Yap Coastal Waters

PMZ171 · Coastal Waters Forecast, National Weather Service Tiyan GU · issued Mon, Oct 5, 4:56 AM GMT+10

Small Craft Advisory in force. Today: Southwest wind 15 to 25 kt with frequent gusts to 30 kt. Wind waves 4 to 6 ft. Mixed swell southwest 5 to 6 ft and north 3 ft. Mostly cloudy. Numerous showers and isolated thunderstorms. Highs near 85. Chance of showers 70 percent.

Yap Coastal Waters on the map

The zone, tinted where a marine warning or advisory is in force. Tap a neighboring zone to open its forecast.

Small Craft Advisory

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Now

The nearest stations reporting each, as of Mon, Oct 5, 8:00 AM GMT+10.

Waves: 4.3 ft at 7 s at 52214
Water: 84°F at 52214

Alerts in force

Small Craft Advisory from Mon, Oct 5, 4:48 AM GMT+10 until Tue, Oct 6, 5:00 AM GMT+10

Small Craft Advisory issued October 5 at 4:48AM ChST until October 6 at 5:00AM ChST by NWS Tiyan GU

The full text

* WHAT...Southwest winds 15 to 25 kt with frequent gusts up to 30 kt.

* WHERE...Palau and Yap Coastal Waters.

* WHEN...Until 5 AM ChST Tuesday.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...The monsoon surge is producing winds that
are hazardous to small craft operations. These stronger winds are
mainly expected to be near heavier showers.

Inexperienced mariners, especially those operating smaller
vessels, should avoid boating in hazardous conditions.

The forecast

Coastal Waters Forecast from National Weather Service Tiyan GU, issued Mon, Oct 5, 4:56 AM GMT+10, valid until Mon, Oct 5, 6:00 PM GMT+10. Wind in knots, seas in feet.

SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY TUESDAY MORNING

Today: Southwest wind 15 to 25 kt with frequent gusts to 30 kt. Wind waves 4 to 6 ft. Mixed swell southwest 5 to 6 ft and north 3 ft. Mostly cloudy. Numerous showers and isolated thunderstorms. Highs near 85. Chance of showers 70 percent.
Tonight: Southwest wind 15 to 20 kt frequent gusts to 30 kt. Wind waves 3 to 5 ft. Mixed swell southwest 4 to 5 ft and north 3 to 4 ft. Cloudy. Numerous showers and isolated thunderstorms. Lows around 75. Chance of showers 70 percent.
Tuesday: Southwest wind 10 to 20 kt occasional gusts to 25 kt. Wind waves 3 to 4 ft. Mixed swell southwest 5 to 6 ft and north 3 to 4 ft. Partly sunny. Scattered showers and isolated thunderstorms. Highs near 86. Chance of showers 40 percent.
Tuesday night: Southwest wind 10 to 15 kt with occasional gusts to 25 kt. Wind waves 3 to 4 ft. West swell 5 to 6 ft and northwest 3 to 4 ft. Mostly cloudy. Scattered showers and isolated thunderstorms. Lows around 77. Chance of showers 40 percent.
Wednesday: Southwest wind 10 to 15 kt. Wind waves 2 to 3 ft. Northwest swell 5 to 6 ft and north 3 to 4 ft. Widespread showers and slight chance of thunderstorms. Highs in the mid 80s. Lows in the upper 70s. Chance of showers 80 percent.
Thursday: Southwest wind 10 to 15 kt. Wind waves 2 to 3 ft. Northwest swell 5 to 6 ft and north 3 to 4 ft. Cloudy with a 50 percent chance of showers and slight chance of thunderstorms. Highs in the mid 80s. Lows in the upper 70s.
Friday: Southwest wind 10 to 15 kt. Wind waves 2 to 3 ft. West swell 5 to 6 ft and north 3 ft. Mostly cloudy with a 50 percent chance of showers and slight chance of thunderstorms. Highs in the upper 80s. Lows in the upper 70s.

Buoys and stations nearby

The latest report from each station within reach of the zone, nearest first. Distances in nautical miles from the middle of the zone.

Station	Distance	Wind	Waves	Water	Air	Pressure	Reported
52214 Rumung, Yap, Micronesia (272)	17 nm		4.3 ft at 7 s from WSW	84°F	83°F		Mon, Oct 5, 8:00 AM GMT+10

The past year

Warnings, watches and advisories the National Weather Service issued for this zone over the past 12 months, from the Iowa Environmental Mesonet’s archive.

The archive of past products did not answer just now.

What this means

Marine forecasts give wind in knots (1 knot is 1.15 mph) and seas in feet, except the high seas forecasts, which give seas in meters. Seas are the significant wave height, the average of the highest third of the waves; individual waves may be more than twice that. On the Great Lakes the forecast gives waves, not seas. "Wave Detail" splits the seas into the wind waves and each swell, with its direction and period.

Each coastal office writes a Coastal Waters Forecast for the bays, sounds and ocean out to 20 to 60 nautical miles, or on the Great Lakes a Nearshore Marine Forecast within 5 nautical miles of shore; the Open Lakes Forecast covers the rest of each lake. The Ocean Prediction Center and the National Hurricane Center write the Offshore Waters Forecasts out to about 250 nautical miles, and the High Seas Forecasts beyond. Forecasts are issued at least twice a day and updated when they go wrong.

Small Craft Advisory: Winds or conditions hazardous to small boats. The thresholds are set by each NWS region: typically sustained winds or frequent gusts of 20 to 25 knots up to 33 knots, and seas of 5 to 7 feet or more.
Gale Warning: Sustained winds or frequent gusts of 34 to 47 knots, not from a tropical cyclone.
Storm Warning: Sustained winds or frequent gusts of 48 to 63 knots, not from a tropical cyclone.
Hurricane Force Wind Warning: Sustained winds or frequent gusts of 64 knots or more, not from a tropical cyclone.
Special Marine Warning: A thunderstorm or squall over the water with winds or gusts of 34 knots or more, hail of 3/4 inch or more, or a waterspout, for up to two hours.
Hazardous Seas Warning: Wave heights or steepness at or above the office’s warning threshold, when the wind alone does not warrant a warning.
Heavy Freezing Spray Warning: Spray freezing on a vessel at 2 cm (3/4 inch) an hour or more.
Tropical Storm and Hurricane Warnings: Tropical storm (34 to 63 knots) or hurricane (64 knots or more) conditions expected within 36 hours. Watches: possible within 48 hours.

Nearby

Open the live map with marine zones and buoys The hour-by-hour forecast for the middle of the zone Every Guam and Micronesia zone

Sources

Coastal Waters Forecast CWFPQ2 from National Weather Service Tiyan GU, issued Mon, Oct 5, 4:56 AM GMT+10. Original at NWS. Buoy reports from the National Data Buoy Center. Past products from the Iowa Environmental Mesonet. Zone outlines from the NWS marine and offshore zone boundaries. Warnings and advisories from the NWS API, read 22:40 UTC. All public domain, from the National Weather Service.