The heat index is a measurement that combines the effects of heat and humidity. It tells how hot it really feels when the effects of humidity are added to high temperatures. When heat and humidity combine to reduce the amount of evaporation of sweat from the body, outdoor exercise becomes dangerous even for those in good shape.
In the District, the Heat Emergency Plan is activated when the heat index reaches 95 degrees.
In the event of extreme heat, you should take the following precautions:
–Stay indoors as much as possible.
–Turn on the air-conditioner or fan.
–DO NOT leave children or pets in vehicles.
–Drink plenty of water.
–Wear light-colored, lightweight and loose-fitting clothes.
–Apply sunscreen at least 20 minutes before going outside. SPF 15-30 is best.
–Limit exposure to the sun, especially between 10 AM and 3 PM when it is strongest
–Watch for symptoms of heat cramps, heat exhaustion and heat stroke.
Visit one of the District’s “Cooling Centers” located throughout the city, if you do not have access to a cool-temperature location.
Wow! Tons of rain in the past 24 hours and unfortunately tons more to come in the next 24 hours. A high risk of flo… https://t.co/Rdlgib2WI01 hour ago by WeatherNation
More videos coming in from Mississippi showing the dangerous flooding conditions! Several inches of rain fell int… https://t.co/QJpFZGbO4l1 hour ago by WeatherNation
Severe storms roll over parts of Mississippi this evening! More severe weather weather is expected tonight and to… https://t.co/B1s7v9dPgA2 hours ago by WeatherNation
Nearly 3 feet of snow fell in just one day in Flagstaff, Arizona where a 100 year old record was broken. This amaz… https://t.co/niNNlx18983 hours ago by WeatherNation
BLIZZARD WARNINGS issued for parts of Kansas and Nebraska. Snow and strong wind gusts on the way for the Plains on… https://t.co/TtWDz2x0hB5 hours ago by WeatherNation