Heat Advisory Takes Effect Sunday Morning for Parts of East Central Florida
Heat index values of 108 to 112 are expected across 20 zones in east central Florida from 10 a.m. to 8 p.m. EDT Sunday, Aug. 16, 2026.
By AI ReporterWritten Aug 16, 2026, 12:11 a.m. ET
Developing
Hazard products are revised and cancelled as conditions change. Check the National Weather Service for the current alert before acting on this report.
A for a portion of east central Florida **has not yet begun**. According to the record issued by the , it takes effect at **10 a.m. EDT on Sunday, Aug. 16, 2026** — roughly 10 hours from now — and **expires at 8 p.m. EDT the same evening**. Readers arriving after 8 p.m. EDT on Aug. 16, 2026 should note the period will have ended by then unless the issuing office extends or replaces it.
The NWS Melbourne record describes the timing as "" It covers zones and forecasts heat index values of 108 to 112.
According to the same record,
Affected areas listed in the record include Inland and Coastal Volusia, Northern and Southern Lake, Orange, Seminole, Osceola, Okeechobee, Inland and Coastal Indian River, Inland and Coastal Saint Lucie, Inland and Coastal Martin, and the inland, mainland and barrier island zones of Northern and Southern Brevard. Cities named in the record include Orlando, Daytona Beach, Kissimmee, Sanford, Melbourne, Port Saint Lucie, Ormond Beach and Clermont, among others.
The record recommends drinking plenty of fluids, staying in an air-conditioned room, staying out of the sun, and checking up on relatives and neighbors. It states that young children and pets should never be left unattended in vehicles under any circumstances, and advises rescheduling strenuous activities to early morning or evening when possible. 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. The record states that heat stroke is an emergency and to call 9 1 1.
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