A strong cold front is sweeping across the country and will continue to do so through the upcoming holiday. The most dramatic changes will occur across the Central and Southern Plains where temperatures will be 30-40 degrees colder on Wednesday than today. Rain and thunderstorms will become more widespread Wednesday along and ahead of the front and will continue into Thanksgiving day from the Gulf Coast into New England. Some of the moisture will overrun the cold front which will bring a chance of snow showers behind it from the Central Plains northeastward into the Great Lakes region. Overall snow amounts will not be extremely impressive behind the front and will only amount to a few inches in most locations, though amounts can be locally heavy where more moisture is available in the colder airmass. Light snow showers will continue across the Front Range of the Rockies in Colorado and southern Wyoming due to upsloping conditions behind the front.
The primary travel headache on Wednesday will be the persistent wet weather and storms along the frontal boundary. For the major cities across the Northeast, this storm will bring a steady rain as warm, moist air is pulled north across the region. Rain will be mixed with or change over to snow across upstate New York and northern Maine. Expect airport delays in many hubs east of the Rockies on Wednesday, especially for Chicago, Kansas City, Denver and Saint Louis where there is a greater threat of accumulating snowfall.
Keep up to date with the latest weather conditions, advisories and airport delays for the following major US cities likely to be affected by this system: