270  
FNMY50 PGUM 172324  
FWFGUM  
 
FIRE WEATHER PLANNING FORECAST FOR GUAM  
NATIONAL WEATHER SERVICE TIYAN GU  
924 AM CHST THU JUL 18 2019  
   
DISCUSSION
 
ISOLATED SHOWERS HAVE KEPT THE FIRE DANGER FROM  
INCREASING SINCE WETTING RAINS EARLY THIS WEEK DROPPED THE FIRE  
DANGER INTO THE HIGH CATEGORY. THE OVERALL WEATHER PATTERN CONTINUES  
TO SHOW SIGNS OF TRANSITIONING INTO A WET SEASON PATTERN OF WEAKER  
WINDS AND MORE RAINFALL. WITH VEGETATION BECOMING GREENER AND WINDS  
NOT EXPECTED TO EXCEED MODERATE SPEEDS, RED FLAG CONDITIONS ARE NOT  
EXPECTED ANY TIME SOON. THUS, THIS WILL BE THE LAST DAILY FIRE  
WEATHER FORECAST FOR THE 2019 DRY SEASON. HOWEVER, GUAM FORECASTERS  
WILL CONTINUE TO CALCULATE THE DAILY FIRE DANGER RATING THROUGH THE  
WET SEASON. DAILY FIRE WEATHER FORECASTS WILL RESUME ON NOVEMBER  
1ST, 2019, IN ANTICIPATION OF THE 2020 DRY SEASON. THE KBDI REMAINS  
IN THE HIGH CATEGORY AT 588.  
 

 
 
GUZ001-190100-  
GUAM-  
924 AM CHST THU JUL 18 2019  
 
TODAY TONIGHT FRI  
 
CLOUD COVER MCLDY MCLDY MCLDY  
PRECIP TYPE TSTMS TSTMS TSTMS  
CHANCE RAIN (%) 20 20 20  
TEMP 89 79 89  
RH % 62 86 63  
20FTWND-VAL/AM(MPH) E 8 E 8  
20FTWND-RDG/PM(MPH) E 10 E 9 E 9  
MIXING HGT(FT-MSL) 4089 200 4068  
TRANSPORT WND (MPH) E 15 E 6 E 15  
 

 
   
FORECAST FOR DAYS 3 THROUGH 7
 
 
   
FRIDAY NIGHT
 
MOSTLY CLOUDY WITH ISOLATED SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 70S. SOUTHEAST WINDS 5 TO 10 MPH.    
SATURDAY
 
PARTLY SUNNY WITH ISOLATED SHOWERS AND THUNDERSTORMS.  
HIGHS IN THE UPPER 80S. SOUTHEAST WINDS AROUND 5 MPH.    
SATURDAY NIGHT
 
MOSTLY CLOUDY WITH ISOLATED SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 70S. EAST WINDS UP TO 5 MPH IN THE  
EVENING BECOMING LIGHT.    
SUNDAY
 
PARTLY SUNNY WITH ISOLATED SHOWERS AND THUNDERSTORMS. HIGHS  
IN THE UPPER 80S. NORTHEAST WINDS UP TO 5 MPH.    
SUNDAY NIGHT
 
MOSTLY CLOUDY WITH ISOLATED SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 70S. NORTHEAST WINDS AROUND 5 MPH.    
MONDAY
 
MOSTLY SUNNY WITH ISOLATED SHOWERS. HIGHS AROUND 90.  
NORTHEAST WINDS 5 TO 10 MPH.    
MONDAY NIGHT
 
PARTLY CLOUDY WITH ISOLATED SHOWERS. LOWS IN THE  
UPPER 70S. EAST WINDS 5 TO 10 MPH.    
TUESDAY
 
MOSTLY SUNNY WITH ISOLATED SHOWERS. HIGHS AROUND 90. EAST  
WINDS 5 TO 10 MPH.    
TUESDAY NIGHT
 
PARTLY CLOUDY WITH ISOLATED SHOWERS. LOWS IN THE  
UPPER 70S. SOUTHEAST WINDS 5 TO 10 MPH.    
WEDNESDAY
 
MOSTLY SUNNY WITH ISOLATED SHOWERS. HIGHS AROUND 90.  
EAST WINDS AROUND 5 MPH.  
 

 
 
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