SB PROP @ ARL $ARLP017
ARLP017 Propagation de K7RA
ZCZC AP17
QST de W1AW
Propagation Forecast Bulletin 17 ARLP017
From Tad Cook, K7RA
Seattle, WA April 23, 2021
To all radio amateurs
SB PROP ARL ARLP017
ARLP017 Propagation de K7RA
Four new sunspots emerged this week, and were visible every day.
And in this week's bulletin a large amount of useful material from
W3LPL.
Spaceweather.com issued a warning on April 22: "A CME is heading for
Earth and it could spark a geomagnetic storm when it arrives on
April 25th. NOAA forecasters say moderately strong G2-class storms
are possible, which means auroras could dip into northern-tier US
states from Maine to Washington."
Average daily sunspot number surged from 7 to 35.1, while average
daily solar flux increased from 75 to 78.
Due to seemingly constant so
...
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