So if the northern lights do appear, folks in the southern portion of the state should be able to see them, said Marcia Cronce, a meteorologist with the National Weather Service in Sullivan. Skies over the southern half of Wisconsin, including the Milwaukee metro area, are expected to be mostly clear on Wednesday night. Auroras typically appear as rippling curtains of green, red or purple light. "These clouds of particles are predicted to collide with Earth's magnetic field on Wednesday night into Thursday, sparking dazzling displays of the aurora," AccuWeather's Brian Lada said.Īccording to, much of the state, including Milwaukee, could see the aurora directly overhead. Recent explosions on the surface of the sun have sent clouds of charged particles, known as coronal mass ejections, hurtling through the solar system, according to AccuWeather. Reseacher Sini Merikallio explains the basics of northern lights or aurora borealis in 3 minutes.Keep an eye to the sky across Wisconsin on Wednesday night. The aurora borealis, or northern lights, may be making a rare appearance. Lying on a mattress may be a more comfortable way to gaze up than bending your neck backward for lengthy times. Aurora Borealis Forecast and Alerts is an app designed to monitor real-time auroral activity and push alert to let you know if there may be aurora borealis. Optimal weather for watching auroras, dark and cloudless night, is practically always cold in Finland. ![]() As auroras are most often seen on the northern sky, try to find an unrestricted view at least toward the northern horizon. Tips for aurora watchingįind a dark, open place preferably far away from town lights. Nighttime, the service also displays images from selected all sky cameras in Finland. Following the magnetic activity serves as nowcasting: when activity reaches a "red" level in the service on the station closest to you, it is time to go out to watch the sky. Geomagnetic activity is closely linked with auroras: when the activity level exceeds a location-specific threshold, it is probable to see auroras (weather permitting). ISES RWC Finland provides real-time information on the level of geomagnetic disturbances in Finland. In Lapland auroras are quite common always, even during solar minimum. This solar cycle effect is most pronounced in Southern Finland. The previous sunspot maximum was in 2014, so the winters of 2015–2017 are excellent time for auroras. The sunspots won't necessarily create geomagnetic storms directed at planet Earth, and therefore, we might not see the Northern Lights as much as we'd like. Solar cycles last for 11 years, and the peak is expected to take place in July 2025. The amount of large auroral displays tends to follow the amount of sunspots with a lag of a couple of years. Magnetic energy is being directed towards Earth, spreading the Northern Lights beyond the Poles. ![]() The solar activity, which varies with the 11-year sunspot cycle, also affects the frequency of auroras. Considering also the weather, the best time for seeing auroras in Northern Finland is in March and early April. Especially so in Lapland, where the sun does not set at all during a period around midsummer. However, in summer the nights are generally too light for seeing the auroras. However, auroras may occur randomly anytime when the sky is dark enough for seeing them.Īuroras occur quite evenly throughout the year, although the rate is slightly higher during spring and autumn than during winter and summer. The typical time for auroral displays is at midnight, and a couple of hours before and after. Helsinki, Turku): once in a month on average. ![]() ski resorts Ylläs, Levi, Saariselkä): roughly 50 % of nights The statistical probability for seeing auroras during a dark and cloudless night is approximately: During geomagnetic storms the auroral oval expands southward and then auroras are seen also in Central and Southern Finland. The probability for seeing auroras is best in the northernmost part of the country, i.e. Where?įinland is on the southern rim of the auroral oval. Finland is one of the best inhabited regions in the world for viewing northern lights, i.e.
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