Dangerous northeast heat wave: Going to the fair with the hot weather
Dangerous northeast heat wave: Going to the fair with the hot weather

Dangerous northeast heat wave: Going to the fair with the hot weather.

A significant heat wave will build and air quality will deteriorate over the northeastern United States this weekend and it is likely to last into July Fourth.

In the northern part of the nation, a heat wave is defined as three days in a row with high temperatures at or above 90 F.

There is the potential for many locations to have highs well in the 90s over a three- to five-day stretch.

“While heat waves are common around Independence Day, this pattern could bring the hottest early July weather for such a broad area of the Northeast since 2012,” according to AccuWeather Meteorologist Evan Duffey.

Pools, beaches, fans and air conditioners will be abuzz with activity as the major summer holiday approaches. Ice cream trucks and parlors are likely to do a brisk business.

“Energy demands will be high, especially in households around the region with many people off on vacation and out of the office starting this weekend,” Duffey said.

Businesses that are shut down next week may want to help conserve energy and reduce the risk of a brownout, which is a drop in voltage caused by high electricity demand. Thermostats can be set to a higher temperature when employees are not on duty.

Daily record high temperatures are generally in the upper 90s to lower 100s this time of the year, so many records may remain in tact with this heat wave in the U.S. However, portions of southern Canada may challenge record highs.

AccuWeather RealFeelĀ® Temperatures will climb above 100 for a few hours most days with the worst conditions in the urban areas.

The RealFeel Temperature factors in many more parameters than the temperature and humidity with sun intensity being one.

The sun is about as strong as it gets this time of the year. The summer solstice, when the sun’s rays were most intense, was on June 21.

“It looks like temperatures will throttle up first, then the humidity will build later on,” according to AccuWeather Senior Meteorologist Brett Anderson.

“The heat will first build over the Midwest, next southern Ontario and the central Appalachians and finally the coastal Northeast,” Anderson said. “Humidity levels will then build a day or two into the heat.”

The air may stagnate over much of the region, including the major Interstate 95 cities from Richmond, Virginia, to Washington, D.C., Baltimore, Philadelphia, New York City and Boston.

“A lack of strong surface winds may result in a buildup of pollutants, such as ozone, and cause poor air quality in general,” Anderson said.

People with respiratory problems are urged to stay in an air-conditioned environment. Homeowners who do not have air conditioning may want to set up an area in a cool basement to spend time out of the heat.

There will be an elevated risk of heat exhaustion and heatstroke during the upcoming weather pattern.

Urban areas can become unbearable without air conditioning. Once the sun heats the brick, concrete and pavement up these surfaces will give off the heat through the night. Urban cooling stations will be needed where practically no relief from the heat is likely.

People are urged to drink plenty of liquids and limit their intake of alcohol in weather patterns such as these. Alcohol can accelerate dehydration.

Avoid prolonged strenuous physical activity, especially during the heat of the day from late morning through the afternoon. For those who feel the need to exercise or must do manual labor, the early mornings, evenings and nights are best.

Be sure to check on the elderly and young children on a regular basis.

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