SB PROP @ ARRL $ARLP050
ARLP050 Propagation DE KT7H
QST DE W1AW
Propagation Forecast Bulletin 50  ARLP050
From Tad Cook, KT7H
Seattle, WA  December 17, 1993
To All Radio Amateurs

Average solar flux was down this past week by about 13 points
compared to the previous period.  Geomagnetic conditions were stable
until the 16th, when K indices reached four.  Conditions are
expected to remain unstable for a day or so.

This week solar flux should slowly start rising toward a peak near
105 around January 6.  There is a chance of some disturbed
conditions around December 28.

Sunspot Numbers from December 9 through 15 were 79, 60, 59, 33, 22,
36 and 23, with a mean of 44.6.  10.7 cm flux was 98.4, 96.1, 92.5,
90.9, 87.8, 87.9 and 85.4, with a mean of 91.3.

The path projection for this week is from Las Vegas, Nevada to
Chile.

80 meters looks good from 0030z to 1030z, with the best conditions
from 0300z to 0900z.  40 meters looks good from 0000z to 1130z, with
best signals from 0130z to 0930z.  30 meters should be good from
2330z to 1200z, with best conditions from 0100z to 1000z.  20 meters
looks good from 2030z to 0130z.  On a few days 20 could be open as
early as 1300z and as late as 1100z, or nearly around the clock.
17 meters looks promising from 1500z to 0030z, and 15 meters from
1530z to 0000z.  10 and 12 meters look good from 1700z to 2330z,
with openings as early as 1500z and as late as 0100z on some days.
/EX