SB PROP @ ARL $ARLP053
ARLP053 Propagation de KT7H
 
ZCZC AP67
QST de W1AW  
Propagation Forecast Bulletin 53  ARLP053
From Tad Cook, KT7H
Seattle, WA  December 23, 1994
To all radio amateurs 
 
SB PROP ARL ARLP053
ARLP053 Propagation de KT7H
 
Solar flux has been drifting down toward 80 over the past week, but
geomagnetic indices are lower also.  So while the Maximum Usable
Frequency (MUF) is lower than it would be with higher solar flux,
radio communication has been somewhat more reliable due to the
stable A and K index.
 
Geomagnetic indices should be less stable over the next few days due
to a recurrent coronal hole.  Unstable conditions should be centered
around December 24 and again on December 29.
 
Solar flux should continue it's downward drift into the lower
seventies by the end of the month, and then rise above 80 during the
first week of the new year.  It should peak near 90 around January
8, and then head back to 80 by the middle of the month.
 
Sunspot Numbers for December 15 through 21 were 43, 36, 50, 60, 40,
28 and 20, with a mean of 39.6.  10.7 cm flux was 93.2, 93.1, 91.8,
87.3, 85.1, 82.4 and 82.3, with a mean of 87.9.
 
The path projection for this week is from Alabama, Ohio and Southern
California to Kerguelen Island.
 
For Alabama, 80 meters does not look good, but there is a possible
opening on 40 meters around 2300 to 0000z.  30 meters looks good
from 2230 to 0030, and 20 meters around 2100 to 2300.  The bands
above 20 meters do not look good at this time.
 
From Southern California, 20 meters has a possible opening around
1430 to 1530z.  No other band looks promising.
 
From Ohio, 80 meters may open around 2300z, and 40 meters looks good
from 2200 to 0000.  30 meters looks good from 2100 to 2230, and
20 meters from 1900 to 2100.  The bands above 20 meters do not
look good.  
NNNN
/EX