Heat Advisory

Locations Affected

Hempstead, NY ∙ New Hyde Park, NY ∙ Uniondale, NY ∙ Lindenhurst, NY ∙ Bayport, NY ∙ Shirley, NY ∙ Westbrook, CT ∙ Glenwood Landing, NY ∙ Fort Salonga, NY ∙ Inwood, NY

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service New York NY 203 AM EDT Mon Jun 23 2025 ...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 8 PM EDT TUESDAY... * WHAT...Heat index values up to 103 expected. * WHERE...In Connecticut, Southern Middlesex and Southern New London Counties. In New York, Northern Nassau, Northwest Suffolk, Southern Nassau, and Southwest Suffolk Counties. * WHEN...From noon today to 8 PM EDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...The highest heat index values will take place each day during the afternoon. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Heat Advisory is issued when the combination of heat and humidity is expected to make it feel like it is 95 to 99 degrees for two or more consecutive days, or 100 to 104 degrees for any length of time. Seniors and those with chronic health problems or mental health conditions are at an increased risk. Homes without air conditioning can be much hotter than outdoor temperatures. Use air conditioning to stay cool at home or go to a place that has air conditioning. If you don't have home air conditioning, continue to seek out cool spaces each day as long as it remains hot, and for a few days after if your home is still hot. Check on vulnerable friends, family members and neighbors. 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! In cases of heat stroke call 9 1 1.

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