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The northern lights may be visible overnight from up to 10 northern U.S. states on Sunday, April 26, into Monday, April 27, according to NOAA. (Photo by Ross Harried\/NurPhoto via Getty Images)<\/p>\n
NurPhoto via Getty Images<\/p>\n
The northern lights<\/a> may be visible overnight from up to 10 northern U.S. states on Saturday, April 25, into Sunday, April 26, according to a forecast<\/a> by space weather experts at the National Oceanic and Atmospheric Administration. <\/p>\n It comes in the wake of double M1-class solar flares on the sun on April 23. In their wake, NASA\u2019s orbiting Solar Dynamics Observatory tracked a coronal mass ejection (CME) \u2014 a cloud of super-charged particles \u2014 traveling in the direction of Earth. CMEs often cause aurora displays. According to Spaceweather.com<\/a>, this one is expected to graze Earth’s magnetic field. <\/p>\n Northern Lights Tonight: Forecast<\/p>\n The forecast is for a G1 (minor) geomagnetic storm in the offing. \u201cIsolated G1 (Minor) geomagnetic storming conditions are possible on April 26 in response to the arrival of the glancing CME impact,\u201d said<\/a> NOAA. <\/p>\n The northern lights are caused by the solar wind, a constant stream of charged particles flowing from the sun that interacts with Earth\u2019s magnetic field. While most are deflected, some particles spiral along magnetic field lines toward the poles, colliding with oxygen and nitrogen atoms high in the atmosphere. These collisions excite the gases, causing them to release energy as shimmering light. <\/p>\n Northern Lights Forecast: Where And When<\/p>\n A G1-class geomagnetic storm could see aurora visible on the northern horizon from around 10 northern U.S. states and Canada on Saturday, April 25, into Sunday, April 26 \u2014 though timings are always subject to change.<\/p>\n U.S. states that may see aurora include States with the best chance include Alaska and (northerly parts of) Washington, Idaho, Montana, North Dakota, South Dakota, Minnesota, Wisconsin, Michigan and Maine.<\/p>\n If a G2-class geomagnetic storm erupts, aurora may be viewable from states farther south, such as Oregon, Wyoming, Nebraska, Iowa, Illinois, Indiana, Ohio, New York, Vermont and New Hampshire.<\/p>\n Since urban glow can make faint aurora hard to see, drive 30-60 minutes north from city centers or use a light pollution map<\/a> to locate darker skies. Dark Sky Places<\/a> and lakeshores north of cities often make excellent viewing spots. The rule is simple: the darker the northern sky, the more vibrant the display \u2014 even during moderate geomagnetic storms.<\/p>\n Northern Lights Forecast: Latest Updates<\/p>\n To check visibility in real time, use NOAA\u2019s 30-minute aurora forecast<\/a> or download apps such as Aurora Now, My Aurora Forecast or Glendale Aurora for up-to-the-minute alerts and live solar wind data.<\/p>\n