SB PROP @ ARL $ARLP009
ARLP009 Propagation de K7RA

ZCZC AP09
QST de W1AW 
Propagation Forecast Bulletin 9 ARLP009
From Tad Cook, K7RA
Seattle, WA March 3, 2023
To all radio amateurs 

SB PROP ARL ARLP009
ARLP009 Propagation de K7RA

This was a busy week for geomagnetic storms. A solar wind stream
from an equatorial hole and a CME blew geomagnetic numbers seemingly
off the scale, with the planetary A index on Monday hitting 94.
Aurora was visible as far south as 40 degrees latitude. Imagine a
line running from Reno, Nevada through Provo, Utah then Denver, then
the Kansas-Nebraska state line, Quincy, Illinois, Dayton, Ohio and
Philadelphia.

This week the source of the 10.7 cm solar flux, the DRAO observatory
at Penticton, British Columbia, was again saturated by solar wind on
February 25 and the measurement was 279.3.
		
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