The weather patterns across North America are set for a significant shift. The Eastern United States, which has been gripped by intense Arctic air and snow, will soon see relief as the polar vortex retreats further north. Meanwhile, the West Coast and Rockies are poised for much-needed snowfall after experiencing unseasonably warm temperatures.
Western Winter Intensifies as Polar Vortex Retreats
Starting mid-February, a new jet stream setup will bring numerous storms to the West Coast and the Rockies. This change is expected to alleviate the snow drought that many mountain ranges have faced.
Current Weather Conditions
- The eastern U.S. has been under frigid conditions due to Arctic air influx.
- The West Coast has recorded temperatures 15 to 20 degrees above average.
- Many mountain areas in the West are facing substantial snow deficits, crucial for summer water supplies.
Impact of the Polar Vortex
The polar vortex typically resides over the poles, containing the coldest air. Recently, however, it has been displaced, affecting weather patterns across the U.S. As the lobe of cold air shifts northward, eastern states will experience less severe winter conditions.
The jet stream’s new trajectory will facilitate storm systems that carry moisture into the West. This pattern will provide much-needed snow to support water supplies for agriculture and drinking as the region grapples with long-term drought.
Statistical Insights
- Mountain snowpacks are essential for summer water.
- Some areas in the Northern Rockies are experiencing a deficit of 50 to 90 percent below the seasonal snow average.
- Salt Lake City has recorded only 0.1 inches of snow for the season, a significant shortfall compared to the seasonal average.
As the jet stream continues to adapt, weather forecasts predict substantial snowfall for affected regions within the next ten days, ushering in a new winter phase for the West while maintaining milder temperatures for the East.
