Severe Thunderstorms and Heavy Rainfall in the Ohio Valley and Great Lakes; Winter Weather in the Northern Tier

A slow moving front extending from the Great Lakes region into the Plains will bring snow, wintry mix, and ice accumulation north of the front from the Upper Midwest into New England, and severe weather and heavy rain south of the front. Scattered severe thunderstorms with damaging gusts, severe hail, and heavy rain are expected across parts of the Great Lakes/Midwest through tonight. Read More >

Last Update: 410 PM ChST Tue Mar 31 2026

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Tiyan, GU Local Forecast Office

20NM NW Apra Harbor GU

Marine Zone Forecast

Tonight

East wind 10 to 15 kt, up to 20 kt in tinian and saipan waters. Seas 5 to 8 ft. Wave detail: northeast 6 ft at 8 seconds, east 5 ft at 4 seconds and east 2 ft at 9 seconds. Scattered showers for tinian and saipan.

Wednesday

Northeast wind 10 to 20 kt. Seas 5 to 8 ft. Wave detail: northeast 6 ft at 8 seconds, east 4 ft at 5 seconds and east 2 ft at 9 seconds. Scattered showers in the morning for tinian and saipan waters.

Wednesday Night

Northeast wind 15 kt. Seas 5 to 7 ft. Wave detail: northeast 6 ft at 8 seconds, northeast 3 ft at 5 seconds and east 2 ft at 10 seconds.

Thursday

Northeast wind 15 kt. Seas 5 to 6 ft. Wave detail: northeast 4 ft at 9 seconds, northeast 3 ft at 5 seconds and east 3 ft at 9 seconds.

Thursday Night

Northeast wind 10 to 15 kt. Seas 4 to 6 ft. Wave detail: northeast 4 ft at 9 seconds, northeast 3 ft at 4 seconds and east 3 ft at 9 seconds.

Friday

Northeast wind 10 to 15 kt. Seas 4 to 7 ft. Wave detail: northeast 5 ft at 9 seconds, east 3 ft at 5 seconds and east 3 ft at 9 seconds. A chance of showers.

Saturday

East wind 15 to 20 kt. Seas 6 to 8 ft. Wave detail: northeast 7 ft at 9 seconds and east 4 ft at 6 seconds. A chance of showers. A chance of showers.

Sunday

East wind 20 kt. Seas 8 to 9 ft. Wave detail: east 8 ft at 9 seconds and east 5 ft at 6 seconds.