{"id":12637,"date":"2015-03-13T15:20:24","date_gmt":"2015-03-13T19:20:24","guid":{"rendered":"http:\/\/swling.com\/blog\/?p=12637"},"modified":"2015-03-13T15:20:24","modified_gmt":"2015-03-13T19:20:24","slug":"x-class-solar-flare-causes-radio-blackout","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2015\/03\/x-class-solar-flare-causes-radio-blackout\/","title":{"rendered":"X-class solar flare causes radio blackout"},"content":{"rendered":"
\"X-class-Flare\"<\/a>

(Image source: Screen capture from NASA video)<\/p><\/div>\n

(Source: Discovery News<\/a>)<\/p>\n

The sun has erupted with its first X-class solar flare of 2015, a not-so-subtle reminder that it can still muster the energy required to generate the most powerful class of solar explosion.<\/p>\n

The magnetic eruption occurred yesterday (Wednesday) at 12:22 p.m. ET (16:22 UT), lighting up a huge area in the lower solar corona (the sun\u2019s magnetically dominated \u2018atmosphere\u2019). Shortly after the huge eruption, that measured X2 on the scale of flare energy, Spaceweather.com reports a radio blackout was detected over large swathes of the globe, including much of the Americas.<\/p>\n

\u201cThe X-flare scrambled the ionosphere thoroughly so that no decametric radio signals were supported in my part of the world,\u201d said amateur radio astronomer Thomas Ashcraft. \u201cThe ionosphere started to reform after about fifteen minutes when stations began to reappear. (The stuff visible during the blackout was my own observatory electricity. Nothing exterior.)\u201d<\/p>\n

Based in New Mexico, Ashcraft reports that the blackout was most obvious in the frequency range of 15 MHz to 26 MHz.<\/p>\n

[Continue reading at Discovery News…<\/a>]<\/p><\/blockquote>\n

Good news? There may be some HF band openings in the wake of this flare. We shall see.<\/p>\n","protected":false},"excerpt":{"rendered":"

(Source: Discovery News) The sun has erupted with its first X-class solar flare of 2015, a not-so-subtle reminder that it can still muster the energy required to generate the most powerful class of solar explosion. The magnetic eruption occurred yesterday (Wednesday) at 12:22 p.m. ET (16:22 UT), lighting up a huge area in the lower […]<\/p>\n","protected":false},"author":15,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[3,43,810],"tags":[809,808,1672,4107],"class_list":["post-12637","post","type-post","status-publish","format-standard","hentry","category-news","category-shortwave-radio","category-space-weather","tag-cme","tag-coronal-mass-ejections","tag-nasa","tag-space-weather"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pn3uc-3hP","jetpack-related-posts":[{"id":58617,"url":"https:\/\/swling.com\/blog\/2024\/01\/x5-class-solar-flare-is-the-strongest-of-solar-cycle-25\/","url_meta":{"origin":12637,"position":0},"title":"X5-Class Solar Flare is the strongest of Solar Cycle 25","author":"Thomas","date":"January 1, 2024","format":false,"excerpt":"Many thanks to SWLing Post contributor, Troy Riedel, who shares the following news from Spaceweather.com: GEOMAGNETIC STORM WATCH (G2):\u00a0A CME\u00a0launched into space by yesterday's X5-class solar flare (see below) *does* have an Earth-directed component. 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This is the strongest flare of Solar Cycle 25 (so far) and the\u2026","rel":"","context":"In "News"","block_context":{"text":"News","link":"https:\/\/swling.com\/blog\/category\/news\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2023\/12\/lopsidedhalo_dice_opt.gif?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":11151,"url":"https:\/\/swling.com\/blog\/2014\/10\/radio-blackout-x-ray-event-exceeds-x1\/","url_meta":{"origin":12637,"position":2},"title":"Radio blackout: X-Ray Event exceeds X1","author":"Thomas","date":"October 22, 2014","format":false,"excerpt":"I've heard from several of you this morning that the shortwave bands are dead. It's not your radio...it's our sun. We're currently\u00a0experiencing an X-ray event exceeding X1 on the NOAA Space Weather Scale. This equates to wide area blackout of HF radio communication and loss of radio contact for about\u2026","rel":"","context":"In "News"","block_context":{"text":"News","link":"https:\/\/swling.com\/blog\/category\/news\/"},"img":{"alt_text":"latest_sxi","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/10\/latest_sxi.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/10\/latest_sxi.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/10\/latest_sxi.jpg?resize=525%2C300 1.5x"},"classes":[]},{"id":28182,"url":"https:\/\/swling.com\/blog\/2017\/09\/hf-radio-blackouts-in-wake-of-solar-flares\/","url_meta":{"origin":12637,"position":3},"title":"HF Radio blackouts in wake of solar flares","author":"Thomas","date":"September 8, 2017","format":false,"excerpt":"(Source: ARRL via Mike Terry) NOAA\u2019s Space Weather Prediction Center (SWPC) has issued a strong (G3) geomagnetic storm watch for September 7 through September 9. The SWPC said the watch for September 7 remains in effect due to the arrival of a coronal mass ejection (CME) and the effects of\u2026","rel":"","context":"In "Ham Radio"","block_context":{"text":"Ham Radio","link":"https:\/\/swling.com\/blog\/category\/ham-radio\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/09\/GeoStormForecast-e1504865980755.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/09\/GeoStormForecast-e1504865980755.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/09\/GeoStormForecast-e1504865980755.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/09\/GeoStormForecast-e1504865980755.jpeg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":42403,"url":"https:\/\/swling.com\/blog\/2020\/03\/first-long-duration-flare-of-solar-cycle-25\/","url_meta":{"origin":12637,"position":4},"title":"First long-duration flare of Solar Cycle 25","author":"Thomas","date":"March 20, 2020","format":false,"excerpt":"Many thanks to SWLing Post\u00a0contributor, Mike Hansgen (K8RAT), who shares Tamitha Skov\u2019s latest space weather forecast video: https:\/\/youtu.be\/oNfOxlROKko","rel":"","context":"In "News"","block_context":{"text":"News","link":"https:\/\/swling.com\/blog\/category\/news\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/03\/AR-2758-magnetogram-1024x640.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/03\/AR-2758-magnetogram-1024x640.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/03\/AR-2758-magnetogram-1024x640.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":58311,"url":"https:\/\/swling.com\/blog\/2023\/11\/multiple-cmes-and-almost-x-class-flare-incoming\/","url_meta":{"origin":12637,"position":5},"title":"Multiple CMEs and “Almost” X-Class Flare Incoming","author":"Thomas","date":"November 28, 2023","format":false,"excerpt":"Many thanks to SWLing Post contributor, Troy Riedel, who shares the following item from Spaceweather.com. 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