Sunrise 5:21 AM   Sunset 8:51 PM Moonrise 2:54 PM   Moonset 2:30 AM

  Print   HELP   Reset   Save   Recall  New

PZZ133 Northern Inland Waters Including The San Juan Islands- 210 Am Pdt Sat May 18 2024
Today - W wind 5 to 15 kt. Wind waves 2 ft or less. Tonight - W wind 5 to 15 kt. Wind waves 2 ft or less. Sun - W wind to 10 kt in the morning becoming light. Wind waves 1 ft or less in the morning becoming less than 1 ft. Sun night - SW wind to 10 kt. Wind waves 1 ft or less. Mon - Light wind. Wind waves less than 1 ft. Mon night - SW wind to 10 kt becoming 5 to 15 kt after midnight. Wind waves 2 ft or less. Tue - S wind to 10 kt. Wind waves 1 ft or less. Wed - SW wind to 10 kt. Wind waves 1 ft or less.

PZZ100 210 Am Pdt Sat May 18 2024
Synopsis for the northern and central washington coastal and inland waters - Broad surface ridging will remain centered well offshore with low pressure inland and will result in onshore flow for much of the forecast period. High pressure well offshore looks to remain into early next week. Another frontal system looks to traverse the area waters on Tuesday.

FXUS66 KSEW 180928 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 228 AM PDT Sat May 18 2024

SYNOPSIS
An upper level trough will produce cool and occasionally showery conditions across Western Washington today into early Sunday. The trough will move east of the region by Sunday afternoon and a weak upper level ridge will give drier and somewhat warmer conditions on Monday. Another trough will arrive on Tuesday for a return to cool and unsettled conditions for much of next week.

SHORT TERM /TODAY THROUGH MONDAY/
Early morning satellite imagery shows the next in a series of upper level troughs slipping down the British Columbia coast toward the region. Onshore flow will increase through the day as this system digs southward through the area. Shower coverage will increase later this morning...especially across the northern half of the CWA A convergence zone is likely to form by late morning then gradually drag southward across Puget Sound through the afternoon before dissipating in the Cascades late this evening. High temperatures will be a good 5 to 10 degrees below normal.

The upper trough axis will shift east of the Cascades tonight and only a few remnant showers in the Cascades are expected by Sunday morning. Drier northerly flow aloft takes over Sunday afternoon and most lowland locations should see some afternoon sunshine...allowing high temperatures to nudge upward a few degrees. Weak upper ridging will move across the area on Monday and low level onshore flow will weaken. That spells drier and marginally warmer conditions...if only briefly.

LONG TERM /TUESDAY THROUGH FRIDAY/
By early Tuesday, the ridge gives way to yet another upper trough digging southward over British Columbia. We'll see a return to cool and wetter conditions on Tuesday. The QPF totals with this system look fairly robust by late May standards. Cool and showery conditions look to continue into Wednesday as the upper trough continues to progress southeastward across the Pacific Northwest. The forecast details become more uncertain late next week. In general, ensembles maintain negative height anomalies over the western third of the lower 48 with strong ridging centered over the Gulf of Alaska.
But there are considerable differences amongst ensemble members with the placement and depth of the trough over the Western US.
Current forecast from the NBM have mostly chance PoPs and temps a little below average late next week. This seems like a reasonable forecast until the overall picture becomes clearer. 27

AVIATION
A weak upper level trough will cross western WA today for a chance of showers. The flow aloft is westerly. The low level air mass remains moist with MVFR ceilings likely in the central sound (where convergence zone showers are also expected).
Showers will decrease in coverage tonight as the trough exits east. With onshore flow, MVFR cigs will likely reform during the overnight hours tonight. 33

KSEA...MVFR conditions this morning with light showers in the vicinity. Winds shifting to N around 21z then back to S by 06z tonight. 33

MARINE
High pressure over the NE Pacific will maintain onshore flow across western WA through the weekend. Strongest winds will be over the Strait of Juan de Fuca with Small Craft Advisory winds extending through late tonight. The next frontal system will reach the region early next week. 33



HYDROLOGY
The daily hydrology discussion has ended until the start of the next rainy season; it will only be updated as needed.

SEW WATCHES/WARNINGS/ADVISORIES
WA...None.
PZ...Small Craft Advisory until 5 AM PDT Sunday for Central U.S.
Waters Strait Of Juan De Fuca-East Entrance U.S. Waters Strait Of Juan De Fuca.

toggle option: (graph/table)

Chuckanut Bay
Click for Map
Sat -- 02:16 AM PDT     7.90 feet High Tide
Sat -- 03:30 AM PDT     Moonset
Sat -- 05:24 AM PDT     Sunrise
Sat -- 09:21 AM PDT     2.20 feet Low Tide
Sat -- 03:22 PM PDT     5.30 feet High Tide
Sat -- 03:53 PM PDT     Moonrise
Sat -- 08:14 PM PDT     3.47 feet Low Tide
Sat -- 08:49 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION

Chuckanut Bay, Washington, Tide feet

Sinclair Island
Click for MapFlood direction 307° true
Ebb direction 112° true

Sat -- 12:12 AM PDT     0.10 knots Max Flood
Sat -- 02:05 AM PDT     -0.00 knots Slack
Sat -- 03:31 AM PDT     Moonset
Sat -- 05:25 AM PDT     Sunrise
Sat -- 07:33 AM PDT     -0.82 knots Max Ebb
Sat -- 11:59 AM PDT     0.00 knots Slack
Sat -- 02:43 PM PDT     0.05 knots Max Flood
Sat -- 03:10 PM PDT     -0.00 knots Slack
Sat -- 03:54 PM PDT     Moonrise
Sat -- 07:34 PM PDT     -0.35 knots Max Ebb
Sat -- 08:49 PM PDT     Sunset
Sat -- 10:37 PM PDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION

Sinclair Island, 1 mile NE of, Washington Current, knots

Full Color Weather Map

Link to Loop


Other links: GEOS-West     Contential US     Full GOES-East

Seattle/Tacoma, WA,