This map depicts the difference between the current temperatures and the temperatures observed at the same time of the previous day.
Negative numbers signify colder temperatures today than at the same time yesterday.
Conversely, positive numbers are indicative of warmer temperatures. Areas with temperature changes of at least 5 degrees are shaded on the map. The blues and purples represent regions experiencing a drop in temperature, and yellows and reds show areas that have warmed up. The numbers on the map are displaying the 24 hour temperature change for select cities throughout the region. This map is updated once every hour as new observations are taken by the National Weather Service.