Large parts of the United States are facing a dangerous mix of extreme weather this week, with intense heat, severe thunderstorms, flash flooding and an elevated risk of wildfires expected across several regions.
Forecasters are warning that temperatures will remain dangerously high in parts of the West and central United States, while dry conditions and gusty winds could increase the threat of fast-moving wildfires. At the same time, humid air across the Midwest, Great Plains and East is expected to fuel powerful thunderstorms and periods of heavy rainfall.
The combination of extreme heat and severe storms is creating multiple weather hazards at once, with millions of people potentially affected.
Dangerous heat spreads across the West and Central U.S.
Temperatures reached the upper 90s and triple digits across parts of the western United States over the weekend, and forecasters expect the heat to continue into the middle of the week.
Some locations could see temperatures climb above 110 degrees Fahrenheit, while heat index values in parts of Kansas and Missouri could reach approximately 107 degrees.
Heat warnings have also been issued across parts of Arizona, California and Nevada as authorities urge residents to take precautions against prolonged exposure to dangerous temperatures.
The heat is expected to expand toward the central Rockies and Great Plains before gradually shifting eastward.
Wildfire danger rises in the Northwest
Hot and dry conditions are increasing wildfire concerns across Washington, Oregon, Idaho and Wyoming, as well as parts of Kansas, Oklahoma and Texas.
Meteorologists say dry vegetation combined with occasional strong winds could allow existing fires to spread rapidly and create favorable conditions for new fires to start.
Thunderstorms could add another complication. Lightning across parts of Colorado, Utah, Nevada and California could potentially ignite additional fires in areas already suffering from dry conditions.
Communities near existing fires are also dealing with air-quality concerns, particularly in parts of the Northwest where smoke has already affected the atmosphere.
Severe storms threaten the Midwest and East
While the West deals with heat and wildfire threats, areas farther east are preparing for severe thunderstorms and possible flash flooding.
The Great Plains, Midwest and parts of the East Coast could experience heavy rainfall, damaging wind gusts and strong thunderstorms through Tuesday.
Forecasters are particularly watching parts of Ohio, Kentucky, West Virginia and southwestern Pennsylvania, where heavy rainfall could lead to dangerous flash flooding.
Some locations could receive several inches of rain in a short period, increasing the risk of rapidly rising water and dangerous travel conditions.
Major metropolitan areas including Chicago, Detroit and Pittsburgh could also see disruptions as storms move through during busy commuting periods.
Europe faces another dangerous heat wave
The extreme weather is not limited to the United States.
Western and central Europe are also preparing for another period of intense heat, with France, Spain, Italy and other countries facing temperatures well above normal.
Parts of Spain are expected to remain above 95 degrees Fahrenheit, while temperatures in southern France could approach or exceed 100 degrees.
The prolonged heat has already dried vegetation and worsened drought conditions in parts of Europe, increasing concerns about additional wildfires.
France and Spain have experienced major fires this summer, and authorities are closely monitoring conditions as another wave of extreme heat moves across the region.
Heat and wildfire risks continue to grow
Experts say prolonged periods of extreme heat can place additional pressure on emergency services, increase health risks and worsen drought conditions.
Older adults, young children and people with existing health problems are among those considered particularly vulnerable during prolonged heat events.
The combination of high temperatures, dry vegetation and strong winds can also create dangerous conditions for firefighters battling wildfires.
Meanwhile, sudden thunderstorms can bring a different set of risks, including flooding, lightning and destructive winds.
With several weather threats developing simultaneously, authorities are urging residents to monitor local forecasts and follow warnings issued by emergency and weather agencies.
The coming days are expected to remain challenging across parts of the United States and Europe as forecasters continue tracking the heat, storms, flooding and wildfire conditions.
