Notice October 25, 2024: The St. Mary’s County Health Department (SMCHD) phone system has returned to normal operations. Community members can contact SMCHD at 301-475-4330.

Extreme Heat Preparedness

Extreme heat is defined as a period of high heat and humidity with temperatures above 90 degrees for at least two to three days. In extreme heat your body works extra hard to maintain a normal temperature, which can lead to death. Extreme heat is responsible for the highest number of annual deaths among all weather-related hazards. Older adults, children, and people who are overweight are most at risk for illness due to extreme heat

Stay informed – Check for emergency weather notices on local sites and monitor the weather. 

Know the Signs of Heat Illness

Heat illness can affect people in a number of ways. It is important to know the signs of heat-related illness and ways to respond. If you are sick and need medical attention, contact your healthcare provider for advice and shelter in place if you can. If you are experiencing a medical emergency call 9-1-1.

Heat Stroke

Signs
  • Red, hot, or dry skin with little to no sweat
  • Rapid pulse
  • Dizziness, confusion, or unconsciousness
How to respond
  • Call 9-1-1 or get to the nearest hospital
  • Use whatever methods you can to cool down
  • Do not give the person anything to drink

Heat Cramps & Exhaustion

Signs
  • Typically in stomach, arms, and legs
  • Heavy sweating
  • Paleness
  • Tiredness and weakness
  • Dizziness
  • Headache
  • Nausea/vomiting
  • How to respond
How to Respond
  • Go to a cooler area
  • Remove excess clothing
  • Take small sips of water or a sports drink
  • Call your healthcare provider if symptoms get worse or last more than an hour
Beat the Heat: Extreme Heat Heat Related Deaths are preventable. What: Extreme heat or heat waves occur when the temperature reaches extremely high levels of when the combination of the heat and humidity causes the air to become oppressive. Who does it affect: Children, Older adults, Outside workers, People with disabilities. How to avoid: Stay hydrated and avoid sugary beverages. Stay cool in an air conditioned area. Wear lightweight, light colored clothing. Heat Alerts: Heat outlook is excessive heat in 3 to 7 days. Heat watches is excessive heat in 12 to 48 hours. Heat warning or advisory is excessive heat event in next 36 hours.

Be Prepared for a Heat Emergency

  • Do not rely on fans – fans create a false sense of cooling off by circulating air, but do not actually reduce body temperature
  • Identify local places you could go to cool off such as libraries and stores
  • Monitor local emergency announcements in case a Community Cooling Center is opened
  • Prepare your living space by
    • Covering windows with drapes or shades
    • Weather-stripping doors and windows
    • Adding insulation to keep the heat out
    • Install window air conditioners

Stay Safe During Extreme Heat

  • Do not leave children or pets in a closed car 
  • Take cool showers or baths
  • Wear loose, lightweight clothing
  • Find shade when outdoors or wear a hat with a wide brim that shades your face
  • Stay hydrated
  • Use your oven less to avoid adding additional heat to the home
  • Avoid high-energy activities and outdoor work, especially midday when it is hottest outside
  • Consider the safety of your pets, and check on family, friends, and neighbors

Additional Resources

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