{"id":781425,"date":"2024-04-26T09:59:01","date_gmt":"2024-04-26T14:59:01","guid":{"rendered":"https:\/\/spaceweekly.com\/?p=781425"},"modified":"2024-04-26T09:59:01","modified_gmt":"2024-04-26T14:59:01","slug":"the-k7ra-solar-update-27","status":"publish","type":"post","link":"https:\/\/spaceweekly.com\/?p=781425","title":{"rendered":"The K7RA Solar Update"},"content":{"rendered":"<p> <br \/>\n<\/p>\n<div>\n\t\t\t\t\t<span class=\"date\">04\/26\/2024<\/span><\/p>\n<p>&#8220;ASWFC GEOMAGNETIC DISTURBANCE WARNING ISSUED AT 0733 UTC\/26 APRIL2024 BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.<\/p>\n<p>&#8220;A coronal hole wind stream has moderately enhanced the solar wind<br \/>speed and been associated with several hours\u2019 worth of southward IMF<br \/>parameter Bz. For this reason, it is possible that periods of G1-G2<br \/>geomagnetic storm conditions may be observed.<\/p>\n<p>&#8220;INCREASED GEOMAGNETIC ACTIVITY EXPECTED DUE TO CORONAL HOLE HIGH SPEED WIND STREAM FROM 26-27 APRIL 2024:<\/p>\n<p>&#8220;GEOMAGNETIC ACTIVITY FORECAST<br \/>26 Apr:\u00a0 G0, slight chance G1-G2<br \/>27 Apr:\u00a0 G0, slight chance G1<br \/>\u00a0<br \/>&#8220;Australian Space Weather Forecasting Centre.&#8221;<\/p>\n<p>After a big jump in solar activity, conditions continued to improve<br \/>in the past week.<\/p>\n<p>Twelve new sunspot groups emerged, two on April 18, three more on<br \/>April 19, five more on April 21, another on April 22 and one more on<br \/>April 24.<\/p>\n<p>Average daily sunspot number jumped from 142.7 to 265.9, and average<br \/>daily solar flux from 177.4 to 216.<\/p>\n<p>The Sun set another sunspot number record this week when the numbers<br \/>were 283, 283, 282 and 283 on April 21-24. The last time we saw a<br \/>higher daily sunspot number was 296 on April 17, 2014, 3,661 days<br \/>ago.<\/p>\n<p>April 2014 was the peak of Solar Cycle 24.<\/p>\n<p>Predicted solar flux over the next month shows values peaking at 215<br \/>from May 15-16 and again on May 19-20.<\/p>\n<p>We see solar flux at 155, 145 and 135 on April 26-28, 130 on April<br \/>29 through May 2, 160 on May 3-6, then 165, 170, 180, 185, 190, 195,<br \/>200, and 210 on May 7-14, then 215 on May 15-16, 212 on May 17-18,<br \/>215 on May 19-20, then 200 and 190 on May 21-22, 170 on May 23-24,<br \/>165, 160 and 155 on May 25-27, then 160 on May 28 through June 2.<\/p>\n<p>Predicted planetary A index is 15 on April 26-27, then 12, 10, 8 and<br \/>5 on April 28 through May 1, 10 on May 2-3, 5 on May 4, 8 on May<br \/>5-7, 5 on May 8-18, then 10, 15, 10 and 12 on May 19-22, 15 on May<br \/>23-24, 12, 8 and 7 on May 25-27, and 10 on May 28-30, 5 on May 31,<br \/>and 8 on June 1-3.<\/p>\n<p>There is no report from OK1HH this week due to problems with the<br \/>Czech Republic electric power grid.<\/p>\n<p>Steve, NN4X wrote on April 26:<\/p>\n<p>&#8220;The SFI and SSN have been very high lately, as you are more than<br \/>well aware.\u00a0 Sadly, no F2 has been noted on 6m, but on the evening<br \/>of Wednesday, 4\/24\/2024 at around 10:00 pm ET.<br \/>\u00a0<br \/>&#8220;10m: Noted BY still being received here in EL98 FT8. Also, received<br \/>multiple decodes from CS7AUT in IM67!<\/p>\n<p>&#8220;Not bad for 10:00pm!&#8221;<\/p>\n<p>In another message, on the evening of April 25 he sent a long list<br \/>of 10 and 12 meter FT8 decodes at 11:42 PM EDT.<\/p>\n<p>Signals from all over North America, plus Brazil, New Zealand,<br \/>Australia, Russia and China.<\/p>\n<p>New report from Dr. Tamitha Skov, WX6SWW:<\/p>\n<p><iframe loading=\"lazy\" title=\"Fast Solar Wind, a Mini-Solar Storm, and a Whole Lot of Flaring | Space Weather News 24 April 2024\" width=\"1110\" height=\"624\" src=\"https:\/\/www.youtube.com\/embed\/MIB_OnxhpLk?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p>From Weather.com, a cluster of sunspots:<\/p>\n<p>https:\/\/bit.ly\/3UAF9Wo<\/p>\n<p>An article from <em>The Sun<\/em> about four flares:<\/p>\n<p>https:\/\/bit.ly\/3WftxJG<\/p>\n<p>A Super Explosion about four flares:<\/p>\n<p>https:\/\/bit.ly\/3waYEeY<\/p>\n<p>Send your tips, reports, observations, questions, and comments to<br \/>k7ra@arrl.net. When reporting observations, don&#8217;t forget to tell us<br \/>which mode you were operating.<\/p>\n<p>For more information concerning shortwave radio propagation, see<br \/> and the ARRL Technical Information<br \/>Service web page at,  . For<br \/>an explanation of numbers used in this bulletin, see<br \/> .<\/p>\n<p>An archive of past propagation bulletins is at<br \/> . More good<br \/>information and tutorials on propagation are at  .<\/p>\n<p>Also, check this <em>QST <\/em>article about Solar Indices:<\/p>\n<p>https:\/\/bit.ly\/3Rc8Njt<\/p>\n<p>Instructions for starting or ending email distribution of ARRL<br \/>bulletins are at  .<\/p>\n<p>Sunspot numbers for April 18 through 24 2024 were 247, 243, 240,<br \/>283, 283, 282, and 283 with a mean of 265.9. 10.7 cm flux was 226.9,<br \/>213.4, 209.5, 217.1, 226.8, 219.1, and 199.1, with a mean of 216.<br \/>Estimated planetary A indices were 4, 41, 12, 19, 9, 8, and 4, with<br \/>a mean of 13.9. Middle latitude A index was 5, 21, 10, 14, 10, 9,<br \/>and 4, with a mean of 10.4.<br \/>NNNN<br \/>\/EX<\/p>\n<p>\u00a0<\/p>\n<\/p><\/div>\n<p><br \/>\n<br \/><a href=\"http:\/\/www.arrl.org\/news\/view\/the-k7ra-solar-update-827?rand=771671\">Source link <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>04\/26\/2024 &#8220;ASWFC GEOMAGNETIC DISTURBANCE WARNING ISSUED AT 0733 UTC\/26 APRIL2024 BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE. &#8220;A coronal hole wind stream has moderately enhanced the solar windspeed and been&hellip; <\/p>\n","protected":false},"author":1,"featured_media":771673,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-781425","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ARRL"],"_links":{"self":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/781425","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=781425"}],"version-history":[{"count":0,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/781425\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/media\/771673"}],"wp:attachment":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=781425"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=781425"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=781425"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}