Rota Coastal Waters
Today: West wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: Southwest 4 ft at 8 seconds, west 2 ft at 4 seconds and northeast 2 ft at 10 seconds. Scattered showers with isolated thunderstorms.
Rota Coastal Waters on the map
The zone and the zones around it, tinted where a marine warning or advisory is in force. Tap a neighboring zone to open its forecast.
Now
The nearest stations reporting each, as of Wed, Sep 30, 12:54 PM GMT+10.
- Wind
- NW 2 kt, gusts 7 kt at PGBP7
- Water
- 89°F at APRP7
Alerts in force
No marine warning or advisory is in force for this zone.
The forecast
Coastal Waters Forecast from National Weather Service Tiyan GU, issued Wed, Sep 30, 4:31 AM GMT+10, valid until Wed, Sep 30, 7:30 PM GMT+10. Wind in knots, seas in feet.
- Today
- West wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: Southwest 4 ft at 8 seconds, west 2 ft at 4 seconds and northeast 2 ft at 10 seconds. Scattered showers with isolated thunderstorms.
- Tonight
- West wind 5 to 15 kt. Seas 5 to 7 ft. Wave Detail: Southwest 5 ft at 8 seconds, northeast 3 ft at 10 seconds and west 3 ft at 4 seconds. Scattered showers with isolated thunderstorms.
- Thursday and Thursday night
- West wind 10 to 20 kt. Seas 6 to 9 ft. Wave Detail: Southwest 6 ft at 8 seconds, north 4 ft at 11 seconds and west 4 ft at 4 seconds. A chance of showers with a slight chance of thunderstorms.
- Friday through Sunday
- Southwest wind 15 to 25 kt. Seas 8 to 11 ft. Wave Detail: Southwest 8 ft at 8 seconds, west 5 ft at 6 seconds and north 5 ft at 11 seconds. Showers likely with a slight chance of thunderstorms.
Synopsis
Synopsis for Marianas Waters
Light to gentle northwesterlies will prevail tonight, veering to the west and strengthening slightly through tonight. Combined seas of 3 to 4 feet will increase over the coming days, as Invest 93W continues to consolidate to the east of the Marianas and allows a southwesterly monsoon to return across the region toward the weekend. As 93W passes to the northeast and a monsoon surge develops, seas are expected to surpass 10 feet beginning Friday, likely becoming hazardous to small craft.
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.
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 buoysThe hour-by-hour forecast for the middle of the zoneRota BeachesEvery Guam and Micronesia zone
Sources
Coastal Waters Forecast CWFGUM from National Weather Service Tiyan GU, issued Wed, Sep 30, 4:31 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 03:46 UTC. All public domain, from the National Weather Service.