{"id":7187,"date":"2023-04-12T11:16:14","date_gmt":"2023-04-12T10:16:14","guid":{"rendered":"https:\/\/meic.cymru\/?p=7187"},"modified":"2025-11-13T11:50:50","modified_gmt":"2025-11-13T11:50:50","slug":"rhybudd-argyfwng-cyhoeddus","status":"publish","type":"post","link":"https:\/\/meic.cymru\/cy\/2023\/04\/12\/rhybudd-argyfwng-cyhoeddus\/","title":{"rendered":"Rhybudd Argyfwng Cyhoeddus: Y Seiren Fydd Yn Canu Ar Dy Ff\u00f4n"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Am 3yp ar ddydd Sul, 23 Ebrill 2023, bydd\u00a0<a href=\"https:\/\/www.gov.uk\/alerts\/announcements.cy\" target=\"_blank\" rel=\"noreferrer noopener\">rhybudd sain seiren yn cael ei yrru<\/a>\u00a0i bob dyfais ff\u00f4n clyfar (smartphone) yn y Deyrnas Unedig (DU). Bwriad y rhybudd yma yw profi system rhybuddion argyfwng cyhoeddus newydd Llywodraeth y DU.<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Beth yw\u2019r system rhybuddio\u2019r cyhoedd?<\/h3>\n\n\n\n<p>Mae\u2019r&nbsp;<a href=\"https:\/\/www.gov.uk\/alerts\/about.cy\" target=\"_blank\" rel=\"noreferrer noopener\">system rhybuddio\u2019r cyhoedd<\/a>&nbsp;yn cael ei brofi gan Lywodraeth y DU. Mae\u2019n caniat\u00e1u i\u2019r Llywodraeth a gwasanaethau argyfwng yrru negeseuon brys i rybuddio pobl am sefyllfaoedd gall effeithio ar eich bywyd, iechyd, neu gartref mewn sefyllfaoedd fel llifogydd a thanau. Gall gynnwys rhifau ff\u00f4n neu ddolenni i wefannau am ragor o wybodaeth.<\/p>\n\n\n\n<p>Mae\u2019r system yn rhad ac am ddim ac ni fydd yn cael effaith ar fatri na gofod storio dy ff\u00f4n.<\/p>\n\n\n\n<p>Yng Nghymru bydd y negeseuon yn cael ei yrru yn Gymraeg hefyd.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-thumbnail is-style-rounded\"><a href=\"https:\/\/meic.cymru\/wp-content\/uploads\/2025\/11\/publicsafetywarningalert.png\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/meic.cymru\/wp-content\/uploads\/2025\/11\/publicsafetywarningalert-150x150.png\" alt=\"Fire emoji for the public safety warning alert\" class=\"wp-image-7189\" srcset=\"https:\/\/meic.cymru\/wp-content\/uploads\/2025\/11\/publicsafetywarningalert-150x150.png 150w, https:\/\/meic.cymru\/wp-content\/uploads\/2025\/11\/publicsafetywarningalert.png 300w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Beth fydd yn digwydd yn ystod y profi?<\/h3>\n\n\n\n<p>Yn ystod y prawf, byddi di\u2019n derbyn rhybudd a bydd dy ff\u00f4n yn dirgrynu ac yn canu\u2019n uchel fel s\u0175n seiren. Bydd hwn yn parhau am tua 10 eiliad ac yna bydd yn stopio\u2019n awtomatig. Bydd y rhybudd yn aros ar y sgrin nes i ti ei ddarllen. Gan mai prawf yw hwn, nid oes rhaid i ti wneud dim.<\/p>\n\n\n\n<p>Bydd y seiren yn dal i ganu hyd yn oed os yw\u2019r s\u0175n wedi ei ddiffodd ar y ff\u00f4n, ond ni fyddi di\u2019n derbyn rhybudd os yw\u2019r ddyfais wedi\u2019i ddiffodd neu mewn \u2018airplane\u2019 neu \u2018flight mode\u2019.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-4-3 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"How emergency alerts works\" width=\"500\" height=\"375\" src=\"https:\/\/www.youtube.com\/embed\/MvZM-oCReu8?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Beth sy\u2019n digwydd os dwi\u2019n derbyn rhybudd go iawn yn y dyfodol?<\/h3>\n\n\n\n<p>Bydd y rhybudd yn cynnwys manylion yr ardal sydd wedi ei effeithio a chyfarwyddiadau am beth ddylid gwneud i aros yn ddiogel.<\/p>\n\n\n\n<p>Pan fyddi di\u2019n derbyn rhybudd argyfwng, dylid:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Stopio\u2019r hyn rwyt ti\u2019n gwneud<\/li>\n\n\n\n<li>Darllen y rhybudd os yw\u2019n ddiogel i ti wneud hynny<\/li>\n\n\n\n<li>Dilyn y cyfarwyddiadau yn y rhybudd<\/li>\n<\/ul>\n\n\n\n<p>Os wyt ti\u2019n gyrru cerbyd pan fydd y rhybudd yn dod, dylid stopio mewn lle diogel i\u2019w ddarllen. Paid defnyddio ff\u00f4n symudol wrth yrru.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Beth am breifatrwydd?<\/h3>\n\n\n\n<p>Mae\u2019r system newydd yn defnyddio technoleg ffonau symudol yn ddibynnol ar leoliad presennol rhywun.<\/p>\n\n\n\n<p>Pan fydd rhybudd yn barod i gael ei yrru, bydd mastiau ffonau symudol yn yr ardal benodol yn ei ddarlledu, gan yrru\u2019r rhybudd i bob ff\u00f4n clyfar yn yr ardal yna.<\/p>\n\n\n\n<p>Mae Swyddfa\u2019r Cabinet yn dweud na fydd y gwasanaeth yn casglu unrhyw wybodaeth bersonol fel enw, rhif ff\u00f4n, na lleoliad. Nid oes rhaid i wasanaethau lleoliad fod ymlaen er mwyn derbyn y rhybudd.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-thumbnail is-style-rounded\"><a href=\"https:\/\/meic.cymru\/wp-content\/uploads\/2023\/04\/publicsafetyalert.png\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/meic.cymru\/wp-content\/uploads\/2023\/04\/publicsafetyalert-150x150.png\" alt=\"megaphone emoji for the public safety warning alert\" class=\"wp-image-7192\" srcset=\"https:\/\/meic.cymru\/wp-content\/uploads\/2023\/04\/publicsafetyalert-150x150.png 150w, https:\/\/meic.cymru\/wp-content\/uploads\/2023\/04\/publicsafetyalert.png 300w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">A fydd pob dyfais yn derbyn y rhybudd?<\/h3>\n\n\n\n<p>Mae rhybuddion argyfwng yn gweithio ar bob rhwydwaith ff\u00f4n sydd wedi ei gysylltu i 4G a 5G, gall hyn gynnwys ffonau symudol neu lechen Android.<\/p>\n\n\n\n<p>Golygai hyn na fyddant yn gweithio ar ddyfeisiau electroneg fel arall, fel cyfrifiaduron, gliniaduron, consolau gemau, teledu,&nbsp; neu ffonau symudol h\u0177n sydd a 3G neu gynt.<\/p>\n\n\n\n<p>Ni fydd eich llechen yn derbyn rhybudd os nad oes mynediad i rwydwaith ffonau symudol.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Nid oes gen i ff\u00f4n clyfar \u2013 beth wna i?<\/h3>\n\n\n\n<p>Os nad oes gen ti ddyfais sy\u2019n cydweddu, yna ni fyddi di\u2019n derbyn y rhybudd, felly nid oes dim dylet ti wneud ar gyfer y prawf yma.<\/p>\n\n\n\n<p>Gan mai dim ond prawf yw hwn, ni fyddi di\u2019n derbyn gwybodaeth am y rhybudd, ond, yn y dyfodol os oes sefyllfa ble mae bywydau mewn perygl, byddi di\u2019n derbyn gwybodaeth am yr argyfwng gan fod y gwasanaethau argyfwng a Llywodraeth y DU yn rhybuddio mewn ffyrdd eraill hefyd.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"UK Emergency Alerts\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/9yLd2AjGzYI?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Sut fedra i stopio\u2019r rhybudd?<\/h3>\n\n\n\n<p>Mae\u2019r Llywodraeth yn argymell i ti barhau i dderbyn y rhybuddion ar gyfer diogelwch dy hun, ond mae posib eu diffodd os oes angen. Mewn rhai sefyllfaoedd, fel camdriniaeth yn y cartref, efallai bod ff\u00f4n cudd yn y t\u0177, ac rwyt ti eisiau cadw bodolaeth hwnnw\u2019n gyfrinach.&nbsp; I wneud hynny, mae posib chwilio am \u2018rybuddion argyfwng\u2019 yng ngosodiadau\u2019r ff\u00f4n a diffodd y rhybuddion difrifol ac eithafol.<\/p>\n\n\n\n<p>Ar iPhone, cer i \u2018Gosodiadau\u2019, yna \u2018Hysbysiadau\u2019. Diffodd \u2018Rhybuddion Eithafol\u2019 a \u2018Rhybuddion Difrifol\u2019.<\/p>\n\n\n\n<p>Ar Android, cer i \u2018Gosodiadau\u2019, yna \u2018Hysbysiadau\u2019, yna \u2018Rhybuddion Argyfwng Di-Wifr\u2019 i ddiffodd rhybuddion argyfwng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Siarad \u00e2 Meic<\/h3>\n\n\n\n<p>Poeni ac angen siarad? Meic yw\u2019r llinell gymorth gwybodaeth, cyngor ac eiriolaeth i blant a phobl ifanc ledled Cymru. Cysyllta os wyt ti angen siarad \u00e2 rhywun am unrhyw beth sydd yn dy boeni. Mae\u2019n gyfrinachol ac am ddim. Mae\u2019r gwasanaeth yn agored rhwng 8yb a hanner nos pob dydd, ac mae posib cysylltu ar y ff\u00f4n, neges testun neu\u00a0<a href=\"https:\/\/www.meiccymru.org\/cym\/\">sgwrs ar-lein.<\/a> <\/p>\n","protected":false},"excerpt":{"rendered":"<p>Am 3yp ar ddydd Sul, 23 Ebrill 2023, bydd\u00a0rhybudd sain seiren yn cael ei yrru\u00a0i bob dyfais ff\u00f4n clyfar (smartphone) yn y Deyrnas Unedig (DU). Bwriad y rhybudd yma yw profi system rhybuddion argyfwng cyhoeddus newydd Llywodraeth y DU. Beth yw\u2019r system rhybuddio\u2019r cyhoedd? Mae\u2019r&nbsp;system rhybuddio\u2019r cyhoedd&nbsp;yn cael ei brofi gan Lywodraeth y DU. Mae\u2019n [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":7198,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1659,1660],"tags":[],"class_list":["post-7187","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-diogelwch-ar-lein","category-diogelwch-corfforol"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Rhybudd Argyfwng Cyhoeddus: Y Seiren Fydd Yn Canu Ar Dy Ff\u00f4n - Meic<\/title>\n<meta name=\"description\" content=\"Am 3yp ar 23 Ebrill 2023, bydd rhybudd yn cael ei yrru i bob dyfais ff\u00f4n clyfar yn y DU i brofi system rhybudd argyfwng cyhoeddus newydd.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/meic.cymru\/cy\/2023\/04\/12\/rhybudd-argyfwng-cyhoeddus\/\" \/>\n<meta property=\"og:locale\" content=\"cy_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Rhybudd Argyfwng Cyhoeddus: Y Seiren Fydd Yn Canu Ar Dy Ff\u00f4n - 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