371  
WWUS72 KMLB 190410  
NPWMLB  
 
URGENT - WEATHER MESSAGE  
NATIONAL WEATHER SERVICE MELBOURNE FL  
1210 AM EDT WED AUG 19 2026  
 
FLZ041-044>046-053-058-141-144-154-159-164-247-254-259-264-347-447-  
547-647-747-200000-  
/O.NEW.KMLB.HT.Y.0021.260819T1400Z-260820T0000Z/  
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 MOUNT DORA, DELTONA, STUART, WINTER PARK,  
DELAND, BASINGER, MELBOURNE BEACH, DAYTONA BEACH, SEBASTIAN, TAVARES,  
MASCOTTE, COCOA BEACH, WINTER SPRINGS, FORT PIERCE, LEESBURG, SAINT  
LUCIE WEST, MIMS, TITUSVILLE, ORMOND BEACH, TRADITION, VIERA WEST,  
UNION PARK, ORLANDO, ALTAMONTE SPRINGS, SAINT CLOUD, PORT SAINT  
LUCIE, CLERMONT, CELEBRATION, NEW SMYRNA BEACH, CASSELBERRY, MERRITT  
ISLAND WILDLIFE REFUGE, MAITLAND, SANFORD, FORT DRUM, PORT SAINT  
JOHN, CANAVERAL GROVES, GROVELAND, VERO BEACH, OKEECHOBEE, COCOA,  
JENSEN BEACH, PALM BAY WEST OF I  
95, INDIANTOWN, OVIEDO, MELBOURNE, DEBARY, ROCKLEDGE, HOBE SOUND,  
PLAYALINDA BEACH, KISSIMMEE, FELLSMERE, SATELLITE BEACH, APOPKA, AND  
EUSTIS  
1210 AM EDT WED AUG 19 2026  
 
...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 8 PM EDT THIS  
EVENING...  
 
* WHAT...HEAT INDEX VALUES 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  
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