Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains
A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >
| NWS Forecast for: Saipan Coastal Waters (PMZ154) Issued by: National Weather Service Tiyan, GU Last Update: 931 PM ChST Sat Apr 11 2026 | |
Tonight: Northeast wind 20 to 25 kt. Seas 9 to 11 ft. Wave detail: east 9 ft at 10 seconds and northeast 6 ft at 7 seconds. Sunday: Northeast wind 30 kt. Seas 11 to 14 ft. Scattered showers with isolated thunderstorms. Sunday Night: Northeast wind 30 kt with gusts to 40 kt. Seas 14 to 17 ft. Scattered showers with isolated thunderstorms. Monday: Northeast tropical storm force wind to 40 kt with gusts to 55 kt. Seas 17 to 19 ft. Scattered showers with isolated thunderstorms. Monday Night: Tropical storm conditions possible. Scattered showers with isolated thunderstorms. Tuesday: Tropical storm conditions possible. Numerous heavy showers with isolated thunderstorms. Visibility 1 nm or less. Wednesday: Tropical storm conditions possible. A chance of showers with isolated thunderstorms. Thursday: South wind 20 to 25 kt. Seas 10 to 13 ft. Wave detail: southwest 10 ft at 11 seconds and south 7 ft at 8 seconds. A chance of showers with a slight chance of thunderstorms. | |
| Zone Forecast: Saipan Coastal Waters (PMZ154) | |
Visit your local NWS office at: https://www.weather.gov/gum |