Dangerous heat, humidity continue across most of the Northeast

Brutally Hot Weekend for the Northeast

Another spell of extreme discomfort is being experienced by those who live around the major metro areas of the Northeast on Sunday as hot temperatures and elevated humidity levels combine to send the heat index into the danger zone.

The heat will continue into Monday from parts of southern New England southward into the mid-Atlantic. By Tuesday, much of the worst heat will be squashed southward into the mid-Atlantic region due to a cold front.

On Saturday, Washington, D.C. tied a daily record high by reaching 101 degrees. This was the first 100-degree day there since July of 2012. The heat index maxed out at 114 degrees during the afternoon. Our nation's capital also tied its warmest low temperature on record for the month of August Friday and Saturday by only dipping to 81 degrees.

New York City saw a maximum heat index of about 110 degrees Saturday, though the actual high for the day was 96 degrees.

Severe, hot summer weather in the US in 2016
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Severe, hot summer weather in the US in 2016
A woman rests in the shade during a hot and sunny day at Central Park in New York July 17, 2016. REUTERS/Eduardo Munoz
People sit in the shade around the fountain at the Christian Science Plaza on a hot summer day in Boston, Massachusetts July 20, 2015. REUTERS/Brian Snyder TPX IMAGES OF THE DAY
A helicopter drops water near a hot spot on the Wagg Fire near Lake Berryessa, California July 24, 2015. A rapidly expanding wildfire in Northern California is threatening about 150 structures and has forced evacuations in several rural areas as the wind-whipped blaze rips across parched vegetation, officials said on Wednesday. REUTERS/Robert Galbraith
People cool off beside a fountain during heat wave at the Word War Two Memorial in Washington July 18, 2013. The northeastern United States sweltered on Tuesday in a scorching summer heat wave, complete with stagnant, sticky air and no winds for relief, forecasters said. Even in a summer already filled with stretches of very hot weather, this week will be stubbornly brutal, with no relief in sight until the weekend brings thunderstorms to the region, they said. REUTERS/Yuri Gripas (UNITED STATES - Tags: WEATHER)
Friends Grace Greenwood (L) and Alex Place, both of Arlington, Virginia, leap into a water sprinkler for a "high ten" during heat wave at the Washington Monument in Washington July 18, 2013. Greenwood was celebrating her birthday with a visit into the city. The nation's capital is experiencing a heat wave with temperatures around 100 degrees Fahrenheit (38 degrees Celsius). REUTERS/Kevin Lamarque (UNITED STATES - Tags: ENVIRONMENT TPX IMAGES OF THE DAY)
NEW YORK CITY, NY, UNITED STATES - 2016/07/24: New York City, New York. A dog keep cool during a heatwave across the city. (Photo by Louise Wateridge/Pacific Press/LightRocket via Getty Images)
People enjoy a day in the pool during a heat wave called "Heat Dome" in the Astoria borough of New York, U.S., July 24, 2016. REUTERS/Eduardo Munoz
Children play in a fountain during a heat wave in Washington, U.S., July 24, 2016. REUTERS/Joshua Roberts
People cool off in the Pacific Ocean during a record-setting heat wave across the U.S. Southwest, on the summer solstice in Santa Monica, California, U.S. June 20, 2016. REUTERS/Lucy Nicholson
Jun 5, 2016; Baltimore, MD, USA; A general view as storm clouds roll over Oriole Park at Camden Yards during the eighth inning of the game between the Baltimore Orioles and the New York Yankees . Mandatory Credit: Tommy Gilligan-USA TODAY Sports

The National Weather Service has issued various heat alerts, including heat advisories and excessive heat warnings for parts of the Northeast, including Boston, New York City, Philadelphia and the Baltimore-Washington D.C. area.

Washington D.C. and Philadelphia will see high temperatures in the mid-90s through Monday.

An excessive heat warning is in effect for the metro Philadelphia area through Sunday, where the heat index (how hot it feels) could approach 110 degrees in the afternoon hours. Baltimore and Washington D.C. are under an excessive heat warning again on Sunday. Heat index values of 105-110 degrees are expected during the afternoon hours.

Both of those locations will continue to see hot temperatures in the 90s to start the new week Monday into Tuesday.

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An excessive heat warning is in effect for the New York City metro area through Sunday evening.

High temperatures in New York City are expected to reach the mid 90s, and the heat index could range from 105-110 degrees in the afternoon hours. Temperatures will trend somewhat cooler on Monday with highs in the low 90s along with less oppressive heat index values.

For the Boston metro area, temperatures will soar to the mid 90s on Sunday, with heat indices above 100 degrees. Boston will also see cooler temperatures move in Monday into Tuesday, as compared to Sunday.

These conditions are particularly dangerous to those who are most vulnerable, such as the sick or elderly, especially if they are without air conditioning.

The National Weather Service has published some heat safety tips.

Job Sites: Stay hydrated and take breaks in the shade as much as possible.
Indoors: Check up on the elderly, sick and those without air conditioning.
Outdoors: Limit strenuous outdoor activities, find shade and stay hydrated.
Vehicles: Never leave kids or pets unattended - "look before you lock."

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