A dangerous and potentially deadly heat wave has moved into the Midwest, and the hot temperatures are also spreading toward the Northeast to begin this week.
Daily record highs were set in a few Midwest cities on Sunday, including Cleveland (94 degrees), Alpena, Michigan (96 degrees), and La Crosse, Wisconsin (98 degrees).
This sweltering heat has prompted heat advisories to be issued from the Midwest to the Northeast. An excessive heat warning has also been posted for the Davenport, Iowa, Cedar Rapids, Iowa, St. Louis and Chicago areas.
Residents of those cities will be at risk of heat-related illnesses and are advised to keep their homes well-ventilated and themselves well-hydrated.
With the jet stream digging southward into the Pacific Northwest, a ridge of high pressure has set up over the Ohio Valley and mid-Atlantic, resulting in a widespread area of heat and humidity.