National Weather Service United States Department of Commerce

Arctic Air Plunges into the Great Lakes, Northeast and Mid-Atlantic

Arctic air dropping through the northern and eastern U.S. and a storm off the east coast will bring periods of snow, very cold wind chills and hazardous traveling conditions from the Upper Great Lakes to the Northeast. Meanwhile in southern California, Santa Ana winds will decrease but hot, dry air will remain over the area with elevated fire weather conditions. Read More >

Lows tonight will be in the 30s to near 40 degrees with clear skies through the night. Winds will shift from the northwest to the southwest overnight, remaining around 5 mph.
Wednesday will be warm and breezy across North and Central Texas. The warm, breezy and dry conditions will lead to an elevated fire weather threat. Highs will be between 10-15 mph above normal.

 
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Automatically generated image showing areas of 0-6km vertical shear.

 

Thumbnail of an automatically generated image showing areas of 0-6km vertical shear. Thumbnail of an automatically generated image showing areas of 0-6km vertical shear. Thumbnail of an automatically generated image showing areas of 0-6km vertical shear.
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Shear (0-6Km) 

The 0-6 km shear vector.  Values generally greater than 40 knots are supportive of supercells, although in high instability environments this can be as low as 30 knots. 

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