But this is an
approximation.  Resolved to 0.10, you can see that it is dipping
lower, //www.spaceweather.ca/solarflux/sx dash 5 dash flux dash
en.php You want to look at the Observed Flux column.  Average daily
sunspot number dropped from 14.1 to zero.  Average daily solar flux
went from 74.3 to 70.3.  Average daily planetary A Index quieted
from 20.9 to 8.1, while average mid latitude A index went from 15 to
6.4.  Predicted solar flux is 71 on March 17, 72 on March 18 to 20,
73 on March 21, 74 on March 22 and 23, 76 on March 24 and 25, 74 on
March 26 to 29, 72 on March 30 through April 3, and 70 on April 4 to
9.  Predicted planetary A index is 10 and 8 on March 17 and 18, 5 on
March 19 and 20, then 8, 10, 8 and 8 on March 21 to 24, 5 on March
25 to 27, then 35, 30, 20, 18, 15, 20 and 15 on March 28 through
April 3, 12 on April 4 and 5, 10 and 5 on April 6 and 7, then 8 on
April 8 to 13, 12 and 10 on April 14 and 15, 5 on April 16 and 17,
then 10, 15 and 8 on April 18 to 20, and 5 on April 21 to 23.  F. K.
Janda, OK1HH of the Czech Propagation Interest Group sent us this
geomagnetic activity forecast for the period March 17 to April 12,
2017.  Amplifications of the solar wind from coronal holes are
expected on March 18 to 22, 23 to 27, April 3 to 8, 14 to ?  There
was a 6 meter Es opening last Friday March 10.  It was open from
Florida to W1, W2, and W3 between 1600 and 1800z.  The W3DOG/b was
spotted in Florida.  The vernal equinox is very close.  The days and
weeks before and after are always a good time for HF propagation,
and it is on March 20, this coming Monday.  Also, here is a piece on
solar cycles suggesting that the next cycle may be larger than the
current solar cycle, //www.leif.org/research/Prediction dash of dash
Solar dash Cycles.pdf For more information concerning radio
propagation, see the ARRL Technical Information Service at
//arrl.org/propagation dash of dash rf dash signals.  For an
explanation of numbers used in this bulletin, see //arrl.org/the
dash sun dash the dash earth dash the dash ionosphere.  An archive
of past propagation bulletins is at //arrl.org/w1aw dash bulletins
dash archive dash propagation.  More good information and tutorials
on propagation are at //k9la.us/.  Monthly propagation charts
between four USA regions and twelve overseas locations are at
//arrl.org/propagation.  Instructions for starting or ending email
distribution of ARRL bulletins are at //arrl.org/bulletins.  Sunspot
numbers were 0, 0, 0, 0, 0, 0, and 0, with a mean of 0.  10.7 cm
flux was 71.2, 71, 70, 70.1, 70.3, 69.6, and 69.8, with a mean of
70.3.  Estimated planetary A indices were 15, 12, 6, 9, 3, 5, and 7,
with a mean of 8.1.  Estimated mid latitude A indices were 10, 14,
4, 7, 2, 3, and 5, with a mean of 6.4.

‰  END OF 18 WPM transition file ƒ