The National Weather Service (NWS) offices in Des Moines has increased its forecast to an excessive heat warning that will remain in effect from Wednesday afternoon through Saturday evening.
Temperatures are expected to reach well into the low to mid 90s each day, beginning Wednesday afternoon and continuing through Saturday afternoon, according to NWS forecasts.
With dewpoints in the low to mid 70s, apparent temperatures might reach or exceed 105 degrees each of these afternoons. Overnight temperatures will be near 75 degrees each of these mornings, the NWS predicts.
An excessive heat warning means that a prolonged period of hot temperatures is expected, and the combination of hot temperatures and high humidity will combine to create a dangerous situation in which heat illnesses are possible.
Take extra precautions if working or spending time outside. When possible, schedule strenuous activities for early morning or evening hours only.
Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose-fitting clothing when possible, and drink plenty of water.
In order to reduce the risk during outdoor work, the U.S. Occupational Safety and Health Administration (OSHA) 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. Call 911.
The NWS recommends drinking plenty of fluids, staying in an air-conditioned room, staying out of the sun and checking up on relatives and neighbors.
