{"id":4319,"date":"2022-08-14T06:50:39","date_gmt":"2022-08-14T09:50:39","guid":{"rendered":"http:\/\/www.summersidearc.com\/?p=4319"},"modified":"2022-08-14T06:50:41","modified_gmt":"2022-08-14T09:50:41","slug":"propagation-and-space-weather-53","status":"publish","type":"post","link":"http:\/\/www.summersidearc.com\/index.php\/2022\/08\/14\/propagation-and-space-weather-53\/","title":{"rendered":"Propagation and Space Weather&#8230;."},"content":{"rendered":"\n<p>SFI = 124 <\/p>\n\n\n\n<p>A index = 10 <\/p>\n\n\n\n<p>K index = 2 <\/p>\n\n\n\n<p>SSN = 97<\/p>\n\n\n\n<p><strong>CHANCE OF FLARES:\u00a0<\/strong>NOAA forecasters say there is a 25% chance of\u00a0<a href=\"https:\/\/www.spaceweather.com\/glossary\/flareclasses.html\">M-class<\/a>\u00a0solar flares today. With 8 numbered sunspot groups on the solar disk, a flare could come from almost anywhere. The most likely source would be fast-growing sunspot AR3081, which is nearly facing Earth.<\/p>\n\n\n\n<p><strong>BREAKING WAVE:\u00a0<\/strong>Yesterday in the core of sunspot AR3078, an S-shaped strand of magnetism erupted. What happened next was a little unusual. A blast wave shot out sideways and broke against the wall of a nearby coronal hole:<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.spaceweather.com\/images2022\/14aug22\/breakingwave_strip.gif\" alt=\"\" \/><\/figure>\n\n\n\n<p>Coronal holes are voids in the sun&#8217;s atmosphere where magnetic fields open up, allowing solar wind to escape. The hole&#8217;s nearly vertical magnetic walls and outflowing stream of solar wind stopped this blast in its tracks.<\/p>\n\n\n\n<p>The S-shaped filament, called a &#8220;<a href=\"https:\/\/solarscience.msfc.nasa.gov\/papers\/Sterling\/sigmoids_review.pdf\">sigmoid<\/a>,&#8221; re-formed after the explosion. Sigmoids are notoriously unstable, so more eruptions may be in the offing.<\/p>\n\n\n\n<figure class=\"wp-block-image is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.spaceweather.com\/images2022\/14aug22\/hmi200.gif\" alt=\"\" width=\"390\" height=\"390\" \/><figcaption>Sunspot AR3081 is growing rapidly and could <br>soon become a source of Earth-directed flares.<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">NOAA Alerts<\/h3>\n\n\n\n<p>Space Weather Message Code: ALTEF3<br>Serial Number: 3222<br>Issue Time: 2022 Aug 14 0536 UTC<\/p>\n\n\n\n<p>CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu<br>Continuation of Serial Number: 3221<br>Begin Time: 2022 Aug 08 1645 UTC<br>Yesterday Maximum 2MeV Flux: 6243 pfu<\/p>\n\n\n\n<p>NOAA Space Weather Scale descriptions can be found at<br>www.swpc.noaa.gov\/noaa-scales-explanation<\/p>\n\n\n\n<p>Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>SFI = 124 A index = 10 K index = 2 SSN = 97 CHANCE OF FLARES:\u00a0NOAA forecasters say there is a 25% chance of\u00a0M-class\u00a0solar flares today. With 8 numbered sunspot groups on the solar disk, a flare could come <a href=\"http:\/\/www.summersidearc.com\/index.php\/2022\/08\/14\/propagation-and-space-weather-53\/\" class=\"read-more\">Read more\u2026 <\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-4319","post","type-post","status-publish","format-standard","hentry","category-archive"],"_links":{"self":[{"href":"http:\/\/www.summersidearc.com\/index.php\/wp-json\/wp\/v2\/posts\/4319","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.summersidearc.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.summersidearc.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.summersidearc.com\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.summersidearc.com\/index.php\/wp-json\/wp\/v2\/comments?post=4319"}],"version-history":[{"count":1,"href":"http:\/\/www.summersidearc.com\/index.php\/wp-json\/wp\/v2\/posts\/4319\/revisions"}],"predecessor-version":[{"id":4320,"href":"http:\/\/www.summersidearc.com\/index.php\/wp-json\/wp\/v2\/posts\/4319\/revisions\/4320"}],"wp:attachment":[{"href":"http:\/\/www.summersidearc.com\/index.php\/wp-json\/wp\/v2\/media?parent=4319"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.summersidearc.com\/index.php\/wp-json\/wp\/v2\/categories?post=4319"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.summersidearc.com\/index.php\/wp-json\/wp\/v2\/tags?post=4319"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}