A dry upper low off the coast will shift inland tuesday with low level offshore flow. A couple of upper troughs will bring a chance of showers with low snow levels wednesday through friday. Drying is expected next weekend.
An upper low off the coast will shift over western washington tuesday with low level offshore flow continuing. It looks dry through tuesday except for a slight chance of showers near the cascade crest tuesday as some moisture gets pulled up from the south. A second upper low will approach from the west on wednesday. This low will also pull up moisture from the south ahead of it. The gfs and gem keep most of the shower chances east of puget sound while the ecmwf is a bit wetter and further west with the shower chances. The forecast is a blend but leans a bit towards the gfs. Snow levels will be low and the lowlands, especially higher hills, will once again flirt with snow. For now, the gfs suggests it should be a little too warm for lowland accumulations but this will need to be watched. Schneider
An upper low will slowly shift through the area thursday and friday. Models have not been showing good run to run consistency with the details but the general idea is for cool and showery weather both days with low snow levels continuing. Drying is expected next weekend as the upper low slowly shifts inland and is replaced by weak high pressure aloft. Schneider
River flooding is not expected for the next 7 days.
Wa...none. Pz...small craft advisory until 10 am pst this morning for coastal waters from point grenville to cape shoalwater 10 to 60 nm.
small craft advisory until 4 pm pst this afternoon for central u.s. Waters strait of juan de fuca-coastal waters from cape flattery to james island 10 to 60 nm-coastal waters from cape flattery to james island out 10 nm-coastal waters from james island to point grenville 10 to 60 nm-coastal waters from james island to point grenville out 10 nm-northern inland waters including the san juan islands-west entrance u.s. Waters strait of juan de fuca.
Offshore flow will continue through tuesday as low pressure develops across the offshore waters near vancouver island and high pressure continues to reside east of the rocky mountains. Winds within this flow regime will continue to weaken through the day on monday. The small craft advisory for the northern inland waters, the central and western strait and the majority of the coastal waters looks good and will remain in place through monday afternoon. The exception will be the southern coastal waters where winds look to drop below small craft this morning. Elsewhere winds will be below 20kts. No marine headlines are anticipated monday night through tuesday at this time as an upper low hovers over the local area and provides for weak gradients and weak winds.
Winds will turn onshore wednesday as a low off of the california coast moves north into the pacific northwest amidst a stronger troughing signal offshore.
Kovacik
Westerly flow aloft will become southwesterly during the morning hours with an upper level low located south of vancouver island. The air mass is dry and stable. Vfr conditions with a few high clouds around. Surface flow generally northeasterly with high pressure over central british columbia. Winds mainly 5-12 knots with a few lingering gusts up to 23 knots at kbli.
Ksea...vfr conditions with few high clouds around. Winds east to northeast 5-12 knots. Jd