A new heat dome is on the move, weather forecast warns
Record-Breaking Heat Wave Sweeps Across United States as Temperatures Soar
Western and Central Regions Face Intense Heat Wave
A new heat dome is currently shifting across the nation, bringing with it the potential for unprecedented temperatures during the weekend of July 11. According to meteorologists, portions of the United States could experience some of the hottest conditions ever recorded in their respective regions. This atmospheric phenomenon has created a blanket of hot air that is trapping warmth and pushing temperatures to extraordinary levels across multiple states.
AccuWeather senior meteorologist Alex Sosnowski outlined in an online forecast that the western and central portions of the country are poised to encounter a widespread and significant heat wave. The National Oceanic and Atmospheric Administration's Weather Prediction Center corroborated this assessment in their own online forecast, noting that the heat wave is expected to develop and intensify from the Intermountain West region all the way to the northern Plains. The system is moving steadily eastward, affecting millions of residents along its path.
By the afternoon of Saturday, July 11, forecasters anticipate that triple-digit high temperatures will become widespread across multiple states. The situation is projected to worsen through the weekend, with local temperatures possibly reaching the 110-degree mark by Sunday afternoon, July 12. This surge in heat is expected to produce numerous daily high, monthly, and even all-time temperature records, according to the Weather Prediction Center. Communities across the affected regions are preparing for extended periods of intense heat.
Eastern United States to Follow with Extended Heat
While the western and central regions bear the brunt of the initial heat dome, forecasters indicate that parts of the East should prepare for another round of 90–100-degree temperatures following the weekend. AccuWeather meteorologists predict that the extreme heat threat currently building across the northern Plains will expand eastward across the nation as the atmospheric system moves toward the Midwest and Ohio Valley. This progression will bring a period of dangerous heat and humidity to the eastern United States beginning Tuesday, July 14, while extreme heat continues across the central and western U.S.
High humidity will increase the risk of heat-related illnesses despite air temperatures being somewhat lower than the July 4th week heat wave. Residents in the eastern states are advised to take precautions as the combination of heat and moisture creates uncomfortable and potentially hazardous conditions. Emergency management officials in several states have begun preparing cooling centers and extending operating hours at public facilities to accommodate those without adequate air conditioning.
Record-Breaking Temperatures Expected in Multiple Cities
High temperatures may not just shatter records for a particular day, but they could approach, tie or top the hottest temperatures on record for some locations in the Rockies and northern Plains, Weather.com said. The intensity of this heat event is remarkable, with several cities potentially experiencing their warmest conditions in decades. Meteorologists are closely monitoring the situation as it unfolds across the continent.
Specifically, Salt Lake City could flirt with its all-time record of 107 degrees set on five different days, most recently on July 17 and Sept. 7, 2022, according to Weather.com. The city has a history of extreme heat events, but this current episode could rival its most memorable temperature highs. Local weather stations are tracking the progression carefully to provide accurate updates to residents.
Billings, Montana, could see its first high in the 110s in 92 years of records dating to 1934, Weather.com said. That's just one of almost two dozen locations in eastern Montana and Wyoming that could flirt with their all-time record highs. These historic temperature milestones underscore the significance of this weather event and its potential impact on communities across the region.
Health and Safety Concerns Rise
Extremely hot daytime highs combined with potentially record-warm overnight lows will result in increasing heat stress, leading to widespread major to locally extreme heat risk. "This heat wave will quickly become dangerous to anyone without adequate cooling or hydration," the WPC said. The combination of high daytime temperatures and elevated nighttime lows means that bodies have limited opportunity to recover from the heat, increasing the risk of heat exhaustion and heat stroke.
In many areas of the Plains, this heat will be especially dangerous as June temperatures have limited heat acclimation, the National Weather Service said. "Remember to protect yourself by limiting outdoor activity, hydrating, and ensuring access to A/C or cooling centers. Never leave children or animals unattended in vehicles!" Health officials are urging residents to check on elderly neighbors and vulnerable community members during this critical period. Emergency services across the affected regions are preparing for increased call volumes as the heat wave continues to unfold.