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Geomagnetic activity could paint skies tonight over Northern U.S.<\/strong><\/p>\n Tuesday, May 21, 2025 \u2013 New York<\/strong> \u2013 A rare opportunity to witness the Northern Lights<\/strong> may arrive tonight for parts of the northern United States<\/strong>, as geomagnetic conditions<\/strong> become favorable for aurora visibility, according to a fresh update from the National Oceanic and Atmospheric Administration (NOAA)<\/strong>.<\/p>\n The latest auroral forecast<\/strong> shows a Kp index of 3<\/strong> on a scale of 0 to 9, suggesting moderate geomagnetic activity<\/strong> strong enough to push the auroral oval<\/strong> farther south than usual. While Canada and Alaska<\/strong> will enjoy the clearest views<\/strong>, select parts of the Lower 48<\/strong> may be lucky enough to catch a glimpse\u2014weather permitting<\/strong>.<\/p>\n The best visibility tonight may occur in the following U.S. states:<\/p>\n Northeastern Washington<\/strong>, northern Idaho<\/strong>, Montana<\/strong>, North Dakota<\/strong>, northern Minnesota<\/strong>, northern Wisconsin<\/strong>, and Upper Michigan<\/strong>. These regions lie just below the NOAA\u2019s auroral visibility line<\/strong>, making them prime candidates for observing the display, especially under clear skies and low light pollution.<\/p>\n The prime time<\/strong> to watch the northern lights<\/strong> is between 10 p.m. and 2 a.m. local time<\/strong>, according to NOAA. Viewers are advised to position themselves at higher altitudes<\/strong>, face north<\/strong>, and find locations well away from urban lighting<\/strong> for the best chance to see the spectacle.<\/p>\n Although major geomagnetic storms<\/strong> aren\u2019t anticipated through Thursday<\/strong>, there may be short-lived active periods<\/strong> tonight and into Wednesday due to a coronal hole<\/strong>\u2014a cooler, less dense region on the sun\u2019s surface that can accelerate solar wind, subtly enhancing auroral activity.<\/p>\n For those hoping to capture the aurora borealis on camera<\/strong>, experts suggest using a wide-angle lens<\/strong>, setting the aperture (F-stop) to 4 or lower<\/strong>, and focusing to infinity<\/strong>. A tripod<\/strong> is essential to prevent motion blur during long exposures.<\/p>\n Smartphone users can also join in the action\u2014enable night mode<\/strong>, turn off flash<\/strong>, and stabilize your device to boost image clarity.<\/p>\n The U.S. is currently in the midst of heightened solar activity after reaching a solar maximum<\/strong> in October 2024<\/strong>, part of the sun\u2019s 11-year cycle<\/strong>. This period brings more frequent solar flares<\/strong> and coronal mass ejections<\/strong>, creating more chances for the northern lights<\/strong> to be seen at lower latitudes<\/strong>.<\/p>\n These solar events<\/strong> unleash electrons that collide with oxygen<\/strong> and nitrogen atoms<\/strong> in the Earth\u2019s upper atmosphere. As those atoms return to their normal state, they emit the dazzling greens, purples, and reds of the aurora borealis<\/strong>.<\/p>\n Tonight may be one of those special moments where science meets spectacle<\/strong>, lighting up skies from Alaska<\/strong> to the Great Lakes<\/strong>.<\/p>\n","protected":false},"excerpt":{"rendered":" Geomagnetic activity could paint skies tonight over Northern U.S. Tuesday, May 21, 2025 \u2013 New York \u2013 A rare opportunity to witness the Northern Lights may arrive tonight for parts of the northern United States, as geomagnetic conditions become favorable for aurora visibility, according to a fresh update from the National Oceanic and Atmospheric Administration […]<\/p>\n","protected":false},"author":17,"featured_media":2607,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2606","post","type-post","status-publish","format-standard","has-post-thumbnail","category-news"],"yoast_head":"\n<\/h3>\n
Where to expect aurora borealis tonight<\/strong><\/h3>\n
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When and how to view the aurora<\/strong><\/h3>\n
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How to photograph tonight\u2019s aurora<\/strong><\/h3>\n
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Why this matters: approaching solar maximum<\/strong><\/h3>\n