Cape Flattery to Cape Shoalwater WA between 60 and 150 NM Offshore Forecast
| Today...N Winds 10 To 20 Kt, Diminishing To 5 To 15 Kt Early, Then, Becoming Variable. Seas 6 To 10 Ft. |
| Tonight...Nw Winds 5 To 15 Kt. Seas 5 To 7 Ft. |
| Sat...N To Nw Winds 5 To 15 Kt. Seas 5 To 8 Ft. |
| Sat Night...Nw Winds 5 To 15 Kt, Becoming N To Nw 10 To 20 Kt. Seas 6 To 9 Ft. |
| Sun...Nw Winds 10 To 20 Kt. Seas 7 To 9 Ft. |
| Sun Night...Nw Winds 15 To 25 Kt. Seas 8 To 12 Ft. |
| Mon...Nw Winds 15 To 25 Kt. Seas 9 To 12 Ft. |
| Mon Night...Nw Winds 15 To 25 Kt. Seas 8 To 9 Ft. |
| Tue...Nw Winds 10 To 20 Kt, Becoming 10 To 15 Kt. Seas 6 To 8 Ft. |
| Tue Night...N To Nw Winds 10 To 15 Kt. Seas 6 To 7 Ft. |
| Area Forecast Discussion National Weather Service Seattle WA 832am PDT Fri April 24 2026 Synopsis Upper level ridge offshore extending into Northern British Columbia combined with an upper level low over the Canadian Prairies giving Western Washington dry northerly flow aloft through the weekend. The low will move east Monday with the upper level ridge moving over the area in the middle of next week. Short Term - Today through Sunday No significant changes made to the forecast this morning. The previous discussion can be found below along with updates to the aviation section: Satellite imagery shows some stubborn stratus over Pierce county and in the Skagit River Valley early this morning. Patchy fog over the Southwest Interior with local visibilities a half mile or less. Mostly clear skies over the remainder of the area. Cooler locations at 3 am/10z were in the upper 30s. Most of the area was in the lower to mid 40s. Upper level ridge offshore extending into Northern British Columbia combining with an upper level low well to the east giving Western Washington dry northerly flow aloft today. Stubborn stratus along the the patchy fog will dissipate later today leaving mostly sunny skies. Highs in the upper 50s to mid 60s. Cool night tonight with clear skies and light flow in the lower levels. Have issued a frost advisory for portions of the Southwest Interior and Sound Puget Sound for low temperatures near freezing Saturday morning. Elsewhere lows in the mid to upper 30s. LIttle change in the pattern over the weekend with dry northerly flow aloft continuing over the area. Slight chance Sunday that weak instablilty over the Cascades late in the day could trigger a shower. Highs in the 60s. Lows in the mid 30s to lower Long Term - Sunday Night Through Thursday Models in good agreement that a weak shortwave rotating around the upper level low will increase the cloud cover Monday as well as the chances for showers over the Cascades. With the flow aloft north northeasterly showers could float down into the Cascade foothills. Upper level low moving east Tuesday and Wednesday with the upper level ridge offshore drifting over Western Washington in the middle of next week. Highs in the lower to mid 60s Monday and Tuesday warming to the 60s and lower 70s Wednesday and Thursday. Lows in the upper 30s to mid 40s. Seattle April rainfall through the 23rd is 2.73 inches. Current forecast is dry for the rest of the month. The normal monthly April rainfall for Seattle is 3.18 inches. If the forecast holds and April ends up below normal that will make 30 out of the last 40 months ( since the start of 2023 ) Seattle will have Marine The overall pattern remains fairly consistent through the next 7 days with higher pressure well offshore and lower pressure inland, for mostly northerly winds over the coastal waters. Easterly winds through the Strait will continue through Saturday, with onshore flow resuming Sunday into next week. Seas will remain in the 4 to 8 ft range. Northerly winds through the East Strait down through Admiralty Inlet and Puget Sound will be breezy this afternoon and evening, with winds reaching 15 to 20 kt. 62 Hydrology No river flooding in the next 7 days. NOAA Seattle WA Office: Watches - Warnings - Advisories WA...Frost Advisory from 11pm this evening to 10am PDT Saturday for Lowlands of Lewis and Southern Thurston Counties- Lowlands of Pierce and Southern King Counties-Olympia and Southern Puget Sound-Southern Hood Canal. PZ...None. |
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