Heat Advisory in effect through Monday – stay hydrated, check on elderly neighbors – you know the drill

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The Dupont Splash Pad is open for cooling off. See hours below. File Photo/Carol Robidoux

MANCHESTER, NH – The National Weather Service is forecasting an extended period of hot temperatures and high humidity beginning Saturday, July 18 through at least Monday, July 20. Dangerously hot conditions are expected to begin on Saturday and persist through Monday with afternoon high temperatures reaching well into the 90s. Humidity will also increase through Monday, which will allow afternoon heat indices to reach the upper 90s to a few degrees above 100 each afternoon. These conditions may pose a health danger to the public, especially young children and elderly adults. Please pay special attention to the following information.

People tend to suffer heat-related illness when the body’s temperature control system is overloaded. Usually, the body cools itself by sweating, but in some cases sweating is not enough. When that happens, a person’s body temperature rises rapidly. Very high body temperatures can damage the brain and other vital organs.

Several factors affect the body’s ability to cool itself during extremely hot weather. When the humidity is high, sweat will not evaporate as quickly, preventing the body from releasing heat quickly. Other conditions that adversely affect temperature regulation include old age, obesity, fever, dehydration, heart disease, poor circulation, sunburn, and drug and alcohol abuse.

Understanding the inherent danger of extreme heat, health and emergency management officials are making the following recommendations:

Drink more water than you think you need.


Increase how much you drink regardless of your activity level. During heavy exercise in a hot environment, drink 2-4 glasses (i.e. 16-32 ounces) of cool fluid each hour. Plain water is the best fluid to drink since it is the easiest for your body to absorb. Don’t wait until you’re thirsty to drink more fluids. Remind others to drink enough water.

Avoid drinking very cold beverages (they can cause stomach cramps) and avoid alcoholic and caffeinated beverages (they make you lose more fluid). During hot weather, you will need to drink more liquid than your thirst indicates. This is especially true for persons over the age of 65.

(NOTE: If your doctor has prescribed a fluid-restricted diet or diuretics, you need to ask your doctor how much you should drink.)


Heavy sweating removes salt and minerals from the body. These are necessary for you and need to be replaced. The easiest and safest way is to eat a balanced meal and drink fruit juice or a sports beverage. Do not take salt tablets unless directed by your doctor. If you are on a low-salt diet, ask your doctor what to eat or drink, especially before drinking a sports beverage.


Wear lightweight, light-colored, loose-fitting clothing. In the hot sun, a wide-brimmed hat will provide shade and keep the head cool. Use sunscreens that have a sun protection factor (SPF) of 15 or higher. Apply the sunscreen 30 minutes before going outdoors and reapply according to package instructions. Sunscreen protects you from sunburn, which can affect your body’s ability to cool itself and causes a loss of body fluids.


The best way to beat the heat is to stay in air-conditioned areas. If you do not have an air conditioner, consider visiting a shopping mall for a few hours. ***It is important that all people who are out in public wear a mask or face covering and maintain proper social distancing to protect each other from potential exposure to COVID-19***.

For other recreational ideas and resources, please visit the city’s Recreation page here.

Note: Some options may not be available due to COVID-19, please call ahead

While an electric fan may be useful to increase comfort and to draw cool air into your home at night, it should not be your primary cooling device during a heatwave. When the temperature is in the high 90s or above, a fan will NOT prevent heat-related illness. Taking a cool shower or bath is also an effective way to cool off.


If you must be out in the heat, plan your activities so that you are outdoors before 10 a.m. or in the evening after 6 p.m. While outdoors, rest frequently in a shady area. Resting periodically will give your body’s thermostat a chance to recover. If exertion in the heat makes your heart pound and leaves you gasping for breath, STOP all activity; get into a cool area and rest. Also, you should rest if you become lightheaded, confused, weak or faint.


When working in the heat, monitor the condition of your co-workers and have someone do the same for you. Heat-induced illness can cause a person to become confused or lose consciousness.

If you are 65 years or older, have a friend or relative call to check on you twice a day during a period of extended heat. If you know any people in this age group, check on them at least twice a day. **Avoid in-person visits unless absolutely necessary and in doing so, please wear a cloth mask and wash your hands**.

Those at greatest risk of heat-related illness include: (1) infants up to 4-years of age; (2) people age 65 or older; (3) people who are overweight; (4) people who overexert during work or exercise; and (5) people who are ill or on certain medications.


Avoid hot foods and heavy meals – they add heat to your body. Do not leave infants or pets in a parked car. Dress infants in cool, loose clothing and make sure they drink enough liquids. Give your pet(s) plenty of freshwater and leave the water in a shady area. NEVER leave a child or pet in a vehicle, not even for a minute!

Stay updated on local weather forecasts so you can plan activities safely when it’s hot outside. Check local media outlets for heat advisories and warnings issued by the National Weather Service. Sign up for weather alerts to your phone or email by visiting: https://www.weather.gov/subscribe (Note: These are third-party apps and some may not be free.)


Both of these ailments occur when your body becomes unable to control its temperature; your body’s temperature rises quickly, the sweating mechanism fails, and the body is unable to cool down. If emergency treatment is not taken quickly, death or permanent disability can occur. Warning signs of heatstroke and heat exhaustion can include hot dry skin, rapid pulse, throbbing, headache, dizziness, nausea, confusion, paleness, and unconsciousness. Call 911 should these symptoms occur.


Some of the City of Manchester’s public swimming facilities are, or soon will be open. The daily hours of operation are as follows (weather permitting). For the latest updates on the status of these facilities please visit Parks and Rec.

Crystal Lake Public Beach

12M-8 p.m.*
Limited to 250 people

Dupont Splash Pad.

207 Mason St.
11 a.m.- 7 p.m.
Reduced capacity limits are in place

Hunt Pool 

297 Maple St.
1-5 p.m. and 6-8 p.m.
Limited to 200 people

*Crystal Lake Beach will be staffed with checkers at the gate and lifeguards. When lifeguards are not on duty, the beach is posted “swim at your own risk.”

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Manchester Health Department