The Weather Prediction Center (WPC) has released 2 sets of messages related to the ongoing Arctic blast and an upcoming winter storm expected to affect the Northeast on January 19 and 20. The Arctic cold front is set to bring dangerously low temperatures across large portions of the country while the winter storm will produce heavy snowfall along the I-95 corridor.
A powerful Arctic air mass will begin moving southeast from the Rockies on Friday, January 17, 2025, bringing extreme cold and hazardous wind chills across multiple states. The Arctic outbreak will cause minimum wind chills to drop as low as -34 °C (-30 °F) in parts of Montana, North Dakota, and Minnesota.
Below-freezing wind chills will extend by January 19 into Texas, Oklahoma, and the lower Mississippi Valley. The National Weather Service (NWS) warns that these conditions pose a high risk of hypothermia and frostbite.
Wind chills below -18 °C (0 °F) will spread into the southern Plains and Ohio Valley by January 19 and will persist into January 21. The Arctic air mass will remain entrenched along the Gulf Coast and southeastern U.S. through January 23.
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