Coastal Waters Forecast
Issued by NWS Tiyan, Guam

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829
FZMY50 PGUM 090705
CWFGUM

Coastal Waters Forecast for the Mariana Islands
National Weather Service Tiyan GU
505 PM ChST Sat Nov 9 2024

Marianas Waters out to 40 nautical miles

PMZ150-092145-
505 PM ChST Sat Nov 9 2024

.Synopsis for Marianas Waters...Combined seas of 4 to 6 feet and
moderate winds expected through tonight. Seas and winds begin to
increase tomorrow as a tropical disturbance (Invest 94W) approaches
from Chuuk State. Winds and seas could become hazardous to small
craft, especially for Guam and Rota waters as 94W looks to pass
south of the coastal waters. Winds and seas begin to decrease
beginning Monday night, but Tropical Depression 25W northwest of
the Marshall Islands approaches from the east could impact the
coastal waters beginning Tuesday night.

$$

PMZ151-152-092145-
Guam Coastal Waters-Rota Coastal Waters-
505 PM ChST Sat Nov 9 2024

.TONIGHT...East wind 15 kt. Seas 4 to 6 ft. Wave Detail: East
4 ft at 9 seconds, east 3 ft at 5 seconds and west 2 ft at
11 seconds.
.SUNDAY...East wind 15 to 20 kt. Seas 5 to 7 ft. Wave Detail:
East 5 ft at 9 seconds, east 3 to 4 ft at 6 seconds and west 2 ft
at 10 seconds. Scattered showers and isolated thunderstorms in the
afternoon.
.SUNDAY NIGHT...East wind 20 kt with gusts to 30 kt. Seas 7 to
9 ft. Wave Detail: East 7 ft at 9 seconds and east 5 ft at
6 seconds. Numerous locally heavy showers with isolated
thunderstorms.
.MONDAY...East wind 15 to 20 kt with gusts to 30 kt. Seas 7 to
9 ft. Wave Detail: East 7 ft at 9 seconds, east 4 to 5 ft at 6
seconds and north 2 ft at 10 seconds. Numerous locally heavy
showers with isolated thunderstorms.
.MONDAY NIGHT...Southeast wind 10 to 15 kt. Seas 6 to 7 ft. Wave
Detail: East 6 ft at 9 seconds, southeast 2 to 3 ft at 4 seconds
and north 2 ft at 9 seconds. Scattered showers with isolated
thunderstorms.
.TUESDAY...East wind 5 to 10 kt. Seas 5 to 7 ft. Wave Detail:
East 6 ft at 10 seconds, southeast 2 ft at 4 seconds and north
2 ft at 12 seconds. Scattered showers with isolated
thunderstorms.
.WEDNESDAY THROUGH THURSDAY...East wind 10 to 15 kt. Seas 4 to
6 ft. Wave Detail: Northeast 5 ft at 9 seconds, east 2 to 3 ft at
4 seconds and north 2 ft at 12 seconds. A chance of showers with
a slight chance of thunderstorms.

$$

PMZ153-154-092145-
Tinian Coastal Waters-Saipan Coastal Waters-
505 PM ChST Sat Nov 9 2024

.TONIGHT...East wind 15 kt. Seas 5 to 6 ft. Wave Detail: East
5 ft at 9 seconds, east 3 ft at 5 seconds and west 2 ft at
11 seconds.
.SUNDAY...East wind 15 to 20 kt. Seas 5 to 7 ft. Wave Detail:
Northeast 6 ft at 9 seconds, east 3 to 4 ft at 5 seconds and west
2 ft at 10 seconds.
.SUNDAY NIGHT...East wind 15 to 20 kt. Seas 6 to 8 ft. Wave
Detail: East 6 ft at 9 seconds and east 3 to 4 ft at 6 seconds.
Scattered showers with isolated thunderstorms.
.MONDAY...East wind 15 to 20 kt. Seas 6 to 8 ft. Wave Detail:
East 7 ft at 9 seconds, east 3 to 4 ft at 5 seconds and north 2
ft at 10 seconds. Scattered showers with isolated thunderstorms.
.MONDAY NIGHT...East wind 10 to 15 kt. Seas 6 to 8 ft. Wave
Detail: East 7 ft at 10 seconds, east 2 to 3 ft at 4 seconds and
north 2 ft at 9 seconds. Scattered showers with isolated
thunderstorms.
.TUESDAY...East wind 5 to 10 kt. Seas 6 to 8 ft. Wave Detail:
East 7 ft at 10 seconds, east 2 ft at 4 seconds and north 2 ft at
12 seconds. Scattered showers with isolated thunderstorms.
.WEDNESDAY...East wind 10 to 15 kt. Seas 5 to 7 ft. Wave Detail:
Northeast 5 ft at 10 seconds, east 2 to 3 ft at 4 seconds and
north 2 ft at 12 seconds. A chance of showers with a slight chance
of thunderstorms.
.THURSDAY...East wind 10 to 15 kt. Seas 4 to 6 ft. Wave Detail:
East 5 ft at 9 seconds, east 2 to 3 ft at 5 seconds and north 2
ft at 12 seconds. A chance of showers with a slight chance of
thunderstorms.

$$