516
FPMY50 PGUM 212323
ZFPGUM
ZONE FORECAST FOR GUAM AND THE NORTHERN MARIANAS
NATIONAL WEATHER SERVICE TIYAN GU
923 AM CHST SAT AUG 22 2026
GUZ001-MPZ001-221030-
GUAM-ROTA-
923 AM CHST SAT AUG 22 2026
...HIGH RIP CURRENT RISK IN EFFECT THROUGH SUNDAY AFTERNOON ALONG
EAST FACING REEFS...
TODAY
BREEZY. PARTLY SUNNY WITH SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. SOUTHWEST WINDS 15 TO 25 MPH. HIGHS AROUND 87. CHANCE
OF SHOWERS 40 PERCENT.
TONIGHT
MOSTLY CLOUDY WITH SCATTERED LOCALLY HEAVY SHOWERS AND
ISOLATED THUNDERSTORMS. SOUTHWEST WINDS 10 TO 15 MPH. LOWS AROUND 77.
CHANCE OF SHOWERS 40 PERCENT.
SUNDAY
BREEZY. PARTLY SUNNY WITH SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. SOUTHWEST WINDS 15 TO 25 MPH. HIGHS AROUND 86. CHANCE
OF SHOWERS 30 PERCENT.
SUNDAY NIGHT AND MONDAY
MOSTLY CLOUDY. SCATTERED LOCALLY HEAVY
SHOWERS AND ISOLATED THUNDERSTORMS. SOUTHWEST WINDS 10 TO 15 MPH.
LOWS AROUND 77. HIGHS AROUND 85. CHANCE OF SHOWERS 40 PERCENT.
MONDAY NIGHT AND TUESDAY
MOSTLY CLOUDY. SCATTERED LOCALLY HEAVY
SHOWERS AND ISOLATED THUNDERSTORMS. LOWS IN THE UPPER 70S. HIGHS IN
THE MID 80S. CHANCE OF SHOWERS 40 PERCENT.
TUESDAY NIGHT THROUGH FRIDAY
BREEZY. MOSTLY CLOUDY WITH A CHANCE
OF SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER
70S. HIGHS IN THE MID 80S. CHANCE OF SHOWERS 40 PERCENT.
MPZ002-003-221030-
TINIAN-SAIPAN-
923 AM CHST SAT AUG 22 2026
...HIGH SURF ADVISORY IN EFFECT UNTIL 5 PM CHST SUNDAY ALONG NORTH
FACING REEFS...
...HIGH RIP CURRENT RISK IN EFFECT THROUGH SUNDAY AFTERNOON ALONG
NORTH AND EAST FACING REEFS...
TODAY
BREEZY. PARTLY SUNNY WITH SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. WEST WINDS 20 TO 25 MPH. HIGHS AROUND 87. CHANCE OF
SHOWERS 40 PERCENT.
TONIGHT
BREEZY. MOSTLY CLOUDY WITH SCATTERED LOCALLY HEAVY SHOWERS.
SOUTHWEST WINDS 15 TO 25 MPH. LOWS AROUND 78. CHANCE OF SHOWERS 50
PERCENT.
SUNDAY
BREEZY. PARTLY SUNNY WITH ISOLATED SHOWERS AND
THUNDERSTORMS. SOUTHWEST WINDS 15 TO 25 MPH. HIGHS AROUND 87. CHANCE
OF SHOWERS 20 PERCENT.
SUNDAY NIGHT AND MONDAY
MOSTLY CLOUDY. SCATTERED LOCALLY HEAVY
SHOWERS AND ISOLATED THUNDERSTORMS. SOUTH WINDS 10 TO 15 MPH. LOWS
AROUND 79. HIGHS AROUND 85. CHANCE OF SHOWERS 40 PERCENT.
MONDAY NIGHT AND TUESDAY
MOSTLY CLOUDY. SCATTERED LOCALLY HEAVY
SHOWERS AND ISOLATED THUNDERSTORMS. LOWS IN THE UPPER 70S. HIGHS IN
THE MID 80S. CHANCE OF SHOWERS 40 PERCENT.
TUESDAY NIGHT THROUGH FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER 70S.
HIGHS IN THE MID 80S. CHANCE OF SHOWERS 40 PERCENT.
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