Westchester County Health Commissioner Dr. Sherlita Amler is urging Bronxville, Scarsdale, and Eastchester residents to recognize the signs of heat stroke and call 911 immediately as real-feel temperatures reach 100°F on Tuesday, July 14, and Wednesday, July 15.

"Heat stroke and dehydration can surprise you," Amler said in emergency guidance issued Monday, July 13. "The elderly, young children and those with high blood pressure, heart disease, or lung conditions should be especially careful to avoid heat-related illnesses."

Heat stroke is life-threatening. The county Health Department identified four warning signs: hot, dry skin; shallow breathing; a rapid, weak pulse; and confusion. Anyone showing these symptoms needs an immediate 911 call. While waiting for paramedics, move the person to a cooler spot and try to bring their body temperature down.

The Health Department listed infants, older adults, pregnant women, people with asthma, and those with respiratory or heart conditions as the most vulnerable. High humidity and certain medications can also raise a person's risk.

This is the second heat emergency advisory the county has issued in less than three weeks. A prior warning went out June 28 for a heat wave with real-feel temperatures up to 110°F.

The Health Department recommends drinking two to four glasses of water per hour, even without feeling thirsty. Avoid caffeine, alcohol, and sugary drinks, which cause the body to lose fluid faster. Very cold drinks can trigger stomach cramps.

Residents without air conditioning should spend a few hours at a shopping mall, public library or grocery store. The New York State Cooling Center Finder lists nearby options, though the Health Department advises calling ahead to confirm hours.

If you must go outside, wear sunscreen with at least SPF 30, a hat, and lightweight, light-colored, loose-fitting clothing. Never leave people or pets in a closed vehicle.

Amler urged residents to look in on elderly neighbors, young children, and anyone with special needs. Extreme heat is the leading cause of weather-related deaths in the United States, according to the county Health Department's advisory.

Gov. Kathy Hochul said Tuesday, July 14, that heat advisories are in effect across much of New York. The state has approximately 5,500 utility workers on standby for potential power repairs.

The county's press release said humidity should ease Thursday, July 16, but could return over the weekend.

Residents can sign up for emergency weather alerts by texting "Westchester" to 333111.