686  
FPMY50 PGUM 241001  
ZFPGUM  
 
ZONE FORECAST FOR GUAM AND THE NORTHERN MARIANAS  
NATIONAL WEATHER SERVICE TIYAN GU  
801 PM CHST THU JUL 24 2025  
 
GUZ001-250300-  
GUAM-  
801 PM CHST THU JUL 24 2025  
   
..WIND ADVISORY IN EFFECT UNTIL 6 PM CHST SATURDAY
 
   
..FLOOD WATCH IN EFFECT THROUGH LATE SATURDAY NIGHT
 
 
...HIGH RISKOF RIP CURRENTS THROUGH LATE TONIGHT ALONG EAST FACING  
REEFS...  
...HIGH RISK OF RIP CURRENTS UNTIL 6 AM CHST SUNDAY ALONG SOUTH  
AND WEST FACING REEFS...  
...HIGH SURF ADVISORY IN EFFECT UNTIL 6 AM CHST SUNDAY ALONG SOUTH  
AND WEST FACING REEFS...  
   
REST OF TONIGHT
 
WINDY. CLOUDY WITH LOCALLY HEAVY SHOWERS AND  
ISOLATED THUNDERSTORMS. SOUTHWEST WINDS 20 TO 30 MPH. GUSTS TO 40  
MPH. LOWS AROUND 76. CHANCE OF SHOWERS 80 PERCENT.    
FRIDAY
 
WINDY. CLOUDY WITH LOCALLY HEAVY SHOWERS AND ISOLATED  
THUNDERSTORMS. SOUTHWEST WINDS 20 TO 30 MPH. GUSTS TO 40 MPH. HIGHS  
AROUND 82. CHANCE OF SHOWERS 80 PERCENT.    
FRIDAY NIGHT
 
WINDY. CLOUDY WITH NUMEROUS LOCALLY HEAVY SHOWERS  
AND ISOLATED THUNDERSTORMS. SOUTHWEST WINDS 20 TO 30 MPH. GUSTS TO 40  
MPH. LOWS AROUND 76. CHANCE OF SHOWERS 70 PERCENT.    
SATURDAY
 
WINDY. CLOUDY WITH NUMEROUS LOCALLY HEAVY SHOWERS AND  
ISOLATED THUNDERSTORMS. WEST WINDS 20 TO 30 MPH. GUSTS TO 40 MPH.  
HIGHS AROUND 84. CHANCE OF SHOWERS 70 PERCENT.    
SATURDAY NIGHT AND SUNDAY
 
BREEZY. MOSTLY CLOUDY. SCATTERED  
SHOWERS AND ISOLATED THUNDERSTORMS. SOUTHWEST WINDS 15 TO 25 MPH.  
LOWS AROUND 77. HIGHS AROUND 86. CHANCE OF SHOWERS 50 PERCENT.   
SUNDAY NIGHT
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS. LOWS IN THE UPPER 70S. CHANCE OF SHOWERS 30 PERCENT.    
MONDAY
 
PARTLY SUNNY WITH A 30 PERCENT CHANCE OF SHOWERS AND A  
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS IN THE UPPER 80S.    
MONDAY NIGHT THROUGH THURSDAY
 
MOSTLY CLOUDY WITH A 20 PERCENT  
CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE UPPER 70S. HIGHS IN  
THE UPPER 80S.  
 

 
 
MPZ001>003-250300-  
ROTA-TINIAN-SAIPAN-  
801 PM CHST THU JUL 24 2025  
   
..TROPICAL STORM WATCH IN EFFECT
 
   
..FLOOD WATCH IN EFFECT THROUGH LATE SATURDAY NIGHT
 
 
...HIGH RISK OF RIP CURRENTS THROUGH LATE TONIGHT ALONG EAST FACING  
REEFS...  
...HIGH RISK OF RIP CURRENTS UNTIL 6 AM CHST SUNDAY ALONG SOUTH AND  
WEST FACING REEFS...  
...HIGH SURF ADVISORY IN EFFECT UNTIL 6 AM CHST SUNDAY ALONG SOUTH  
AND WEST FACING REEFS...  
   
REST OF TONIGHT
 
WINDY. CLOUDY WITH LOCALLY HEAVY SHOWERS AND  
ISOLATED THUNDERSTORMS. SOUTH TO SOUTHWEST WINDS 20 TO 30 MPH. GUSTS  
TO 40 MPH. LOWS AROUND 76. CHANCE OF SHOWERS 80 PERCENT.    
FRIDAY
 
VERY WINDY. CLOUDY WITH LOCALLY HEAVY SHOWERS AND ISOLATED  
THUNDERSTORMS. SOUTHWEST WINDS 25 TO 35 MPH. GUSTS TO 45 MPH. HIGHS  
AROUND 82. CHANCE OF SHOWERS 90 PERCENT.    
FRIDAY NIGHT
 
VERY WINDY. CLOUDY WITH LOCALLY HEAVY SHOWERS AND  
ISOLATED THUNDERSTORMS. SOUTHWEST WINDS 25 TO 35 MPH. GUSTS TO 45  
MPH. LOWS AROUND 76. CHANCE OF SHOWERS 90 PERCENT.    
SATURDAY
 
VERY WINDY. CLOUDY WITH LOCALLY HEAVY SHOWERS AND  
ISOLATED THUNDERSTORMS. SOUTHWEST WINDS 25 TO 35 MPH. GUSTS TO 45  
MPH. HIGHS AROUND 82. CHANCE OF SHOWERS 90 PERCENT.    
SATURDAY NIGHT
 
VERY WINDY. CLOUDY WITH NUMEROUS LOCALLY HEAVY  
SHOWERS AND ISOLATED THUNDERSTORMS. SOUTHWEST WINDS 25 TO 35 MPH  
DECREASING TO 20 TO 25 MPH AFTER MIDNIGHT. GUSTS TO 45 MPH, MAINLY IN  
THE EVENING. LOWS AROUND 76. CHANCE OF SHOWERS 70 PERCENT.    
SUNDAY
 
BREEZY. MOSTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS. SOUTHWEST WINDS 20 TO 25 MPH. HIGHS AROUND 85. CHANCE  
OF SHOWERS 50 PERCENT.    
SUNDAY NIGHT
 
BREEZY. MOSTLY CLOUDY WITH SCATTERED SHOWERS AND  
ISOLATED THUNDERSTORMS. LOWS IN THE UPPER 70S. CHANCE OF SHOWERS  
30 PERCENT.    
MONDAY
 
BREEZY. PARTLY SUNNY WITH A 30 PERCENT CHANCE OF SHOWERS  
AND A SLIGHT CHANCE OF THUNDERSTORMS. HIGHS IN THE UPPER 80S.    
MONDAY NIGHT
 
BREEZY. MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF  
SHOWERS AND THUNDERSTORMS. LOWS IN THE UPPER 70S.    
TUESDAY THROUGH THURSDAY
 
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE  
OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE UPPER 80S. LOWS IN THE  
UPPER 70S.  
 

 
 
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