SB PROP @ ARL $ARLP020
ARLP020 Propagation de K7RA

ZCZC AP20
QST de W1AW 
Propagation Forecast Bulletin 20 ARLP020
From Tad Cook, K7RA
Seattle, WA May 16, 2020
To all radio amateurs 

SB PROP ARL ARLP020
ARLP020 Propagation de K7RA

No sunspots appeared last week. The previous seven days had only one
big sunspot group on one day, with a sunspot number of 35. Over the
seven day period this averaged out to a sunspot number of 5, so
average daily sunspot numbers declined from 5 to 0 this week.

Average daily solar flux also declined, by one point from 69.5 to
68.5.

Geomagnetic indicators were quiet, with average daily planetary A
index declining from 5.1 to 4.1, and mid-latitude A index from 5 to
4.7.

Spaceweather.com reports that the percentage of days with no
sunspots so far in 2020 (76%) is very close to 2019 (77%)
		
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