Northern Lights Could Be Visible Across Upper Midwest
Coronal Mass Ejection Expected to Impact Earth
The Northern Lights may be visible over parts of the Upper Midwest later this week after a coronal mass ejection (CME) on Monday night. According to the Space Weather Projection Center (SWPC), the CME is expected to begin impacting Earth on Thursday, but the main effects could be felt on Friday night when a G2 geomagnetic storm watch goes into effect.
What Causes the Northern Lights?
The Northern Lights occur when charged particles from the sun collide with Earth’s upper atmosphere, with the resulting interaction displaying a variety of colors that can be seen across parts of the Northern Hemisphere, according to Space.com.
Forecasted Visibility
With mostly clear skies expected, the Northern Lights may be visible in parts of Minnesota, Wisconsin, and Michigan, though it isn’t expected that they’ll be visible into Illinois and Indiana, according to SWPC forecasts.
The Sun’s 11-Year Solar Cycle
The good news for Chicago-area residents is that we remain in the “maximum phase” of the sun’s 11-year solar cycle. During that phase, the sun’s magnetic poles flip, leading to the star entering a stormy state that produces more sunspots and solar activity, increasing the number of CME’s that can potentially cause the Northern Lights to be visible on Earth, according to NASA.
Recent CME Activity
A recent CME caused a G4 geomagnetic storm to impact Earth’s atmosphere, making the Northern Lights visible across much of the United States.
Conclusion
The Northern Lights are a breathtaking natural phenomenon that can be seen across parts of the Northern Hemisphere. With the expected CME and G2 geomagnetic storm watch, residents of the Upper Midwest may have a chance to witness this spectacular display. Make sure to get outside and enjoy the show if the skies are clear!
FAQs
Q: What is a coronal mass ejection (CME)?
A: A CME is a massive burst of plasma and magnetic field that is released from the sun’s corona, the outer atmosphere of the sun.
Q: What causes the Northern Lights?
A: The Northern Lights occur when charged particles from the sun collide with Earth’s upper atmosphere, displaying a variety of colors that can be seen across parts of the Northern Hemisphere.
Q: Will the Northern Lights be visible in my area?
A: According to SWPC forecasts, the Northern Lights may be visible in parts of Minnesota, Wisconsin, and Michigan, but not in Illinois and Indiana.
Q: What is the 11-year solar cycle?
A: The 11-year solar cycle is the period of time it takes for the sun’s magnetic poles to flip, leading to the star entering a stormy state that produces more sunspots and solar activity.
