New York City is riding its second heat wave of the summer, prompting the National Weather Service to issue a Heat Advisory that will be in effect until Wednesday.

NWS first issued the Heat Advisory Monday, noting that the advisory is triggered when the combination of heat and humidity is anticipated to make it feel like 95 to 99 degrees for two or more consecutive days, or 100 to 104 degrees at any time.

The advisory is in effect until 8 p.m. Wednesday as heat indices are expected to range from 95 to 100 degrees through then.

Temperatures will range from the low to mid-90s, accompanied by muggy conditions and increasing humidity. Central Park recorded a high of 95 degrees on Monday, the warmest temperature in the park since Aug. 9, 2022.

Health officials advise New Yorkers to stay vigilant for symptoms of heat-related illnesses, including hot and dry skin, elevated heart rate, confusion and nausea. Residents should also be aware of deteriorating air quality due to the heat.

In response to the heat, cooling centers across the city will remain open through Wednesday. Officials urge residents without access to air conditioning — especially senior citizens — to utilize these facilities, some of which are pet-friendly. Find one here.

The city’s Parks Department has also extended hours at outdoor pools, including Olympic and intermediate-sized pools, until 8 p.m. on Tuesday. 

New Yorkers flocked to one of the city’s 53 outdoor pools on Tuesday to beat the heat, including McCarren Park Pool in Williamsburg, Brooklyn.

“We came to the pool today because it’s a nice day and it’s hot and we just want to enjoy the pool,” Zarriyah Spruill, a pool visitor, said.

“There’s not really much else to do on hot days, but cool down. So, it’s important to have access to like public pools,” Juniper Huggins, another pool visitor, said.

The city continues to work on tackling its years long lifeguard shortage. The city's Parks Commissioner Sue Donoghue said the department has hired more than 800 lifeguards, thanks, in part, to increased recruitment efforts and a recent pay raise.

“We have crossed over the 800 mark,” Donoghue said. “We have over 800 lifeguards in place and we’re continuing to certify and add new ones every day. Really important for our beaches and pools.”

NY1 meteorologist anticipate an increase in thunderstorm activity beginning Wednesday, offering potential relief from the heat by Thursday, when storms should roll in.