The warnings are a reminder that the first hard freeze of the season could hit as soon as this month for some people.

A heat dome will bring high temperatures to much of the central U.S., while storms are set to hit other parts of the country.

Add Yahoo as a preferred source to see more of our stories on Google. New NOAA Map Shows Why El Niño Odds Jumped to 75 Percent, and What It Means for Winter Today, Aug. 20, NOAA's Climate Prediction ...