There are excessive heat warnings from the midwest to east coast due to high humidity levels.
As of 1 p.m., Southeastern St. Lawrence County was still under a HEAT ADVISORY.
Sunday was the hottest day of the year so far and the high temperatures are expected to stick around through at least the 4th of July, forecasters said. Factoring in humidity, the heat index will range from the upper 90s to 110, with the higher heat index values for the previously mentioned areas that will see highs near 100.
Meteorologists say the intense heat will be caused by a ridge of high pressure - or a "heat dome".
The National Weather Service issued the advisory, which starts at 11 a.m Saturday and runs until 9 p.m. Saturday night, includes Wake, Durham, Nash, Johnson, Edgecombe, Franklin, Lee and Moore counties.More news: Multiple People Shot in Maryland Newsroom
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People are encouraged to drink plenty of fluids, stay in an air-conditioned room, stay out of the sun and check on relatives and neighbors. Heat index values will soar into the 100s, with localized 105-degree heat-index values in urban areas of the Northeast.
Never leave children or pets alone in vehicles. Highs will be in the upper 80s. As we transition towards the Fourth of July, hot conditions are forecast to remain in West Michigan, with temperatures around 90 most of next week. Heat exhaustion is when someone might feel faint, have excessive sweating, be cool and pale with clammy skin, feel nauseous, have a rapid or weak pulse and have muscle cramps.
This heat can create health problems for some, so here are some tips that can be used to look out for during the first official heat wave of the summer. Cool down with water activities. Also, 911 should be immediately called, as heat stroke is a medical emergency.
Take extra precautions if you work or spend time outside.
Be sure to wear loose-fitting, lightweight clothing and carry water with you when you go out for a long excursion.