SB PROP @ ARRL $ARLP025
ARLP025 Propagation DE KT7H
QST DE W1AW
Propagation Forecast Bulletin 25  ARLP025
>From Tad Cook, KT7H
Seattle, WA  June 24, 1994
To All Radio Amateurs
 
Solar activity was down over the past week, but at least the
geomagnetic indices were lower, signalling more stable conditions.
The A index dropped into the single digits, and there were periods
toward the end of the week when the K index was one or zero.
 
Unfortunately, more upsets are predicted, and the poor conditions
could disrupt Field Day weekend.  For June 25 and 26 the solar flux
is predicted to be around 70, and the K index could go as high as
five.  Solar flux should rise again to peak near 85 around July 10.
 
The best all around DX band should be 20 meters for the near term,
considering the Summer season and the low solar flux.
 
Sunspot Numbers from June 16 through 22 were 80, 53, 49, 60, 25, 38
and 20, with a mean of 46.4.  10.7 cm flux was 87.9, 83.9, 78.4,
77.6, 76.4, 74.4 and 72.2, with a mean of 78.7.
 
There is more than one path projection for this week, and they are
domestic forecasts for Field Day weekend.
 
>From Southern California to the New England states 80 meters looks
good from 0200z to 1030z, peaking around 0430z.  40 meters looks
good from 0030z to 1230z, peaking from 0400z to 0900z.  Check 20
meters from 0000z to 0300z.  10 and 15 meters do not look promising.
 
>From Texas to Ohio 80 meters looks best from 2330z to 1230z, peaking
from 0230z to 0930z.  40 meters just might be open around the clock,
but will most probably be good from 1830z to 1200z, with the best
period from 0200z to 1000z.  20 meters does not look good, but check
from 2100z to 0000z and 0230z to 0500z.  15 and 10 meters do not
look good.
 
Finally from Oregon and Washington to Florida, 80 meters looks good
from 0230z to 1100z, peaking from 0430z to 0930z.  40 meters
looks good from 0130z to 1230z, peaking from 0400z to 1000z.
20 meters looks great from 0230z to 0430z, and may open
as early as 2000z and close as late as 1000z.
/EX