213
FZMY50 PGUM 020600
CWFGUM

Coastal Waters Forecast for the Mariana Islands
National Weather Service Tiyan GU
400 PM ChST Tue Sep 2 2025

Marianas Waters out to 40 nautical miles

PMZ150-022100-
400 PM ChST Tue Sep 2 2025

.Synopsis for Marianas Waters...Expect light to moderate winds
over the next few days. Then near the weekend winds are
anticipated to fall back to light to gentle. Combined seas of 3
to 5 feet are expected to gradually fall over the week to near 3
to 4 feet by the weekend.

$$

PMZ151-152-022100-
Guam Coastal Waters-Rota Coastal Waters-
400 PM ChST Tue Sep 2 2025

.TONIGHT...Southeast wind 5 to 15 kt. Seas 3 to 4 ft. Wave
Detail: East 4 ft at 8 seconds and southeast 3 ft at 4 seconds.
Scattered showers with isolated thunderstorms.
.WEDNESDAY...East wind 5 to 15 kt. Seas 3 to 5 ft. Wave Detail:
East 4 ft at 8 seconds and east 3 ft at 4 seconds. Isolated
thunderstorms.
.WEDNESDAY NIGHT...East wind 5 to 15 kt. Seas around 4 ft. Wave
Detail: East 3 ft at 8 seconds and east 3 ft at 4 seconds.
Scattered showers with isolated thunderstorms.
.THURSDAY...East wind 5 to 10 kt. Seas around 4 ft. Wave Detail:
East 3 ft at 8 seconds and east 2 ft at 4 seconds. Scattered
showers with isolated thunderstorms.
.THURSDAY NIGHT...East wind 10 to 15 kt. Seas around 4 ft. Wave
Detail: East 3 ft at 8 seconds and east 3 ft at 4 seconds.
Isolated thunderstorms.
.FRIDAY THROUGH SUNDAY...East wind 5 to 15 kt. Seas 3 to 4 ft.
Wave Detail: Northeast 3 ft at 8 seconds and east 3 ft at
4 seconds. A slight chance of thunderstorms.

$$

PMZ153-154-022100-
Tinian Coastal Waters-Saipan Coastal Waters-
400 PM ChST Tue Sep 2 2025

.TONIGHT...Southeast wind 5 to 15 kt with gusts to 25 kt. Seas
around 4 ft. Wave Detail: East 4 ft at 8 seconds and southeast
3 ft at 4 seconds. Scattered showers with isolated thunderstorms.
.WEDNESDAY...Southeast wind 5 to 15 kt. Seas around 4 ft. Wave
Detail: East 4 ft at 8 seconds and southeast 3 ft at 4 seconds.
Isolated thunderstorms.
.WEDNESDAY NIGHT...East wind 5 to 15 kt. Seas around 4 ft. Wave
Detail: East 4 ft at 8 seconds and east 3 ft at 4 seconds.
Scattered showers with isolated thunderstorms.
.THURSDAY...East wind 5 to 10 kt. Seas around 4 ft. Wave Detail:
East 4 ft at 8 seconds and east 2 ft at 4 seconds. Isolated
thunderstorms.
.THURSDAY NIGHT...East wind 10 to 15 kt. Seas around 4 ft. Wave
Detail: Northeast 4 ft at 8 seconds and east 3 ft at 4 seconds.
Isolated thunderstorms.
.FRIDAY THROUGH SUNDAY...East wind 5 to 10 kt. Seas 3 to 4 ft.
Wave Detail: Northeast 4 ft at 8 seconds and east 2 ft at
4 seconds. A slight chance of thunderstorms.

$$