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NWS Bismarck Profile picture
NWS Bismarck
@NWSBismarck
Official Twitter account for the National Weather Service Bismarck, North Dakota. Details: https://t.co/j0C8tY5olt
Feb 17, 2023 • 9 tweets • 4 min read
You may have seen in the news that a Sudden Stratospheric Warming (SSW) event is occurring - what does that mean, and what are the potential impacts for North Dakota? A thread (1/9):

#NDwx The stratosphere is the layer of the atmosphere extending from ~6 miles to ~31 miles above the Earth’s surface. The stratospheric polar vortex (we bet you've heard of the polar vortex!) resides in this area, and can significantly influence weather in the mid-latitudes. (2/9) Illustration showing the different layers of the atmosphere.