Solar activity rose over the past week, with average daily sunspot numbers
rising from 3.4 to 29.7 and solar flux from 71.2 to 77.9.
Average daily
planetary A index increased from 10 to 18.3, and average mid-latitude A index
went from 7.1 to 13.6.
Predicted solar flux is 86, 87 and 88 on March 31
till April 2, then 86, 84, 83 and 82 on April 3-6, 71 on April 7-14, 73 on April
15-17, 75 on April 18-22, 78 on April 23-26, 75 on April 27-29, 73 on April 30
to May 1 and 71 on May 2-11.
Predicted planetary A index is 20 on March
31 through April 2, 15 on April 3-4, 12 on April 5-6, 5 on April 7-16, then 24,
25 and 10 on April 17-19, 5 on April 20-22, then 25, 40, 35, 20, 18 and 12 on
April 23-28, and 8, 16, 12, 15 and 12 on April 29 through May 3, followed by 5
on May 4-13 and 24 on May 14.
F.K. Janda, OK1HH sent us his geomagnetic
activity forecast for the period March 31-April 25, 2017.
“Geomagnetic
field will be:
quiet on April 9-10, 14-16, 20-22
mostly quiet on April 6,
8, 11
quiet to unsettled April 4, 12-13, 19
quiet to active on April 3, 5,
7, 23, 25
active to disturbed on March 31, April 1-2, 17-18,
24
Amplifications of the solar wind from coronal holes are expected on
March 31, April 1-4, (5-8,) 12-13. (14,) 16-20, 25
Remark:
-
Parenthesis means lower probability of activity enhancement and/or lower
reliability of prediction.”
