345  
FLUS42 KMLB 180846  
HWOMLB  
 
HAZARDOUS WEATHER OUTLOOK  
NATIONAL WEATHER SERVICE MELBOURNE FL  
446 AM EDT FRI AUG 18 2017  
 
AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141-  
144-147-182100-  
FLAGLER BEACH TO VOLUSIA-BREVARD COUNTY LINE 0-20 NM-VOLUSIA-  
BREVARD COUNTY LINE TO SEBASTIAN INLET 0-20 NM-  
SEBASTIAN INLET TO JUPITER INLET 0-20 NM-FLAGLER BEACH TO VOLUSIA-  
BREVARD COUNTY LINE 20-60 NM-VOLUSIA-  
BREVARD COUNTY LINE TO SEBASTIAN INLET 20-60 NM-  
SEBASTIAN INLET TO JUPITER INLET 20-60 NM-INLAND VOLUSIA COUNTY-  
NORTHERN LAKE COUNTY-ORANGE-SEMINOLE-SOUTHERN BREVARD COUNTY-  
OSCEOLA-INDIAN RIVER-OKEECHOBEE-ST. LUCIE-MARTIN-  
COASTAL VOLUSIA COUNTY-SOUTHERN LAKE COUNTY-  
NORTHERN BREVARD COUNTY-  
446 AM EDT FRI AUG 18 2017  
 
THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA.  
   
DAY ONE
 
TODAY AND TONIGHT.  
   
THUNDERSTORM IMPACT
 
 
A VERY MOIST AIR MASS WILL LEAD TO SCATTERED THUNDERSTORMS THIS  
AFTERNOON AND EVENING. THE HIGHEST COVERAGE IS EXPECTED TO OCCUR  
FROM LAKE AND INTERIOR VOLUSIA COUNTIES, ACROSS METRO ORLANDO INTO  
OSCEOLA COUNTY. A FEW STRONG STORMS WILL PRODUCE FREQUENT  
LIGHTNING STRIKES AND GUSTY WINDS 40 TO 50 MPH. STORM MOTION WILL  
BE SLOW AND ERRATIC, BUT GENERALLY BUILDING SOUTHWARD THROUGH THE  
AFTERNOON.  
   
FLOOD IMPACT
 
 
A FEW SLOW MOVING AND STRONG THUNDERSTORMS WILL BE CAPABLE OF  
PRODUCING QUICK 2 TO 3 INCH DOWNPOURS. CONSIDERABLE WATER PONDING  
ON ROADWAYS AND OTHER POORLY DRAINED AREAS WILL OCCUR.  
   
EXCESSIVE HEAT IMPACT
 
 
THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY WILL PRODUCE  
HEAT INDICES BETWEEN 100 AND 105 FROM LATE THIS MORNING INTO  
AFTERNOON. IF ENGAGING IN OUTDOOR ACTIVITIES, CONSUME SPORTS  
DRINKS AND PLENTY OF WATER. ALSO TAKE BREAKS IN THE SHADE OR AIR  
CONDITIONING.  
   
MARINE THUNDERSTORM GUST IMPACT
 
 
SCATTERED AFTERNOON STORMS OVER LAND WILL BE CAPABLE OF PRODUCING  
WIND GUSTS OVER 40 MPH, MAINLY ACROSS INTERIOR COUNTIES.  
   
DAYS TWO THROUGH SEVEN
 
SATURDAY THROUGH THURSDAY.  
THE GREATEST CHANCE FOR STRONG AFTERNOON STORMS IS EXPECTED TO  
SHIFT TO INTERIOR SECTIONS OVER THE WEEKEND AND THROUGH EARLY NEXT  
WEEK AS AN ONSHORE WIND FLOW DEVELOPS AND GRADUALLY FRESHENS.  
THESE ONSHORE WINDS WILL ALSO START TO MAKE THE SURF ZONE MORE  
HAZARDOUS, ESPECIALLY DUE TO RIP CURRENTS.  
   
SPOTTER INFORMATION STATEMENT
 
 
SPOTTER ACTIVATION IS NOT ANTICIPATED TODAY, HOWEVER SPOTTERS ARE  
ENCOURAGED TO REPORT ANY RAIN AMOUNTS OF 3 INCHES OR GREATER.  
 

 
 
LASCODY  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab FL Page Main Text Page