Current Watches, Warnings and Advisories for St. Charles (MOC183) Missouri Issued by the National Weather Service


Excessive Heat Warning Excessive Heat Warning - St. Charles (Missouri)

Updated:Sun 17-Jun-18 03:40pm CDT
Effective:Sun 17-Jun-18 03:40pm CDT
Expires:Mon 18-Jun-18 08:00pm CDT

Areas affected: Jefferson; St. Charles; St. Louis; St. Louis City
Instructions: An excessive heat warning means that a prolonged period of dangerously hot temperatures and high humidity will occur. In addition, nighttime conditions will remain warm and muggy providing little chance for relief. This combination will create a dangerous situation in which heat-related illnesses are likely, especially for those living in un-air conditioned homes or apartments. People in the warning area are advised to avoid poorly ventilated areas and prolonged work in the sun. Use air conditioning in your house or apartment if it is working correctly. If you do not have air conditioning, keep your house or apartment well ventilated with fans, and try to spend some time in an air conditioned environment to give your body a break from the heat. Take extra precautions if you work or spend time outside. When possible, reschedule strenuous activities to the 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, call 9-1-1 immediately. Where`s baby? Look before you lock! Young children and pets should never be left unattended in vehicles under any circumstances. This is especially true during warm or hot weather when car interiors can reach lethal temperatures in a matter of minutes. People in the saint louis metropolitan area can get information about cooling centers or energy assistance related to the excessive heat by calling the united way of greater saint louis at 800-427-4626, or if calling from a land line phone dial 2-1-1. You can also call cool down saint louis at 314-241-7668.

Message summary: ...excessive heat warning remains in effect until 8 pm cdt monday...
* timing...a dangerous combination of heat and humidity will continue through at least early monday evening. Little relief from the heat and humidity is expected during the night.
* heat index values...around 105 due to temperatures in the mid 90s, and dewpoints in the lower 70s.
* impacts...the combination of hot temperatures and high humidity will lead to an increased risk of heat-related stress and illness. The very young, the elderly, those without air conditioning, and those participating in strenuous outdoor activities will be the most susceptible. Also, car interiors can reach lethal temperatures in a matter of minutes.
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Source: NWS Watches, Warnings or Advisories for zone MOC183