ARRL

ARRL Propagation Bulletin ARLP027 (1995)

SB PROP @ ARL $ARLP027
ARLP027 Propagation de KT7H
 
ZCZC AP95
QST de W1AW  
Propagation Forecast Bulletin 27  ARLP027
From Tad Cook, KT7H
Seattle, WA  June 23, 1995
To all radio amateurs 
 
SB PROP ARL ARLP027
ARLP027 Propagation de KT7H
 
Solar activity has been down over the past week.  On June 15 and 16
there were no visible sunspots at all on the solar surface facing
Earth.  Some unstable conditions were centered around June 19, but
this is improving.  Look for another disturbance around June 27, and
another possibly around mid July.
 
Expect very low solar activity, but with a moderately rising solar
flux for the near term.  Flux value should peak near 90 around July
4 through 6.
 
Sunspot Numbers for June 8 through 14 were 49, 41, 67, 32, 28, 25
and 14, with a mean of 36.6.  10.7 cm flux was 84.2, 86.4, 84.4,
82.5, 80.7, 76.8 and 75.7, with a mean of 81.5.
 
Sunspot Numbers for June 15 through 21 were 0, 0, 11, 24, 28, 20 and
25, with a mean of 15.4.  10.7 cm flux was 73.3, 70.8, 69.9, 69.5,
71.3, 72 and 72.3, with a mean of 71.3.
 
Path projections for this week are from Seattle, WA and Dallas, TX
to Tuvalu, T2.
 
From Seattle, 80 meters looks good from 0630 to 1300z, and 40 meters
from 0530 to 1400.  Check 30 meters from 0500 to 1530 and 20 meters
from 0230 to 1130 and 1300 to 1500.  The best period on 20 meters is
from 0600 to 0930.  17 meters should be open on most days from 2130
to 0800, with the best possibility of a reliable opening around 0530
to 0630.  On some days 15 meters may be open around 0530 to 0630.
 
From Dallas, check 80 meters from 0600 to 1200z, 40 meters from 0530
to 1230, and 30 meters from 0430 to 1330.  20 meters looks good from
0230 to 0900 and 1130 to 1400.  17 meters looks best from 2330 to
0630, and 15 meters from 0330 to 0500.
NNNN
/EX