[KCDXC] Fw: ARLP022 Propagation de K7VVV

[Steve Lufcy]

> Sent: Friday, May 31, 2002 07:47
> Subject: ARLP022 Propagation de K7VVV
> 
> 
> > SB PROP @ ARL $ARLP022
> > ARLP022 Propagation de K7VVV
> > 
> > ZCZC AP22
> > QST de W1AW  
> > Propagation Forecast Bulletin 22  ARLP022
> > From Tad Cook, K7VVV
> > Seattle, WA  May 31, 2002
> > To all radio amateurs 
> > 
> > SB PROP ARL ARLP022
> > ARLP022 Propagation de K7VVV
> > 
> > Average daily solar flux and sunspot numbers rose this week.
> > Compared to last week (the reporting week for this bulletin is
> > Thursday through Wednesday) average daily sunspot numbers were up
> > nearly 65 points and daily solar flux was up by 15. There were some
> > very active geomagnetic days. Monday, May 27 was quite active with
> > the planetary A index at 28, and Thursday, May 23 was very stormy
> > with an A index of 54. Thursday's problems were probably from
> > several coronal mass ejections the day before.
> > 
> > Solar flux is expected to fade a bit this week, and may reach a
> > short-term minimum around Monday or Tuesday.
> > 
> > There is a new large sunspot on the southeast limb of the sun.
> > Region 9973 could bring solar flares.
> > 
> > We're moving out of spring propagation and toward summer conditions.
> > 10-meters is going out of season, and moving into summer will see
> > lower MUF, affecting propagation on 15-meters. 17 and 20-meters will
> > be the best summertime bands for HF DX, with 20-meters offering the
> > best conditions right after sunrise or into the evening, rather than
> > mid day.
> > 
> > Sunspot numbers for May 23 through 29 were 229, 242, 221, 232, 227,
> > 218, and 206, with a mean of 225. 10.7 cm flux was 180.3, 189.1,
> > 182.6, 183.1, 186.7, 186.4, and 184.8, with a mean of 184.7.
> > Estimated planetary A indices were 54, 7, 6, 10, 28, 12, and 12,
> > with a mean of 18.4.
> > NNNN
> > /EX
> 
>