Heat Advisory
URGENT - WEATHER MESSAGE
National Weather Service Melbourne FL
1238 AM EDT Tue Aug 18 2026
FLZ041-044>046-053-058-141-144-154-159-164-247-254-259-264-347-447-
547-647-747-190000-
/O.NEW.KMLB.HT.Y.0020.260818T1400Z-260819T0000Z/
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-Southern Brevard Barrier Islands-
Including the cities of Satellite Beach, Stuart, Maitland,
Casselberry, Cocoa Beach, Okeechobee, Union Park, Canaveral Groves,
Eustis, Mount Dora, Saint Cloud, Sanford, Leesburg, Altamonte
Springs, Hobe Sound, Melbourne Beach, Indiantown, Mascotte,
Titusville, Playalinda Beach, Port Saint John, Port Saint Lucie,
Debary, Melbourne, Deltona, Orlando, Fort Pierce, Fellsmere, Mims,
Cocoa, Daytona Beach, Jensen Beach, Oviedo, Tavares, Vero Beach,
Apopka, Winter Park, Viera West, Winter Springs, Sebastian, Merritt
Island Wildlife Refuge, New Smyrna Beach, Saint Lucie West,
Celebration, Fort Drum, Ormond Beach, Clermont, Groveland, Tradition,
Kissimmee, Basinger, Deland,
Rockledge, and Palm Bay west of I 95
1238 AM EDT Tue Aug 18 2026
...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 8 PM EDT THIS
EVENING...
* WHAT...Heat index values of 108 to 112 expected.
* WHERE...Portions of east central Florida.
* WHEN...From 10 AM this morning to 8 PM EDT this evening.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors. Young children and
pets should never be left unattended in vehicles under any
circumstances. Take extra precautions if you work or spend time
outside. When possible reschedule strenuous activities to early
morning or evening. Know the signs and symptoms of heat exhaustion
and heat stroke. Wear lightweight and loose fitting clothing 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. Heat stroke is an
emergency! Call 9 1 1.
&&
$$
Tollefsen
URGENT - WEATHER MESSAGE
National Weather Service Tampa Bay Ruskin FL
1252 AM EDT Tue Aug 18 2026
FLZ043-050-052-056-057-061-139-142-148-149-151-155-160-162-165-239-
242-248-249-251-255-260-262-265-182300-
/O.NEW.KTBW.HT.Y.0018.260818T1500Z-260818T2300Z/
Sumter-Pinellas-Polk-Hardee-Highlands-DeSoto-Coastal Levy-Coastal
Citrus-Coastal Hernando-Coastal Pasco-Coastal Hillsborough-
Coastal Manatee-Coastal Sarasota-Coastal Charlotte-Coastal Lee-
Inland Levy-Inland Citrus-Inland Hernando-Inland Pasco-Inland
Hillsborough-Inland Manatee-Inland Sarasota-Inland Charlotte-
Inland Lee-
Including the cities of Zolfo Springs, Placid Lakes, Cape Coral,
Crystal River, Lake Panasoffkee, Arcadia, Plant City, Englewood,
Sanibel, Myakka City, Zephyrhills, The Villages, Dade City, Avon
Park, Lakeland, Anna Maria Island, Lehigh Acres, Cedar Key, Babcock
Ranch, Bronson, Spring Hill, Punta Gorda, Brooksville, Sun City
Center, Williston, North Port, Bowling Green, Captiva, Wauchula,
Bushnell, Clearwater, Lakewood Ranch, Sebring, Hernando Beach,
Westchase, Inverness, Homosassa, Wildwood, Chiefland,
Bradenton, Bayport, Port Richey, Tampa, St. Petersburg, Port
Charlotte, Parrish, Hudson, Largo, Yankeetown, Apollo Beach,
Sarasota, Winter Haven, Venice, Brandon, and Fort Myers
1252 AM EDT Tue Aug 18 2026
...HEAT ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 7 PM EDT THIS
EVENING...
* WHAT...Heat index values up to 112 expected.
* WHERE...Portions of southwest and west central Florida.
* WHEN...From 11 AM this morning to 7 PM EDT this evening.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Miami FL
1228 AM EDT Tue Aug 18 2026
FLZ063-066>075-168-172>174-182300-
/O.NEW.KMFL.HT.Y.0034.260818T1500Z-260818T2300Z/
Glades-Hendry-Inland Palm Beach County-Metro Palm Beach County-
Coastal Collier County-Inland Collier County-Inland Broward
County-Metro Broward County-Inland Miami-Dade County-Metropolitan
Miami Dade-Mainland Monroe-Coastal Palm Beach County-Coastal
Broward County-Coastal Miami Dade County-Far South Miami-Dade
County-
Including the cities of Brighton Seminole, Sunrise, North Blocks
Golde, Greenacres City, Deerfield Beach, Ortona, Lion Country
Safari Park, Miles City, Florida City, Belle Glade, Caloosa,
Kendale Lakes, Pompano Beach, Lake Worth, Fortymile Bend, West
Palm Beach, Hialeah, Boca Raton, Boynton Beach, North Naples, The
Acreage, Miccosukee Indian Reservation, Miramar, Shark Valley Obs
Tower, Redland, Kendall, Riviera Beach, Hollywood, Bonita Shores,
Marco Island, Marco Island Airport, Mahogany Hammock, Pa-Hay Okee
Overlook, Jupiter, Felda, Lakeport, Royal Palm Hammock, Pembroke
Pines, Hendry Correctional, Fort Lauderdale, Orange Tree,
Immokalee, Coral Springs, Wellington, Golden Gate, Bunker Hill,
Palmdale, Buckhead Ridge, Clewiston, East Naples, Sawgrass Mills
Mal, Carol City, Delray Beach, Florida Gardens, Davie, Muse,
Sandalfoot Cove, Palm Beach Gardens, Naples, Northwest Cape
Sable, Royal Palm Ranger, Moore Haven, Royal Palm Beach, Miami,
and Sunniland
1228 AM EDT Tue Aug 18 2026
...HEAT ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 7 PM EDT THIS
EVENING...
* WHAT...Heat index values of 105 to 112 expected.
* WHERE...All of South Florida.
* WHEN...From 11 AM this morning to 7 PM EDT this evening.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
&&
$$
CF
