Heat Waves

How hot is dangerously hot?

The National Weather Service uses a Heat Index, measured in degrees Fahrenheit, to describe how hot it actually feels when humidity is combined with air temperature. Heat alert procedures may be issued when the Heat Index is expected to reach between 105°F and 110°F for at least two consecutive days.
Children, older adults, and people with certain health conditions are more sensitive to extreme heat and may feel its effects more quickly. If you are working outdoors, be sure to follow the safety tips below to help prevent heat-related illness.

How can I stay safe during a heat wave?

Reduce, reschedule, or avoid strenuous activities, especially during the hottest part of the day. When possible, plan outdoor work for the cooler morning or evening hours.
Drink plenty of water throughout the heat wave. Avoid alcohol and caffeine, since they can make it harder for your body to cool itself.
Spend a few hours each day in air conditioning if you can. If your home is not cool, consider visiting a store, restaurant, or other air-conditioned location to limit your heat exposure.
Keep your home as cool as possible and avoid closed-off rooms. Even fans or open airflow can help your body cool by allowing sweat to evaporate more effectively.