{"id":669257,"date":"2026-07-02T05:44:10","date_gmt":"2026-07-02T05:44:10","guid":{"rendered":"https:\/\/www.newsbeep.com\/uk\/669257\/"},"modified":"2026-07-02T05:44:10","modified_gmt":"2026-07-02T05:44:10","slug":"x1-1-solar-flare-produces-earth-directed-cme-g2-geomagnetic-storm-watch-issued-for-july-3","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/uk\/669257\/","title":{"rendered":"X1.1 solar flare produces Earth-directed CME, G2 geomagnetic storm watch issued for July 3"},"content":{"rendered":"<p class=\"wp-block-paragraph\">NOAA\u2019s Space Weather Prediction Center (SWPC) issued a G2 \u2013 Moderate Geomagnetic Storm Watch at 12:40 UTC on July 1, after an X1.1 solar flare and associated full-halo coronal mass ejection. The watch forecasts G1 \u2013 Minor, geomagnetic storm conditions on July 1, below-G1 conditions on July 2, and G2 \u2013 Moderate conditions on July 3.<\/p>\n<p class=\"wp-block-paragraph\">The X1.1 flare peaked at 20:50 UTC on June 30 from active region 4479. It was associated with Type II and Type IV radio emissions, a Type II speed estimate of 1 496 km\/s, a 410 sfu tenflare, and EUV dimming observed at 20:59 UTC. A full-halo CME was first visible in GOES-19 CCOR-1 imagery at 21:45 UTC.<\/p>\n<p class=\"wp-block-paragraph\">Potential impacts are expected primarily poleward of 55\u00b0 geomagnetic latitude and include possible power-grid fluctuations and voltage alarms in high-latitude systems, satellite orientation irregularities, increased drag on low-Earth-orbit satellites, fading of high-frequency radio propagation at high latitudes, and aurora visibility as far south as New York, Wisconsin, and Washington state.<\/p>\n<p><img loading=\"lazy\" data-lazyloaded=\"1\" decoding=\"async\" width=\"899\" height=\"898\" src=\"https:\/\/www.newsbeep.com\/uk\/wp-content\/uploads\/2026\/07\/full-halo-cme-produced-by-x1.1-solar-flare-on-june-30-2026.webp\" alt=\"full halo cme produced by x1.1 solar flare on june 30 2026\" class=\"wp-image-250446\"  data-\/>Full halo CME produced by X1.1 solar flare on June 30, 2026. Credit: ESA\/NASA SOHO LASCO C3<\/p>\n<p class=\"wp-block-paragraph\">Geomagnetic activity had already reached active to G1 \u2013 Minor levels during the previous 24 hours following the arrival of a separate CME that left the Sun on June 26.<\/p>\n<p class=\"wp-block-paragraph\">Solar activity is forecast to remain at moderate levels, with a slight chance of further X-class flares from active regions 4475, 4478, and 4479. There is also a slight chance of an S1 \u2013 Minor solar radiation storm.<\/p>\n<p><img loading=\"lazy\" data-lazyloaded=\"1\" decoding=\"async\" width=\"860\" height=\"835\" src=\"https:\/\/www.newsbeep.com\/uk\/wp-content\/uploads\/2026\/07\/star-char-map-june-30-2026.webp\" alt=\"star char map june 30 2026\" class=\"wp-image-250454\"  data-\/>Image credit: Solen<\/p>\n<p class=\"wp-block-paragraph\">Solar activity was elevated during the past 7 days with nine events at M1.0 or stronger \u2014 M1.4 at 21:40 UTC on June 29; M1.3 at 01:16 UTC, M5.8 at 12:57 UTC, and X1.1 at 20:50 UTC on June 30; and M1.1 at 06:27 UTC, M1.0 at 06:43 UTC, M1.5 at 07:35 UTC, M2.5 at 08:17 UTC, and M1.3 at 10:08 UTC on July 1.<\/p>\n<p class=\"wp-block-paragraph\">References:<\/p>\n<p class=\"wp-block-paragraph\">1 Forecast Discussion \u2013 <a href=\"https:\/\/www.spaceweather.gov\/\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">NOAA\/SWPC<\/a> \u2013 July 1, 2026<\/p>\n","protected":false},"excerpt":{"rendered":"NOAA\u2019s Space Weather Prediction Center (SWPC) issued a G2 \u2013 Moderate Geomagnetic Storm Watch at 12:40 UTC on&hellip;\n","protected":false},"author":2,"featured_media":669258,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[59,73345,224057,90,77176,13991,56,54,55],"class_list":["post-669257","post","type-post","status-publish","format-standard","has-post-thumbnail","category-science","tag-gb","tag-geomagnetic-storm","tag-geomagnetic-storm-forecast","tag-science","tag-solar-activity","tag-space-weather","tag-uk","tag-united-kingdom","tag-unitedkingdom"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/posts\/669257","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/comments?post=669257"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/posts\/669257\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/media\/669258"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/media?parent=669257"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/categories?post=669257"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/tags?post=669257"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}