The North Star

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Naperville is freezing cold, and the polar vortex is to blame

With the anticipation that next week will have temperatures dropping well below zero degrees Fahrenheit, NNHS students may wonder why this phenomenon is occurring, and whether this will bring a cold day home from school.

Photo by Catrina Kujawa
Estimates according to The Weather Channel as of January 25

What is causing this? It has to do with the polar vortex. The polar vortex is a large area of low pressure and cold air over the North and South pole, circulating air counter-clockwise. When something disrupts it, the vortex can shift or expand. Due to the large amount of warmer Pacific air Naperville had experienced, this shift in the polar vortex took full effect. Air masses are now being sent south from the North pole, forcing cold Arctic air across Canada and into the Midwest of the United States. However, it takes a long time to feel the effects of a shift in the polar vortex because it is so high in the atmosphere. In late December, the vortex actually broke into three swirling air masses.

The polar vortex itself doesn’t seem to be that new or irregular, and the National Weather Service notes similar outbreaks occurring in 1977, 1982, 1985 and 1989. In the winter of 2014-2015, Naperville experienced a prolonged period of cold following a rather warm beginning of the season. At that time, Naperville school districts closed schools because the weather temperatures dropped to a low of minus 6 degrees Fahrenheit on January 8, 2015. However, it is currently unclear whether students will have their cancelled-school-day wishes granted for this upcoming week.

In the meantime, bundle up, stay inside and be safe.

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About the Contributors
Harpreet Dhadde, Staff Writer

Harper is a junior at Naperville North. She enjoys spending her time singing, dancing and playing the piano. She is a member of the NNHS show choir, High...

Catrina Kujawa, Staff Writer

Catrina Kujawa has joined the news team as a senior at Naperville North. She is ready to take on any role to help out her newsroom teammates. She’s not...

1 Comment

One Response to “Naperville is freezing cold, and the polar vortex is to blame”

  1. Rajjit Bal on January 30th, 2019 1:53 pm

    Good information here. Thanks

If you want a picture to show with your comment, go get a gravatar.




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Naperville is freezing cold, and the polar vortex is to blame