Heavy Rainfall in the Southern Plains and Mississippi Valley; Thunderstorms in Eastern Colorado on Thursday
A multiple day heavy rainfall event will begin to set up from the Southern Plains into the Mississippi Valley Thursday, peaking in intensity over the holiday weekend. Widely scattered thunderstorms are expected to develop across eastern Colorado Thursday afternoon and evening. Large hail will be the primary hazard. Read More >
| NWS Forecast for: Coastal Waters From Cape Flattery To James Island 10 To 60 Nm (PZZ170) Issued by: National Weather Service Seattle, WA Last Update: 151 PM PDT Wed May 20 2026 | |
| Tonight: NW wind 15 to 20 kt, easing to 10 to 15 kt late this evening and overnight. Seas 6 to 9 ft. Wave detail: NW 8 ft at 7 seconds and W 9 ft at 11 seconds. Thu: NW wind 10 to 15 kt, rising to 15 to 20 kt in the afternoon. Seas 5 to 8 ft. Wave detail: NW 7 ft at 6 seconds and NW 7 ft at 10 seconds. Thu Night: NW wind 15 to 20 kt. Seas 6 to 9 ft, building to 8 to 11 ft after midnight. Wave detail: NW 10 ft at 9 seconds. Fri: NW wind 15 to 20 kt. Seas 8 to 11 ft, subsiding to 6 to 8 ft in the afternoon. Wave detail: NW 7 ft at 8 seconds and W 9 ft at 9 seconds. Fri Night: NW wind 15 to 20 kt. Seas 7 to 10 ft. Wave detail: NW 2 ft at 5 seconds, W 9 ft at 9 seconds and SW 2 ft at 17 seconds. Sat: NW wind 15 to 20 kt. Seas 8 to 11 ft. Wave detail: NW 8 ft at 6 seconds, W 10 ft at 9 seconds and SW 2 ft at 17 seconds. Sat Night: NW wind 15 to 20 kt. Seas 9 to 11 ft. Wave detail: NW 9 ft at 7 seconds, NW 11 ft at 10 seconds and SW 3 ft at 17 seconds. Sun: NW wind 10 to 15 kt, backing to W in the afternoon. Seas 8 to 10 ft, subsiding to 7 to 8 ft in the afternoon. Wave detail: NW 7 ft at 7 seconds, W 9 ft at 14 seconds and SW 2 ft at 16 seconds. Sun Night: SW wind 10 to 15 kt, becoming S 15 to 20 kt after midnight. Seas 6 to 7 ft. Wave detail: NW 2 ft at 6 seconds, SW 7 ft at 12 seconds and S 2 ft at 12 seconds. A chance of rain in the evening, then rain after midnight. Mon: SW wind 15 to 20 kt. Seas 7 to 10 ft, building to 9 ft in the afternoon. Wave detail: SW 9 ft at 10 seconds and SW 2 ft at 15 seconds. Rain likely, mainly in the morning. Mon Night: NW wind 10 to 15 kt. Seas 9 to 10 ft. Wave detail: W 10 ft at 12 seconds and SW 2 ft at 16 seconds. A chance of rain in the evening. | |
| Zone Forecast: Coastal Waters From Cape Flattery To James Island 10 To 60 Nm (PZZ170) | |
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