A severe heat wave is expected to persist over the Great Lakes, Ohio Valley, and portions of the Northeast into the weekend, with temperatures set to challenge daily, monthly, and even all-time records.
The National Weather Service has issued warnings as heat intensifies across these regions, posing significant health risks.
The heat wave is forecast to continue from Thursday, June 20, through Saturday, June 22, 2024. Afternoon highs and warm overnight lows will contribute to extreme heat conditions, with heat index readings expected to peak between 100 and 105 degrees Fahrenheit in many locations. Daily records, monthly records, and potentially all-time temperature records are under threat due to this heat wave.
In New Jersey, the heat wave will bring intense and potentially dangerous weather conditions over the coming days.
The Garden State is expected to experience some of the highest temperatures in the region, with afternoon highs soaring into the upper 90s and potentially reaching triple digits in some areas.
The heat index, which factors in humidity, could make it feel even hotter, with values between 100 and 105 degrees Fahrenheit.
Residents are urged to take precautions as heat dangers escalate, particularly for those without reliable access to air conditioning. The heat index, which combines air temperature and humidity, will reach dangerous levels, increasing the risk of heat-related illnesses.
Tropical Storm Alberto, currently centered over the southwestern Gulf of Mexico, is heading west towards northern Mexico. Heavy rain bands from Alberto have already delivered close to 10 inches of rain near the mid-Texas coast. As Alberto moves, the heavy rain and flooding threats in South Texas are expected to gradually decrease.
Flooding threats are diminishing in South Texas as Alberto dissipates, but heavy rain and flash flooding concerns are increasing across the northern Plains to the upper Midwest, with scattered thunderstorms potentially causing localized flooding from the southern High Plains to the Four Corners.
A high-pressure system is bringing cooler air from Canada, offering temporary relief to the northern tier states. However, a new system exiting the central Rockies will trigger heavy rain and severe storms across the northern Plains to the upper Midwest starting tonight.
Areas from eastern South Dakota, across southern Minnesota, into western Wisconsin face a slight to moderate risk of excessive rainfall through Saturday morning. Scattered thunderstorms are also expected near the Great Lakes and Northeast, with marginal to slight risks of severe storms mainly due to severe wind threats and some potential for hail.
In New England, cooler air is expected to dip southward by Friday, improving conditions slightly. However, temperatures in the 90s and higher heat indices will persist in the Ohio Valley and Mid-Atlantic. Meanwhile, in the Western U.S., temperatures are set to rise above normal, with triple-digit highs forecast for California’s Central Valley and the Great Basin by Saturday.
The National Weather Service advises those in affected areas to stay hydrated, avoid strenuous activities during peak heat hours, and seek air-conditioned environments. Residents should also check on vulnerable individuals, such as the elderly and those with pre-existing health conditions.
This unprecedented heat wave underscores the importance of preparedness and awareness as extreme weather patterns continue to challenge communities across the United States. For more information and updates, visit the National Weather Service website or follow local weather advisories.