{"id":799940,"date":"2025-12-31T10:30:43","date_gmt":"2025-12-31T15:30:43","guid":{"rendered":"https:\/\/spaceweekly.com\/?p=799940"},"modified":"2025-12-31T10:30:43","modified_gmt":"2025-12-31T15:30:43","slug":"long-duration-m7-1-solar-flare-erupts-from-ar-4324","status":"publish","type":"post","link":"https:\/\/spaceweekly.com\/?p=799940","title":{"rendered":"Long-duration M7.1 solar flare erupts from AR 4324"},"content":{"rendered":"<p> <br \/>\n<\/p>\n<div xmlns:default=\"http:\/\/www.w3.org\/2000\/svg\">\n<p>A Type IV and Type II (estimated velocity of 893 km\/s) radio emissions were associated with the flare event, suggesting a strong coronal mass ejection (CME) was produced.<\/p>\n<p>In addition, a 10cm Radio Burst lasting 22 minutes and with a peak flux of 550 sfu was registered from 13:31 to 13:53 UTC. A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers, including radar, GPS, and satellite communications.<\/p>\n<p>Radio frequencies were forecast to be most degraded over the South Atlantic and parts of Africa and South America.<\/p>\n<p>The location of the source region favors Earth-directed CMEs. Analysis of the event is in progress.<\/p>\n<p>Region 4324 has a \u2018beta-gamma\u2019 magnetic configuration and is capable of producing more strong eruptions on Sun. Earth-directed CMEs from this region remain a possibility in the days ahead.<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><figcaption class=\"wp-element-caption\">Sunspots on December 31, 2025. Credit: NASA SDO\/HMI<\/figcaption><\/figure>\n<\/div>\n<figure class=\"wp-block-video\"><video height=\"928\" style=\"aspect-ratio: 1920 \/ 928;\" width=\"1920\" controls=\"\" loop=\"\" muted=\"\" playsinline=\"\" class=\"perfmatters-lazy\" data-src=\"https:\/\/watchers.news\/wp-content\/uploads\/2025\/12\/m7.1-solar-flare-december-31-2025-aia-304-a.webm\"\/><noscript><video height=\"928\" style=\"aspect-ratio: 1920 \/ 928;\" width=\"1920\" controls=\"\" loop=\"\" muted=\"\" src=\"https:\/\/watchers.news\/wp-content\/uploads\/2025\/12\/m7.1-solar-flare-december-31-2025-aia-304-a.webm\" playsinline=\"\"\/><\/noscript><figcaption class=\"wp-element-caption\">M7.1 solar flare December 31, 2025. Credit: NASA\/SDO, Helioviewer, The Watchers<\/figcaption><\/figure>\n<p>Solar activity was at low levels in 24 hours to 12:30 UTC today, with a few C-class flares mostly from regions 4324 and 4325, both of which had appreciable magnetic flux emergence and shear.<\/p>\n<p>The greater than 2 MeV electron flux, measured by GOES-19, reached high levels with a peak of 5 612 pfu at 15:45 UTC on December 30, and decreased to moderate levels after  19:15 UTC. Moderate 2 MeV electron flux is expected through January 2 as we enter a coronal hole high-speed stream (CH HSS). There is a slight chance (10%) for S1 \u2013 Minor solar radiation storm during the same period.<\/p>\n<p>Solar wind parameters remained at background levels during the first half of the reporting period. Conditions became slightly enhanced after December 30 at 22:35 UTC, when the total interplanetary magnetic field strength (Bt) increased from an average of about 5 nT to around 10 nT.<\/p>\n<p>The north\u2013south component of the magnetic field (Bz) was generally positive (northward), fluctuating between \u22125 and 10 nT. Solar wind speed increased gradually over the period from approximately 400 km\/s to about 450 km\/s. The interplanetary magnetic field phi angle remained mostly positive (away from the Sun).<\/p>\n<p>Solar wind parameters are expected to continue strengthening through January 1 due to the influence of multiple coronal hole high-speed streams. A possible sector boundary crossing is forecast for January 2.<\/p>\n<p>Conditions on January 1 are expected to be particularly disturbed, as a glancing interaction is possible from multiple coronal mass ejections that departed the Sun between December 28 and December 30.<\/p>\n<p>Geomagnetic activity remained at quiet to unsettled levels over the past 24 hours.<\/p>\n<p>Geomagnetic activity is expected to range from quiet to active on December 31. On January 1, conditions may increase to unsettled to G1 -Minor geomagnetic storm levels, before easing back to unsettled to active levels on January 2.<\/p>\n<p>References:<\/p>\n<p><sup>1<\/sup> Forecast Discussion \u2013 SWPC \u2013 Issued at 12:30 UTC on December 31, 2025<\/p>\n<p><!-- MOLONGUI AUTHORSHIP PLUGIN 5.1.0 --><br \/>\n<!-- https:\/\/www.molongui.com\/wordpress-plugin-post-authors --><\/p>\n<\/div>\n<p><br \/>\n<br \/><a href=\"https:\/\/watchers.news\/2025\/12\/31\/long-duration-m7-1-solar-flare-erupts-from-ar-4324\/?rand=772108\">Source link <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A Type IV and Type II (estimated velocity of 893 km\/s) radio emissions were associated with the flare event, suggesting a strong coronal mass ejection (CME) was produced. In addition,&hellip; <\/p>\n","protected":false},"author":1,"featured_media":799941,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32],"tags":[],"class_list":["post-799940","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\/799940","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=799940"}],"version-history":[{"count":0,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/799940\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/media\/799941"}],"wp:attachment":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=799940"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=799940"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=799940"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}