
A rapidly-intensifying storm is expected to bring heavy snow, blizzard conditions, and icing from the Upper Midwest through the Great Lakes and Northeast. Scattered severe thunderstorms may produce severe/damaging wind gusts and a couple of tornadoes across parts of the Midwest and lower Ohio Valley through the evening. Arctic air will expand across the central and southern U.S.. Read More >
Spaceflight Meteorology Group
National Center
Y-axis is pressure in millibars. Wind barbs are located to the left hand side of the diagram with speed in knots. Temperature is solid red line in Celcius. Dashed green line is dew point in Celcius.
US Dept of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
Spaceflight Meteorology Group
Johnson Space Center / WS8
Houston, TX 77058
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