A prolonged period of heat and humidity is expected from Wednesday through Friday. Temperatures are expected to reach the mid 90s to around 100 degrees, with high humidity as dewpoint temperatures are in the upper 60s to mid 70s. Resulting heat indices of 105 to 110 degrees are possible all three days.
Due to the prolonged period of oppressive heat, the National Weather Service has issued an excessive heat warning for portions of Nebraska, Iowa, Illinois, Kansas and Missouri. An Excessive Heat Warning means that a prolonged period of dangerously hot temperatures will occur. The combination of hot temperatures and high humidity will combine to create a dangerous situation in which heat illnesses are likely. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Take extra precautions if you work or spend time outside. When possible, reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear light weight and loose fitting clothing when possible and drink plenty of water.
To reduce risk during outdoor work, the occupational safety and health administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency so call 911.