{"id":794853,"date":"2025-03-31T09:18:09","date_gmt":"2025-03-31T14:18:09","guid":{"rendered":"http:\/\/spaceweekly.com\/?p=794853"},"modified":"2025-03-31T09:18:09","modified_gmt":"2025-03-31T14:18:09","slug":"s1-minor-solar-radiation-storm-following-x1-1-flare","status":"publish","type":"post","link":"https:\/\/spaceweekly.com\/?p=794853","title":{"rendered":"S1 – Minor solar radiation storm following X1.1 flare"},"content":{"rendered":"


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Minor solar radiation storm conditions were registered on March 31, 2025, following an X1.1 solar flare that erupted from the Sun\u2019s east limb on March 28.<\/strong><\/p>\n<\/div>\n

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S1 \u2013 Minor solar radiation storm conditions were observed on March 31, 2025, as a result of a powerful X1.1 solar flare on the east limb of the Sun on March 28.<\/p>\n

The S1 threshold was reached at 11:05 UTC, but the storm only briefly touched it before gradually subsiding. However, it\u2019s possible we might still see S1 periods today and through April 2.<\/p>\n

Solar radiation storms of this intensity can cause minor impacts on High Frequency (HF) radio in the polar regions. They happen around 50 times per one 11-year solar cycle.<\/p>\n

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Image credit: SWPC<\/figcaption><\/figure>\n<\/div>\n
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Image credit: SWPC<\/figcaption><\/figure>\n<\/div>\n
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Image credit: SWPC<\/figcaption><\/figure>\n<\/div>\n

Solar activity was at high levels in 24 hours to 12:30 UTC today, with M1.6 flare from Active Region 4048 at 16:42 on March 30.<\/p>\n

Solar wind parameters predominantly reflected waning positive polarity coronal hole high speed stream (CH HSS) effects. A weak glancing blow impact from a March 28 CME was registered at approximately 10:20 UTC today, increasing the total field to 12 nT.<\/p>\n

Solar activity is expected to remain enhanced with a 60% chance of M-class and a 15% chance of X-class solar flares through April 2, primarily due to AR 4048.<\/p>\n

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Sunspots on March 31, 2025. Credit: NASA SDO\/HMI<\/figcaption><\/figure>\n<\/div>\n

Read more:<\/p>\n

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Minor solar radiation storm conditions were registered on March 31, 2025, following an X1.1 solar flare that erupted from the Sun\u2019s east limb on March 28. S1 \u2013 Minor solar… <\/p>\n","protected":false},"author":1,"featured_media":794854,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32],"tags":[],"class_list":["post-794853","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-space-weather-reports"],"_links":{"self":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/794853","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=794853"}],"version-history":[{"count":0,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/794853\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/media\/794854"}],"wp:attachment":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=794853"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=794853"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=794853"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}