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A unique celestial show over northern U.S. skies<\/strong><\/p>\n Friday, May 23, 2025<\/strong> \u2014 Skywatchers across parts of the northern United States<\/strong> may catch a glimpse of the northern lights<\/strong> tonight, as space weather forecasters predict the possible arrival of a coronal mass ejection (CME)<\/strong> that left the Sun<\/strong> on May 17<\/strong>. According to the National Oceanic and Atmospheric Administration (NOAA)<\/strong>, geomagnetic activity could reach G1 (Minor) storm levels<\/strong>, which would make aurora borealis<\/strong> visible in select areas along the U.S.-Canada border<\/strong>.<\/p>\n <\/p>\n What\u2019s causing the aurora activity tonight<\/strong><\/p>\n A coronal mass ejection<\/strong>, or CME, is essentially a vast cloud of electrified gas and magnetic fields<\/strong> released from the Sun\u2019s surface<\/strong>. This particular event was likely triggered by a solar flare<\/strong>, an explosive burst of radiation. While there remains uncertainty about whether the CME will actually strike Earth’s magnetic field, NOAA<\/strong> warns that a glancing blow is possible<\/strong>, especially considering the presence of a large coronal hole<\/strong> currently facing Earth<\/strong>. Coronal holes are regions of the Sun\u2019s outer atmosphere<\/strong>, or corona<\/strong>, where magnetic field lines open out into space, allowing solar wind<\/strong> to escape more freely \u2014 a known driver of auroral activity.<\/p>\n <\/p>\n Expected viewing areas across the United States<\/strong><\/p>\n Should this geomagnetic storm materialize, tonight\u2019s aurora borealis<\/strong> may be visible under clear skies in parts of:<\/p>\n <\/p>\n Washington<\/strong>, northern Idaho<\/strong>, Montana<\/strong>, North Dakota<\/strong>, South Dakota<\/strong>, Minnesota<\/strong>, Wisconsin<\/strong>, Michigan<\/strong>, and Maine<\/strong>.<\/p>\n This forecast is driven by NOAA’s aurora model<\/strong>, which currently predicts a Kp index of 4<\/strong>. That level suggests a modest expansion<\/strong> of auroral visibility beyond the polar regions, potentially delivering vibrant, moving light displays to these northern states.<\/p>\n <\/p>\n What makes this timing significant<\/strong><\/p>\n The Sun is currently around the peak of its 11-year solar cycle<\/strong>, known as the solar maximum<\/strong>, which intensifies solar activity like flares, CMEs, and coronal holes. Since October 2023<\/strong>, the Sun<\/strong> has shown signs of reaching this peak, and earlier this year, a G5 geomagnetic storm<\/strong> in May 2024<\/strong> created one of the most powerful auroral events in recent history \u2014 the strongest since 2004<\/strong>.<\/p>\n As Earth remains in the path of turbulent solar wind streams<\/strong>, especially from the current coronal hole, even moderate storms can produce eye-catching auroras<\/strong> well beyond typical polar latitudes.<\/p>\n <\/p>\n Stay informed<\/strong><\/p>\n Real-time updates and the latest 30-minute aurora forecasts<\/strong> are available directly from NOAA<\/strong>, offering valuable insight into the best viewing times and potential visibility zones. Observers in the highlighted states should look northward late tonight and hope for cloud-free skies<\/strong> to witness this rare and mesmerizing natural phenomenon.<\/p>\n","protected":false},"excerpt":{"rendered":" A unique celestial show over northern U.S. skies Friday, May 23, 2025 \u2014 Skywatchers across parts of the northern United States may catch a glimpse of the northern lights tonight, as space weather forecasters predict the possible arrival of a coronal mass ejection (CME) that left the Sun on May 17. According to the National […]<\/p>\n","protected":false},"author":15,"featured_media":2765,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2764","post","type-post","status-publish","format-standard","has-post-thumbnail","category-news"],"yoast_head":"\n