The sweltering heat felt in the western US heads northeast with dangerous temperatures putting millions of Americans at risk. The National Weather Service warned Monday that it's coming heat dome “could see temperatures above the century mark” as it is expected to break records in several cities.
The National Weather Service says this will be the first significant heat wave of the season, with “the warmest temperatures of the summer” affecting the Midwest, Great Lakes, Northeast and Mid-Atlantic. For some areas, temperatures will be so intense that “the longevity of the predicted dangerous heat … has not been experienced in decades.”
An “extreme” level four risk is forecast for cities in Illinois, Missouri, Indiana, Michigan, Ohio, Pennsylvania, New York and Massachusetts, the service says, meaning it is “rare extreme heat and/or long duration with little or nothing.” overnight relief.” At this level, the National Weather Service says anyone without effective cooling or adequate hydration is at risk. Maryland and Washington, DC are expected to be at “high” risk.
Large cities could see higher temperatures than surrounding areas due to the heat island effect, endangering many who do not have access to shade or cooling systems.
Heat risk from the National Meteorological Service
CBS News senior producer David Parkinson said “hot heat is the name of the game this week.”
Chicago will hit peak heat Monday with an actual high of 97 degrees Fahrenheit, while Cleveland, Ohio, and Rochester, New York, are expected to tie record highs of 94 degrees Fahrenheit, he said. At least 24 more records are expected to be broken on Tuesday, including in Vermont, New York and Washington, DC, while another three dozen will be broken on Wednesday.
At least 265 million people will be exposed to temperatures above 90 degrees Fahrenheit this week, Parkinson said, a temperature threshold that can be dangerous and lead to heat related illnesses. Parkinson said 22 million will be subjected to temperatures above 100 degrees.
These maps show what to expect across the region.
Temperature forecast for Tuesday
National digital forecast database
NWS forecasters expect much of the Great Lakes, including Illinois, Indiana, Michigan, Wisconsin and Ohio, as well as surrounding states, to see “significant” and “extreme” heat risks Tuesday, leaving people without hydration systems and suitable cooling susceptible. to heat-related illnesses.
Temperature forecast Wednesday
National digital forecast database
On Wednesday, the National Weather Service predicts that essentially all of the eastern United States and much of the south-central US will have temperatures of at least 90 degrees Fahrenheit. Some smaller areas will see triple digit temperatures in the Northeast and Southwest.
“Wednesday afternoon, some locations in inland New England could see temperatures above the century mark, breaking daily records in certain locations,” the National Weather Service says. “In the Four Corners region, critical fire danger conditions are forecast today under persistently dry conditions fueled by strong winds with the approach of the steep front.”
Temperature forecast for Thursday
National digital forecast database
Thursday is expected to be one of the worst days for New England, with even Maine seeing temperatures in the 90s. Temperatures in Boston will climb into the triple digits, while temperatures in New Hampshire are expected to top 100º F. Little relief is expected from overnight temperatures in many places, including New York, where forecasters say lows will reach the mid-70s.
Even in areas where temperatures don't rise enough to warrant an advisory, forecasters in New York say heat index values will be high enough to “use caution.”
