SB PROP @ ARL $ARLP024
ARLP024 Propagation de K7RA

ZCZC AP24
QST de W1AW 
Propagation Forecast Bulletin 24 ARLP024
From Tad Cook, K7RA
Seattle, WA June 16, 2023
To all radio amateurs 

SB PROP ARL ARLP024
ARLP024 Propagation de K7RA

At 2256 UTC on June 16 the Australian Space Weather Forecast Centre
issued a geomagnetic warning: "The solar wind speed on UT day 15-Jun
has increased as the Earth entered a coronal hole wind stream after
15/0545UT. Increased geomagnetic activity is expected for 16-Jun
with isolated periods of G1-Minor level activity."

Earlier in the day I checked the NOAA planetary K index page, and it
showed a jump from K index of about 1.8 at 1200 UTC to about 4.1 at
1500 and again at 1800 UTC, then about 4.5 at 2100 UTC and 5.5 at
0000 UTC on June 16. At 0300 UTC it was down a bit to 5.

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