A dangerous heatwave is heading to the Midwest, with temperatures expected to soar into the upper 90s next week, bringing with it high humidity and hazardous conditions across Iowa, Illinois, and Missouri. The National Weather Service in the Quad Cities has issued a warning, predicting that the heat will intensify from July 24 through July 30, with dangerously high heat index values reaching well above 100°F, particularly from Wednesday to Friday.
High Risk for Heat Stress
The Climate Prediction Center has classified parts of eastern Iowa and western Illinois under a High Risk for hazardous temperatures from July 24–25, signaling an increased danger from the extreme heat. A broader Moderate Risk area, stretching from Kansas City to Indianapolis, has been highlighted, indicating multiple days of severe heat stress. Urban areas like Des Moines, Peoria, and St. Louis will see the worst conditions.
Overnight lows may remain uncomfortably high, potentially not dipping below 75°F, making it difficult for the body to recover and increasing the risk of heat-related illnesses. The combination of extreme temperatures and high humidity will make outdoor activities unsafe, particularly in the afternoons.
Expected Impact
The heatwave is expected to put significant strain on power grids, especially during peak demand times. Emergency officials are urging residents to limit outdoor activities during the hottest part of the day, hydrate frequently, and look out for neighbors who may be vulnerable, such as the elderly or those with pre-existing health conditions.
Outdoor events, including summer programs and sporting activities, may need to be rescheduled or moved indoors to avoid the dangers posed by the heat. Schools and other institutions will likely need to adjust their schedules accordingly.
What to Do During the Heatwave
To stay safe during the heatwave, residents are advised to:
Limit outdoor activity, especially between 11 a.m. and 5 p.m., when the heat is at its peak.
Stay hydrated and drink plenty of water throughout the day.
Wear lightweight, light-colored clothing and avoid strenuous outdoor activities.
Check on vulnerable neighbors and family members regularly, especially those without air conditioning.
If possible, stay indoors in air-conditioned environments.
Be mindful of heat-related illnesses like heat exhaustion and heat stroke, and seek immediate medical attention if symptoms appear.
With the heat and humidity expected to rise, conditions will be dangerous, and taking proper precautions will be crucial to avoid heat-related health issues. Keep an eye on local weather updates and follow emergency advice to stay safe during this extreme weather event.
