Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest
Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. Read More >
Hazardous Weather Conditions
Last Update: 452 AM ChST Wed Apr 15 2026
For More Weather Information:
20NM NW Apra Harbor GU
Marine Zone Forecast
...TROPICAL STORM WARNING IN EFFECT...
Today
West tropical storm force wind to 45 kt with gusts to 65 kt. Seas 20 to 24 ft. Numerous showers with isolated thunderstorms.
Tonight
Southwest tropical storm force wind to 35 kt with gusts to 50 kt. Seas 16 to 19 ft. Scattered showers with isolated thunderstorms.
Thursday
Southwest wind 30 kt with gusts to 45 kt. Seas 13 to 16 ft. Scattered showers with isolated thunderstorms.
Thursday Night
Southwest wind 20 to 25 kt with gusts to 35 kt. Seas 11 to 14 ft. Isolated thunderstorms early in the evening.
Friday
West wind 15 to 20 kt. Seas 9 to 12 ft. Wave detail: northwest 11 ft at 10 seconds and west 4 ft at 6 seconds.
Saturday
Southwest wind 10 to 15 kt. Seas 6 to 8 ft. Wave detail: northwest 8 ft at 10 seconds and west 3 ft at 4 seconds.
Sunday
Southwest wind 5 to 10 kt. Seas 5 to 7 ft. Wave detail: north 7 ft at 10 seconds.
Additional Forecasts and Information
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