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AE5ME > PROP 13.10.15 03:43l 33 Lines 1051 Bytes #999 (0) @ USA
BID : 23759_AE5ME
Read: GUEST
Subj: ARRL Propagation Bulletin Part 1
Path: IW8PGT<CX2SA<N9PMO<NS2B<N0KFQ<AE5ME
Sent: 151013/0051Z 23759@AE5ME.#NEOK.OK.USA.NOAM BPQ1.4.63
ARLP041 Propagation de K7RA
ZCZC AP41
QST de W1AW
Propagation Forecast Bulletin 41 ARLP041
From Tad Cook, K7RA
Seattle, WA October 9, 2015
To all radio amateurs
SB PROP ARL ARLP041
ARLP041 Propagation de K7RA
Sunspot numbers and solar flux softened over the past week, with
average daily sunspot numbers declining from 120.9 to just 37, and
average daily solar flux down from 122.7 to 93.8. These numbers
compare the October 1-7 activity against the previous seven days.
Average planetary A index was way up, from 5.1 to 24.3. The
planetary A index reading of 77 on Wednesday was a big factor in the
high average. That is a huge number, indicating a strong geomagnetic
storm.
Predicted solar flux for the near term is 80 on October 9-10, 85 on
October 11, 90 on October 12, 95 on October 13-14, 100 on October
15-16, 130 on October 17-18, 125 on October 19, 120 on October
20-25, 115 on October 26, 110 on October 27 and 100 on October
28-29.
Solar flux is predicted to decline to 85 on November 1-3, then rise
to 130 on November 12-14.
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