On Thursday, the Kp index may reach as high as seven between 10 p.m. A Kp of five or higher - along with a location closer to the poles - poses a greater chance of seeing the Northern Lights, NBC Boston notes. This disturbance level is measured by a Kp index, NBC Boston reports, which ranges from zero to nine and grades the amount of geomagnetic activity in a three-hour period. The National Oceanic and Atmospheric Administration Space Weather Prediction Center issued the geomagnetic storm watch from Wednesday through Friday, with the strongest storm watch issued for Thursday.Īccording to NBC Boston, seeing the Northern Lights in New England depends on the “degree of disturbance of the earth's magnetic field” at the time of the geomagnetic activity. Details below: /OebQXDr1oU- Space Weather Watch AugHow long will the aurora borealis be visible this week? The map shows the southern extend of the aurora borealis starts in the Seattle area and traces through the Midwest, over Chicago and up over New York, Connecticut and Massachusetts.ĪURORA FORECAST: Tonight's aurora forecast for the potentially impending moderate/strong geomagnetic storm shows generally cloudy conditions over the Northeast and better than average conditions for parts of Michigan, the Rocky Mountain West, the Pacific Northwest. Space weather Twitter account Space Weather Watch published a map outlining the locations the Northern Lights could be seen from. On Friday night, the storm level is G2, according to NOAA, which poses a moderate storm level. Bill Murtagh, the program coordinator at the National Oceanic and Atmospheric Administration’s Space Weather Prediction Center, told the Washington Post that the G3-level storm “does bring the northern lights down into the United States.” These storms are graded based on strength, and on Thursday night, the storm is rated as a strong G3. This spurs “coronal mass ejections,” which project “plasma and pieces of the Sun's magnetic field into the atmosphere.” Geomagnetic storms, according to NPR, are when a coronal hole - which are the spots that look black on the Sun - elicits high winds. The National Oceanic and Atmospheric Administration Space Weather Prediction Center issued a geomagnetic storm watch from Wednesday through Friday. What makes the Northern Lights visible in New England?
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