Intense Summer Heat Surges Back Into Midwest and Great Lakes Just Before 4th of July as High Pressure Dome Builds With 90s and Storms Possible
CHICAGO, IL — A major pattern change is taking shape heading into late June, as a strong dome of high pressure builds across the southeastern United States and pumps hotter, more humid air back into the Midwest and Great Lakes region just in time for the days leading up to the 4th of July holiday weekend.
High Pressure Dome Drives the Pattern Change
A powerful ridge of high pressure centered over the southeastern United States is forecast to strengthen and expand northward by the end of June, fundamentally shifting the weather pattern across a large portion of the country. This type of setup typically forces hot and humid air to surge well into the interior of the nation, replacing the comfortable conditions that have characterized recent weeks across the Midwest and Great Lakes.
The heat is expected to become well established by Tuesday, June 30, with temperatures climbing into the 90s across the region as the high-pressure dome locks into place ahead of the holiday.
Summer Sizzle Returns Just Before the Holiday
After an extended stretch of below-normal temperatures and comfortable conditions across the Midwest and Great Lakes, summer looks ready to make a strong comeback heading into the 4th of July weekend. Highs in the 90s are expected to become widespread across the region by late next week, with elevated humidity values making conditions feel considerably hotter than the actual air temperature.
The return of this heat comes after an unusually cool stretch across the region, making the upcoming pattern change feel even more dramatic for residents who have grown accustomed to mild conditions over recent weeks.
Thunderstorm Chances Accompany the Heat Return
The same type of weather pattern that drives heat across the Midwest and Great Lakes also tends to support frequent thunderstorm chances, and next week appears to be no exception. Scattered to numerous storms will be possible across the region as the heat and humidity build, raising the potential for at least a few significant storm events heading into the holiday weekend.
4th of July Plans Could Be Impacted
Residents across the Midwest and Great Lakes making outdoor plans for the 4th of July weekend should factor in both the returning heat and humidity as well as the potential for thunderstorm activity. Forecasters suggest that fireworks may not be the only thing lighting up the sky by next week.
For continuing coverage of long-range forecasts and heat events across the United States, visit SaludaStandard-Sentinel.com.
