SB PROP @ ARL $ARLP011
ARLP011 Propagation de K7RA

ZCZC AP11
QST de W1AW 
Propagation Forecast Bulletin 11 ARLP011
From Tad Cook, K7RA
Seattle, WA March 15, 2024
To all radio amateurs 

SB PROP ARL ARLP011
ARLP011 Propagation de K7RA

Six new sunspot groups appeared over the past reporting week, March
7-13, and one more on March 14.

The first group emerged on March 7, two more appeared on March 12,
and three more on March 13.

Solar activity was down. Average daily sunspot number went from
106.7 to 82.3, and solar flux from 147.4 to 130.4. Geomagnetic
indicators were somewhat quieter, with average daily planetary A
index dropping from 10 to 8.9, and middle latitude A index from 8 to
7.

The Vernal Equinox in the Northern Hemisphere is on Wednesday, March
20 at 0306 UTC. This marks a transition to Spring HF condition
		
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