Zone Forecast Product
Issued by NWS Tiyan, Guam

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FPMY50 PGUM 191651
ZFPGUM

Zone Forecast for Guam and the Northern Marianas
National Weather Service Tiyan GU
251 AM ChST Thu Nov 20 2025

GUZ001-MPZ001-200800-
Guam-Rota-
251 AM ChST Thu Nov 20 2025

...HIGH RISK OF RIP CURRENTS ALONG EAST FACING REEFS THROUGH LATE
MONDAY NIGHT...

.TODAY...Partly cloudy with isolated showers. East winds 15 to 20 mph.
Highs near 87. Chance of showers 20 percent.
.THURSDAY NIGHT...Mostly cloudy with scattered showers. East winds
15 to 20 mph. Lows around 77. Chance of showers 30 percent.
.FRIDAY AND FRIDAY NIGHT...Breezy. Mostly cloudy with scattered
showers and isolated thunderstorms. East winds 15 to 25 mph. Highs
around 86. Lows around 77. Chance of showers 40 percent.
.SATURDAY...Breezy. Partly sunny with isolated showers and
thunderstorms. East winds 15 to 25 mph. Highs around 86. Chance of
showers 20 percent.
.SATURDAY NIGHT...Breezy. Mostly cloudy with a 20 percent chance of
showers. Lows in the upper 70s.
.SUNDAY THROUGH WEDNESDAY... Partly cloudy with a 20 percent chance
of showers. Highs in the upper 80s. Lows in the upper 70s.

$$

MPZ002-003-200800-
Tinian-Saipan-
251 AM ChST Thu Nov 20 2025

...HIGH RISK OF RIP CURRENTS ALONG EAST FACING REEFS THROUGH LATE
MONDAY NIGHT...

.TODAY...Partly cloudy with isolated showers. East winds 15 to 20 mph.
Highs near 87. Chance of showers 20 percent.
.THURSDAY NIGHT... Mostly cloudy with scattered showers. East winds
15 to 20 mph. Lows around 79. Chance of showers 30 percent.
.FRIDAY...Breezy. Partly sunny with scattered showers and isolated
thunderstorms. East winds 20 to 25 mph. Highs near 86. Chance of
showers 30 percent.
.FRIDAY NIGHT AND SATURDAY...Breezy. Partly cloudy with isolated
showers. East winds 20 to 25 mph. Lows around 79. Highs around 86.
Chance of showers 20 percent.
.SATURDAY NIGHT...Partly cloudy with a 20 percent chance of showers.
Lows in the upper 70s.
.SUNDAY THROUGH WEDNESDAY...Partly cloudy with a 20 percent chance
of showers. Lows in the upper 70s. Highs in the upper 80s.

$$