ARRL

ARRL Propagation Bulletin ARLP019 (1996)

SB PROP @ ARL $ARLP019
ARLP019 Propagation de KT7H

ZCZC AP40
QST de W1AW
Propagation Forecast Bulletin 19  ARLP019
From Tad Cook, KT7H
Seattle, WA  May 10, 1996
To all radio amateurs

SB PROP ARL ARLP019
ARLP019 Propagation de KT7H

Average solar flux was up just a few points last week, and the
average A index remained about the same, moving from 5.7 the
previous week to 6.1.

Solar flux should peak around 80 in the next few days, with the
possibility of geomagnetic upsets centered around May 11 and again
to a greater degree around May 14 and 15.  Solar flux should drop
below 70 after May 20 and rise above 70 again after June 1.  The
geomagnetic field is expected to be most stable between May 21 and
27.

Best worldwide DX at this low point in the solar cycle is expected
on 30 and 40 meters.  Look for 20 meters and even higher bands to
open up, especially on north south paths, when the solar flux is at
80 or higher.

Sunspot Numbers for May 2 through May 8 were 0, 0, 0, 12, 26, 27 and
19, with a mean of 12.  10.7 cm flux was 67.9, 68.3, 69.4, 70.8,
74.6, 74.9 and 76.1, with a mean of 71.7.
NNNN
/EX