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A heat advisory has been issued for Long Island and the NYC metro region for Tuesday and Wednesday.

Heat index values are expected to climb from 95 to 104 degrees, according to the National Weather Service, which issued the advisory this morning. The advisory will remain in effect from 11 a.m. Tuesday through 9 p.m. Wednesday.

High heat and humidity this week can cause illness and even death among at-risk populations who cannot stay cool, the weather service warned. The heat and humidity may also cause heat stress during outdoor exertion or extended exposure.

To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency and should be treated as such, according to health officials. If heat stroke is suspected, call 911 for an ambulance.

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