Sunrise 5:55 AM   Sunset 8:17 PM Moonrise 12:00 AM   Moonset 6:37 AM

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PZZ135 Puget Sound And Hood Canal- 301 Am Pdt Sat Apr 27 2024
.small craft advisory in effect from 5 am pdt early this morning through this afternoon - .
Today - S wind 15 to 25 kt easing to 10 to 20 kt in the afternoon. Wind waves 2 to 4 ft. Tonight - S wind 10 to 20 kt. Wind waves 1 to 3 ft. Sun - SW wind 10 to 20 kt. Wind waves 1 to 3 ft. Sun night - SW wind 15 to 25 kt becoming S 10 to 20 kt after midnight. Wind waves 2 to 4 ft. Mon - SW wind 5 to 15 kt. Wind waves 2 ft or less. Mon night - SW wind 5 to 15 kt. Wind waves 2 ft or less. Tue - S wind 5 to 15 kt becoming sw to 10 kt. Wind waves 2 ft or less. Wed - Light wind. Wind waves less than 1 ft.

PZZ100 301 Am Pdt Sat Apr 27 2024
Synopsis for the northern and central washington coastal and inland waters - The next frontal system will move across the area later this evening high pressure will build over the waters Tuesday night and Wednesday with breezy southerly winds. Active weather continues with the next frontal systems poised to move over the area waters Monday and Thursday.

FXUS66 KSEW 271047 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 347 AM PDT Sat Apr 27 2024

SYNOPSIS
The active weather pattern will continue this weekend into next week as a series of fronts and upper level troughs pass through the region. Most of the activity will be in the form of showers, with heavier precipitation possible along the coast, Olympics and Cascades. Snow will also be possible in Snoqualmie and Stevens Passes Monday as cold air brings the snow levels down.
Expect temperatures to top out in the 50s and 60s, with warmer temperatures towards the end of next week.

SHORT TERM /TODAY THROUGH MONDAY/
A quiet start to the day with a few showers ongoing along the coast and Cascades. Most of Puget Sound remained dry overnight with low clouds. A shortwave trough passed through yesterday, with a break in between troughs early this morning. A couple additional troughs sit to the west that will come over land in the short term. The first one today is weak and will combined with an occluded front off the coast to produce scattered showers today. Coverage will increase in the morning hours as a line of light rain forms, which will break apart as it moves inland and scatter out. The heaviest rainfall will be along the coast with 0.50-0.75 inches of QPF possible through Sunday morning. Remaining areas should get around one to two tenths of an inch of QPF. Snow showers will be possible for the peaks of the Olympics and Cascades, but amounts will remain light with just a trace or an inch by Sunday morning.

Attention then turns to a more potent mid-latitude cyclone dropping down from Alaska/Canada on Sunday/Monday. The center of this low will slowly drop to the southeast, sitting in southern B.C. on Monday, with a trough and jet core extending well south into Oregon/northern California. With cool air aloft arriving with this low (500 mb temps down to -35 C), snow levels will drop to just under 2,000 ft Sunday night/Monday morning. Morning low temperatures will dip into the upper 30s/low 40s in the lowlands, with some areas below freezing at higher elevations. Moisture coming in with the jet/westerlies will support the chance for snow in some of the passes Sunday night/Monday (Snoqualmie and Stevens), as well as areas higher than 2,000 ft. At this time, impacts appear to be minor for roadways with this system (considering warm grounds, and light snowfall rates). NBM 50th percentile gave 5 inches for Snoqualmie and 4 inches for Stevens.
The higher end of the model brought both passes up a couple inches (7 and 6 inches respectively). Given the upticks in QPF with this system from the past couple days, will continue to monitor changes and consider issuing headlines (if warranted).

For remaining areas below the snow level, the cool air aloft will provide a conditional thunderstorm risk for shower activity that develops on Monday (SPC has western Washington in a general thunder up to the Cascade crest). QPF amounts are not expected to be as heavy down in the lowlands (compared to the Cascades), but shower/thunderstorm activity will be off and on for most of the Sunday night/Monday period. High temperatures will remain cool in the mid 50s in the lowlands (Saturday - Monday). Winds remain light out of the southwest at 5 to 10 mph (few gusts possible near Puget Sound/Strait of Juan de Fuca waters).

LONG TERM /TUESDAY THROUGH FRIDAY/
The mid latitude low will remain over Washington through mid week as it digs southward through the state. Cool air will remain planted with this system as it fills in and begins to dissipate to the east over the Rockies by mid week. With less moisture available, the shower chances will decrease Tuesday/Wednesday. Snow levels will begin to increase Wednesday/Thursday as the trough departs to the southeast. Ensemble/deterministic models are agreeing more for drier and warmer weather to finish the week (although some still showing a trough/frontal system passing through - so will keep a conditional shower chance through the end of next week).
Temperatures will increase into the 60s by Wednesday, with a shot of 70s by next Saturday. Winds will also remain light.

HPR

AVIATION
West-southwest flow aloft as an upper level trough moves across the Pacific Northwest into this evening. Southwest flow continues across the Puget Sound terminals and west-southwest at HQM and CLM from 10 to 15 kt this morning into the early afternoon.

A mix of IFR and MVFR CIGs this morning with drizzle and scattered showers across western Washington. Widespread light rain will move back into the region in association with the next frontal system from 18-20Z, with CIGs rising, potentially to low-end VFR levels briefly for a few hours from 19-00Z, though confidence on this evolution is low with a 30% chance for MVFR restrictions to continue through the evening. Regardless, CIGs look to trend back towards MVFR after 02Z this evening through much of tonight.

KSEA...IFR CIGs this morning with drizzle. A gradual improvement in CIGs is expected through the morning with a brief period of low-end VFR possible from 20-00Z, though there's a 30% chance we hang on to MVFR through the afternoon. Widespread stratiform rain is expected to move back into the region with the next frontal system after 20Z.
A gradual trend back to MVFR through the night is expected.
Southwesterly winds through the TAF period, with gusts to 20 kt possible through 22Z this afternoon.

Davis

MARINE
Breezy southerly winds this morning into the early afternoon along and ahead of an incoming occluded front that will move over the area waters this evening, followed by onshore flow.
Expanded Small Craft Advisories into the inner waters with growing confidence for wind gusts above 21 kt (60% chance) for all but the West Entrance to the Strait of Juan de Fuca for a combination of strong southerly pre-frontal winds and post-frontal surge through the Strait. Strongest southerly winds mostly confined to central Puget Sound northward through Admiralty Inlet and Possession Sound.
Marginal wind gusts to SCA thresholds possible Sunday afternoon (35% chance) over the offshore waters with another round of Small Craft Advisories likely through the Strait with another afternoon push.

Seas ranging from 5 to 7 feet this morning will increase to 6 to 9 feet this afternoon and through much of the day Sunday. Seas look to increase to 7 to 9 feet Sunday night into Monday. Seas look to remain below 10 feet Tuesday onward.

Davis

HYDROLOGY
No river flooding is expected over the next seven days.



SEW WATCHES/WARNINGS/ADVISORIES
WA...None.
PZ...Small Craft Advisory from 8 PM this evening to 5 AM PDT Sunday for Central U.S. Waters Strait Of Juan De Fuca.

Small Craft Advisory from 2 PM this afternoon to 5 AM PDT Sunday for East Entrance U.S. Waters Strait Of Juan De Fuca.

Small Craft Advisory from 11 AM this morning to 11 PM PDT this evening for Admiralty Inlet-Northern Inland Waters Including The San Juan Islands.

Small Craft Advisory from 5 AM early this morning to 2 PM PDT this afternoon for Puget Sound and Hood Canal.

Small Craft Advisory from 8 AM this morning to 8 PM PDT this evening for 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-Coastal Waters From Point Grenville To Cape Shoalwater 10 To 60 Nm-Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm.

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Des Moines
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Sat -- 01:57 AM PDT     7.12 feet Low Tide
Sat -- 05:58 AM PDT     Sunrise
Sat -- 06:33 AM PDT     10.43 feet High Tide
Sat -- 07:38 AM PDT     Moonset
Sat -- 02:02 PM PDT     -1.46 feet Low Tide
Sat -- 08:16 PM PDT     Sunset
Sat -- 09:33 PM PDT     11.48 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Des Moines, Washington, Tide feet

Restoration Point
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Sat -- 03:28 AM PDT     0.00 knots Slack
Sat -- 04:11 AM PDT     0.10 knots Max Flood
Sat -- 05:58 AM PDT     Sunrise
Sat -- 06:07 AM PDT     -0.00 knots Slack
Sat -- 07:37 AM PDT     Moonset
Sat -- 10:51 AM PDT     -0.95 knots Max Ebb
Sat -- 02:47 PM PDT     0.00 knots Slack
Sat -- 05:23 PM PDT     0.73 knots Max Flood
Sat -- 08:17 PM PDT     Sunset
Sat -- 09:36 PM PDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION

Restoration Point, 0.6 miles ESE of, Washington Current, knots

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