A shift to arctic air after a stretch of relatively mild temperatures could be accompanied by wintry storms starting in the second week of December, according to AccuWeather.com.
"During the week of Dec. 7-13, the arctic express will be running full throttle and should be able to send rounds of cold air from northern Canada to not only the Midwest, but also much of the Northeast and South," according to AccuWeather Meteorologist Brett Anderson.
Once the cold weather pattern arrives, it may stay cold through the middle of the month in the area.
In between rounds of arctic air, wintry storms may come calling, AccuWeather.com said.
The jet stream pattern will hold the key as to whether moisture-rich storms can strengthen and sweep northeastward, said AccuWeather, noting that even if a northwesterly flow persists with the jet stream, Alberta Clipper storms may bring quick episodes of light snow into part of the Northeast.
"However, there is some indication of the cold air retreating during the week leading up to Christmas," AccuWeather Lead Long-Range Meteorologist Paul Pastelok.
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