Heat Advisory in Effect as Feels-Like Temps Could Hit 110°F on Treasure Coast

TODAY: Dangerously hot and humid. Afternoon heat index values could reach 110°F across Martin, St. Lucie, and Indian River Counties. Actual high temperatures are expected in the low-to-mid 90s. A 30 percent chance of afternoon showers is not expected to cool things down. The National Weather Service has issued a Heat Advisory for the region.

TONIGHT: Partly cloudy and muggy. Low near 80°F. Little relief is expected overnight, meaning the body gets no break from the day's heat stress.

THIS WEEK: The heat pattern holds into the weekend before a modest increase in sea-breeze shower activity early next week may bring marginally lower afternoon temperatures. No significant pattern break is forecast through the five-day window.

ON THE WATER: Onshore winds 10-15 knots. Nearshore seas two to three feet. Morning hours offer the best window before heat stress peaks. Boaters should carry extra water and wear sun protection. Fishing activity is best before 10 a.m. offshore of Stuart and Fort Pierce Inlets.

ALERTS: A Heat Advisory is in effect through Friday evening for Martin, St. Lucie, and Indian River Counties. Heat index values of 105°F to 110°F are expected, the National Weather Service said. Residents should drink water frequently, avoid prolonged outdoor exposure between noon and 5 p.m., and check on elderly neighbors and outdoor workers.

For anyone working a job site in Port St. Lucie or spending Friday afternoon at a Vero Beach beach park, the day demands caution. Heat kills quietly, quickly, and without warning. Stay in the shade. Carry water. Know the signs of heat exhaustion: heavy sweating, weakness, and a rapid pulse. If someone stops sweating in this heat, call 911 immediately.

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