SB PROP @ ARL $ARLP013
ARLP013 Propagation de K7RA

ZCZC AP13
QST de W1AW 
Propagation Forecast Bulletin 13 ARLP013
From Tad Cook, K7RA
Seattle, WA March 29, 2024
To all radio amateurs 

SB PROP ARL ARLP013
ARLP013 Propagation de K7RA

A dramatic increase in solar activity emerged over the past week,
and geomagnetic activity reacted as well.

Two new sunspot groups appeared on March 21, then one new group
emerged each day over March 22-25.

Average daily solar flux rose from 153.3 to 191.9, and average daily
sunspot numbers increased from 94.3 to 147.

The highest sunspot number over last week was 171 on March 22, which
was the highest sunspot number since November 22-25, 2023 when the
numbers were 174, 176, 184, and 179.

Average daily planetary A index jumped from 5.9 to 25.4, and middle
latitude numbers from 5 to 1
		
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