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<\/p>\nThe CME that left the sun on Nov. 5 could trigger more auroras tonight. (Image credit: NOAA)<\/p>\n
The overnight storm was likely triggered by a glancing CME<\/a> arrival that combined with lingering effects from a high-speed solar wind<\/a> stream, according to NOAA’s Space Weather Prediction Center<\/a> (SWPC). The result was a strong burst of auroral activity, with sightings reported across Europe<\/a>, Canada<\/a> and the northern U.S<\/a>.<\/p>\n <\/p>\n But more solar storms are still on the way, saving the biggest until last. The M7.4 solar flare<\/a> that erupted on Nov. 5 also released a CME traveling between 1,100 and 1,400 km\/s (around 2.5\u20133.1 million mph) and is expected to reach Earth<\/a> later on Nov. 6 or early Nov. 7 (UTC), according to NOAA’s SWPC. This incoming CME, combined with a fast solar wind stream from a nearby coronal hole, could trigger another round of strong geomagnetic storming over the next 24 to 48 hours.<\/p>\n You may like<\/p>\n What does this mean?<\/p>\n A strong (G3) geomagnetic storm indicates that Earth’s magnetic field<\/a> is heavily disturbed by solar activity. These storms can cause<\/a> intermittent satellite navigation issues and high-frequency radio disruptions, as well as voltage corrections in power systems, particularly at high latitudes.<\/p>\n \n NOAA’s G3 storm watch from Nov. 6 through Nov. 7. (Image credit: NOAA Space Weather Prediction Center)<\/p>\n Strong geomagnetic storms can also spark bright, dynamic auroras<\/a>, sometimes much farther into mid-latitudes than normal. If you’re located in Canada, northern Europe and the northern U.S., make sure you keep your eyes on the skies tonight, as we could be in for a treat.<\/p>\n Space weather physicist Tamitha Skov described the current forecast<\/a> as “an aurora photographer’s dream starting now and lasting at least through the weekend,” adding that G3 to G4 storm levels are possible by Friday as multiple CMEs interact with Earth’s magnetic field.<\/p>\n A whole train of big #solarstorms are on their way, along with some smaller storms hitting now, and some fast solar wind! It is an #aurora photographers dream starting now and lasting at least through the weekend. Right now, the biggest of the storms should hit late Thursday or\u2026 pic.twitter.com\/OL50yH72y7November 5, 2025<\/a><\/p>\n
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