650  
FPMY50 PGUM 142359  
ZFPGUM  
 
ZONE FORECAST FOR GUAM AND THE NORTHERN MARIANAS  
NATIONAL WEATHER SERVICE TIYAN GU  
959 AM CHST WED APR 15 2026  
 
GUZ001-151615-  
GUAM-  
959 AM CHST WED APR 15 2026  
   
..TROPICAL STORM WARNING REMAINS IN EFFECT
 
   
..TYPHOON WATCH REMAINS IN EFFECT
 
 
...COASTAL FLOOD WARNING REMAINS IN EFFECT UNTIL 5 AM CHST THURSDAY  
ALONG SOUTH, WEST, NORTH FACING SHORELINES...  
...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 6 PM CHST THURSDAY  
ALONG SOUTH, WEST, AND NORTH FACING REEFS...   
..FLOOD WATCH REMAINS IN EFFECT THROUGH TONIGHT
 
 
   
TODAY
 
TROPICAL STORM CONDITIONS EXPECTED. WEST WINDS 50 TO 60 MPH  
WITH GUSTS TO 75, DECREASING TO 40 TO 50 MPH THIS AFTERNOON. CLOUDY  
WITH NUMEROUS SHOWERS, BECOMING SCATTERED THIS AFTERNOON. ISOLATED  
THUNDERSTORMS. HIGHS AROUND 84. CHANCE OF SHOWERS 60 PERCENT.    
TONIGHT
 
TROPICAL STORM CONDITIONS EXPECTED. SOUTHWEST WINDS 35 TO  
45 MPH. MOSTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS. LOWS AROUND 79. CHANCE OF SHOWERS 50 PERCENT.   
THURSDAY
 
WINDY. PARTLY SUNNY WITH SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS. SOUTHWEST WINDS 25 TO 35 MPH. HIGHS AROUND 85. CHANCE  
OF SHOWERS 50 PERCENT.    
THURSDAY NIGHT
 
BREEZY. MOSTLY CLOUDY WITH ISOLATED SHOWERS.  
SOUTHWEST WINDS 20 TO 25 MPH. LOWS AROUND 78. CHANCE OF SHOWERS  
20 PERCENT.    
FRIDAY
 
BREEZY. PARTLY SUNNY WITH A 20 PERCENT CHANCE OF SHOWERS.  
WEST WINDS 20 TO 25 MPH. HIGHS AROUND 86.    
FRIDAY NIGHT THROUGH MONDAY
 
BREEZY. PARTLY CLOUDY WITH A  
20 PERCENT CHANCE OF SHOWERS. LOWS IN THE UPPER 70S. HIGHS IN THE  
UPPER 80S.    
MONDAY NIGHT AND TUESDAY
 
PARTLY CLOUDY WITH A 10 PERCENT CHANCE  
OF LIGHT SHOWERS. LOWS IN THE UPPER 70S. HIGHS IN THE UPPER 80S.  
 

 
 
MPZ001-151615-  
ROTA-  
959 AM CHST WED APR 15 2026  
   
..TYPHOON WARNING REMAINS IN EFFECT
 
 
...COASTAL FLOOD WARNING REMAINS IN EFFECT UNTIL 5 AM CHST THURSDAY  
ALONG SOUTH, WEST, AND NORTH FACING SHORELINES...  
...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 6 PM CHST THURSDAY  
ALONG SOUTH, WEST, AND NORTH FACING REEFS...   
..FLOOD WATCH REMAINS IN EFFECT THROUGH TONIGHT
 
 
   
TODAY
 
TROPICAL STORM CONDITIONS EXPECTED. SOUTHWEST WINDS 50 TO  
60 MPH WITH GUSTS TO 75 MPH, DECREASING TO 45 TO 55 MPH WITH GUSTS TO  
65 MPH IN THE AFTERNOON. CLOUDY WITH NUMEROUS HEAVY SHOWERS AND  
ISOLATED THUNDERSTORMS. HIGHS AROUND 84. CHANCE OF SHOWERS 70  
PERCENT.    
TONIGHT
 
TROPICAL STORM CONDITIONS EXPECTED. SOUTHWEST WINDS 35 TO  
45 MPH. MOSTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS. LOWS AROUND 79. CHANCE OF SHOWERS 50 PERCENT.    
THURSDAY
 
WINDY. SOUTHWEST WINDS 25 TO 35 MPH. MOSTLY CLOUDY WITH  
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS. HIGHS AROUND 84. CHANCE  
OF SHOWERS 50 PERCENT.    
THURSDAY NIGHT
 
WINDY. MOSTLY CLOUDY. SCATTERED SHOWERS AND  
ISOLATED THUNDERSTORMS IN THE EVENING, THEN ISOLATED SHOWERS AFTER  
MIDNIGHT. SOUTHWEST WINDS 25 TO 30 MPH. LOWS AROUND 78. CHANCE OF  
SHOWERS 50 PERCENT.    
FRIDAY
 
BREEZY. PARTLY SUNNY WITH A 20 PERCENT CHANCE OF SHOWERS.  
SOUTHWEST WINDS 20 TO 25 MPH. HIGHS AROUND 85.    
FRIDAY NIGHT
 
BREEZY. PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF  
SHOWERS. LOWS IN THE UPPER 70S.    
SATURDAY THROUGH MONDAY
 
BREEZY. PARTLY CLOUDY WITH A 20 PERCENT  
CHANCE OF SHOWERS. HIGHS IN THE MID 80S. LOWS IN THE UPPER 70S.    
MONDAY NIGHT AND TUESDAY
 
PARTLY CLOUDY WITH A 20 PERCENT CHANCE  
OF LIGHT SHOWERS. LOWS IN THE UPPER 70S. HIGHS IN THE MID 80S.  
 

 
 
MPZ002-003-151615-  
TINIAN-SAIPAN-  
959 AM CHST WED APR 15 2026  
   
..TYPHOON WARNING IN EFFECT
 
 
...COASTAL FLOOD WARNING REMAINS IN EFFECT UNTIL 5 AM CHST THURSDAY  
ALONG NORTH, EAST, SOUTH AND WEST FACING SHORELINES...  
...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 6 PM CHST THURSDAY  
ALONG NORTH, EAST, SOUTH AND WEST FACING REEFS...   
..FLOOD WATCH REMAINS IN EFFECT THROUGH TONIGHT
 
 
   
TODAY
 
TYPHOON CONDITIONS EXPECTED. SOUTH WINDS 125 TO 145 MPH WITH  
GUSTS TO 170 MPH DECREASING TO 95 TO 115 MPH AROUND NOON, THEN TO 65  
TO 85 MPH LATE AFTERNOON. CLOUDY. HEAVY SHOWERS AND SCATTERED  
THUNDERSTORMS IN THE MORNING, THEN HEAVY SHOWERS AND ISOLATED  
THUNDERSTORMS IN THE AFTERNOON. HIGHS AROUND 83. CHANCE OF SHOWERS 90  
PERCENT.    
TONIGHT
 
TROPICAL STORM CONDITIONS EXPECTED. SOUTHWEST WINDS 50 TO  
65 MPH. GUSTS UP TO 75 MPH IN THE EVENING. CLOUDY. NUMEROUS HEAVY  
SHOWERS AND ISOLATED THUNDERSTORMS IN THE EVENING, THEN SCATTERED  
SHOWERS AND ISOLATED THUNDERSTORMS AFTER MIDNIGHT. LOWS AROUND 79.  
CHANCE OF SHOWERS 70 PERCENT.    
THURSDAY
 
TROPICAL STORM CONDITIONS EXPECTED. SOUTHWEST WINDS 40  
TO 50 MPH. MOSTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS. HIGHS AROUND 84. CHANCE OF SHOWERS 50 PERCENT.    
THURSDAY NIGHT
 
WINDY. SOUTHWEST WINDS 30 TO 35 MPH. MOSTLY CLOUDY  
WITH SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS. LOWS AROUND 77.  
CHANCE OF SHOWERS 50 PERCENT.    
FRIDAY
 
WINDY. PARTLY SUNNY WITH A 20 PERCENT CHANCE OF SHOWERS.  
SOUTHWEST WINDS 25 TO 30 MPH. HIGHS AROUND 84.    
FRIDAY NIGHT
 
BREEZY. MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF  
SHOWERS. LOWS IN THE UPPER 70S.    
SATURDAY THROUGH MONDAY
 
BREEZY. PARTLY CLOUDY WITH A 20 PERCENT  
CHANCE OF SHOWERS. HIGHS IN THE MID 80S. LOWS IN THE UPPER 70S.    
MONDAY NIGHT AND TUESDAY
 
PARTLY CLOUDY WITH A 10 PERCENT CHANCE  
OF LIGHT SHOWERS. LOWS IN THE UPPER 70S. HIGHS IN THE UPPER 80S.  
 

 
 
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