Weather in 5 1/18/2025 Winter Storm Warnings and Winter Weather Advisories cover a large portion of the Northeast, Mid Atlantic States and the Appalachians. Winter Storm Watches are likely to go up from the Texas Gulf Coast eastward to the Central Gulf coast as a winter storm forms in the Western Gulf of Mexico for later Monday into early Wednesday. Bitter cold is spreading out of Canada into the Plains, Midwest, the Eastern US as well as the Deep South.