NWS Melbourne Extends Heat Advisory for East Central Florida Through 8 PM EDT
The Heat Advisory across east central Florida now runs longer than first issued, spanning from 10 AM to 8 PM EDT on August 16, 2026.
4 reports on this incident · first at Aug 16, 2026, 12:11 a.m. ET
Earlier reports
Aug 16, 2026, 4:09 a.m. ET
NWS Melbourne Issues Heat Advisory for East Central Florida
According to official records from the National Weather Service Melbourne FL, a Heat Advisory is in effect on August 16, 2026, starting at 10:00 AM EDT and expiring at 8:00 PM EDT. The advisory covers a portion of east central Florida comprising 20 zones. Covered areas include Inland Volusia, Northern Lake, Orange, Seminole, Osceola, Okeechobee, Coastal Volusia, Southern Lake, Coastal Indian River, Coastal Saint Lucie, Coastal Martin, Inland Northern Brevard, Inland Indian River, Inland Saint Lucie, Inland Martin, Mainland Northern Brevard, Northern Brevard Barrier Islands, Inland Southern Brevard, Mainland Southern Brevard, and Southern Brevard Barrier Islands.
Official records report that heat index values of 108 to 112 are expected. Cities in the advisory area include New Smyrna Beach, Kissimmee, Sanford, Maitland, Hobe Sound, Daytona Beach, Ormond Beach, Clermont, Cocoa Beach, Saint Lucie West, Jensen Beach, Port Saint Lucie, Fellsmere, Merritt Island Wildlife Refuge, Mascotte, Mims, Orlando, Indiantown, Okeechobee, Rockledge, Melbourne, Altamonte Springs, Leesburg, Eustis, and Satellite Beach. Hot temperatures and high humidity may cause heat illnesses.
Official records recommend drinking plenty of fluids, remaining in air-conditioned spaces, staying out of the sun, and checking on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. For outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air-conditioned environments, and strenuous activities should be rescheduled to early morning or evening when possible. Anyone overcome by heat should be moved to a cool, shaded location, and 9 1 1 should be called in the event of heat stroke.
Aug 16, 2026, 3:57 a.m. ET
NWS Warns High Humidity and Heat May Cause Heat Illnesses in East Central Florida
Hot temperatures and high humidity may cause heat illnesses across a portion of east central Florida, according to official records from the National Weather Service Melbourne FL. Heat index values of 108 to 112 are expected.
The conditions are tied to a Heat Advisory running from 10 AM to 8 PM EDT on August 16, 2026. The advisory covers 20 zones, with affected cities including Orlando, Kissimmee, Sanford, Daytona Beach, Melbourne, and Port Saint Lucie.
Official weather records advise individuals to drink plenty of fluids, stay in air-conditioned rooms, stay out of the sun, and check on relatives and neighbors. The weather service emphasized that young children and pets should never be left unattended in vehicles under any circumstances, and urged calling 9 1 1 in the event of heat stroke.
Aug 16, 2026, 12:11 a.m. ETFirst report
Heat Advisory Takes Effect Sunday Morning for Parts of East Central Florida
A Heat Advisory for a portion of east central Florida has not yet begun. According to the advisory record issued by the National Weather Service Melbourne FL, 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 advisory period will have ended by then unless the issuing office extends or replaces it.
The NWS Melbourne record describes the timing as "From 10 AM this morning to 8 PM EDT this evening." It covers 20 zones and forecasts heat index values of 108 to 112.
According to the same advisory record, hot temperatures and high humidity may cause heat illnesses.
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 advisory 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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- Version 116 Aug 2026, 07:57current
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- Version 116 Aug 2026, 04:11current
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- Version 116 Aug 2026, 08:09current
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