314
WWUS72 KMLB 180438
NPWMLB

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