SB PROP @ ARL $ARLP018
ARLP018 Propagation de K7RA
ZCZC AP18
QST de W1AW
Propagation Forecast Bulletin 18 ARLP018
From Tad Cook, K7RA
Seattle, WA May 5, 2023
To all radio amateurs
SB PROP ARL ARLP018
ARLP018 Propagation de K7RA
Spaceweather.com posted the following report on May 4:
"REVERSED-POLARITY SUNSPOT EXPLODES: A rare reversed-polarity
sunspot exploded today, producing a long-lasting M-class solar flare
and a CME that might hit Earth. Geomagnetic storms are possible this
weekend if/when the CME arrives."
Sunspot activity and solar flux increased over the past reporting
week, April 27 through May 3.
Average daily sunspot numbers climbed from 91.4 to 114, while
average daily solar flux grew from 139.4 to 151.5.
Average daily planetary A index dropped from 26.9 to 13.6, and
average daily middle
...
Читать дальше »