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PZZ135 Puget Sound And Hood Canal- 241 Am Pst Tue Nov 28 2023
.dense fog advisory in effect until 10 am pst this morning...
Today..Light wind. Wind waves less than 1 ft. Areas of fog and patchy freezing fog in the morning then patchy fog in the afternoon.
Tonight..N wind to 10 kt. Wind waves 1 ft or less. Patchy fog.
Wed..Light wind. Wind waves less than 1 ft. Patchy fog.
Wed night..Light wind becoming S to 10 kt after midnight. Wind waves less than 1 ft becoming 1 ft or less after midnight.
Thu..S wind 5 to 15 kt. Wind waves 2 ft or less.
Thu night..S wind 5 to 15 kt. Wind waves 2 ft or less.
Fri..S wind 15 to 25 kt easing to 5 to 15 kt. Wind waves 2 to 4 ft subsiding to 2 ft or less.
Sat..S wind 5 to 15 kt. Wind waves 2 ft or less.

PZZ100 241 Am Pst Tue Nov 28 2023
Synopsis for the northern and central washington coastal and inland waters..A surface ridge remains centered east of the cascades with low pressure offshore producing weak offshore flow. The ridge will weaken through Wednesday for light winds across area waters. A weak frontal system will arrive on Thursday followed by a more vigorous system on Friday.

FXUS66 KSEW 281033 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 233 AM PST Tue Nov 28 2023

SYNOPSIS
The upper ridge slides eastward later Tuesday with more split flow on Wednesday. Dry weather, colder overnight temperatures, and widespread morning fog through Wednesday. A weak front moves across Western Washington Thursday with a more active pattern Friday into next week.

SHORT TERM /TODAY THROUGH THURSDAY/
Satellite imagery and obs early this morning shows widespread fog across southern Puget Sound, spreading towards Grays Harbor County, as well as across western Whatcom County and towards the Strait of Juan de Fuca.
Temperatures in these areas generally range 25 to 35 degrees, for this reason, a Freezing Fog Advisory is in place for the aforementioned areas, with this forecast update including Seattle metro. For those going out this morning, give yourself more time with potential for areas of slick roads and sidewalks due to the moisture and temperature at the surface. Some improvement to visibilities late morning into the afternoon, however, given the stagnant pattern and light flow, continued fog can be expected through the afternoon towards south Puget Sound (including Olympia and Shelton). Although the ridge axis begins to slide eastward later today into tonight, a split flow regime for the Pacific Northwest will result in another dry, cold morning on Wednesday.
Fog will once again become widespread across Puget Sound Wednesday morning. Highs through Wednesday mainly in the low to mid 40s, but highs may continue to remain in the 30s where fog does not clear, particularly the southern Puget Sound area.

Troughing begins to develop across the NE Pacific Wednesday night into Thursday morning highlighting a pattern change to Western Washington. A front will slide across the area Thursday into Thursday night for lowland rain and light mountain snow. Snow levels for this initial system on Thursday will range 1500 to 2500 feet for accumulating snow at the Cascade Passes. Snow amounts through Thursday night ranging 2 to 5 inches for both Snoqualmie and Stevens Pass. A more active pattern begins on Friday for additional mountain snow. Temperatures on Thursday similar with highs in the mid to upper 40s.

LONG TERM /FRIDAY THROUGH MONDAY/
The more active weather pattern continues through this period as multiple systems move across the Pacific Northwest for lowland rain, mountain snow, and breezy winds. Troughing will provide a bit more of an influence Friday into Saturday allowing for cooler temperatures, and thus snow levels will be lower during this period. Guidance suggests snow levels generally 2000-3000 feet for moderate to heavier snow possible over both Snoqualmie and Stevens Pass. Ensemble guidance suggests ridging then begins to build across the Western US Sunday into early next week, for more of a southwest flow regime over Western Washington. NBM surface temperatures depicts this warming trend well, with highs into the low 50s early next week. However, uncertainty does exist as far as the extent of ridging into the Pacific Northwest with troughing well offshore. This pattern would likely continue to support the active weather trend for additional breezy winds and potentially heavier rain early to middle of next week. JD

AVIATION
An upper ridge axis will shift east of the region today with light south to southwest flow aloft developing. The low level flow is light offshore. Substantial low level moisture remains in place across the interior of Western Washington from the Chehalis Gap northward through Puget Sound as well as the Strait of Juan de Fuca. Areas of LIFR/IFR in stratus and/or fog will persist through midday before scattering out. However, much like yesterday, the low clouds may not entirely scatter out from south Puget Sound southward. Widespread low clouds and fog are expected to develop again tonight.

KSEA...LIFR/IFR in shallow fog expected through at least mid-morning with surface vsbys below 1 mile. Surface gradients are similar to those of 24 hours ago so will likely follow a similar timeline with fog gradually lifting around 18Z then scattering out by around 20Z.
Flat gradients support the development of LIFR conditions again tonight. UW-WRF model low level cloud water output would suggest that fog will develop earlier tonight with more extensive coverage for Wednesday morning. Surface winds light and variable. 27

MARINE
Surface ridge remains centered east of the Cascades with low pressure offshore producing weak offshore flow. The ridge will weaken through Wednesday for light winds across area waters.
The light surface winds will remain conducive to widespread visibility restrictions in night and morning fog across interior waters. A relatively weak frontal system will move into the coastal waters Thursday morning then push onshore in the afternoon. A more vigorous system is expected to follow on Friday with headlines likely for most of the area waters. A series of systems are then expected to follow for an extended period of active weather.

Coastal seas will remain below 10 feet through Thursday then build to 10+ feet Friday and likely remain hazardous for the foreseeable future. 27

HYDROLOGY
With the upcoming pattern change suggesting more rain in the forecast, area rivers are likely to see rises through the weekend. This will continue to be monitored and appropriate hydrologic products will be issued as confidence grows in the rainfall forecast.

SEW WATCHES/WARNINGS/ADVISORIES
WA...Freezing Fog Advisory until 10 AM PST this morning for Bremerton and Vicinity-Hood Canal Area-Seattle and Vicinity-Southwest Interior-Tacoma Area-Western Whatcom County.

PZ...Dense Fog Advisory until 10 AM PST this morning for Northern Inland Waters Including The San Juan Islands-Puget Sound and Hood Canal.

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Rocky Point
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Tue -- 07:03 AM PST     16.28 feet High Tide
Tue -- 07:33 AM PST     Sunrise
Tue -- 09:25 AM PST     Moonset
Tue -- 12:24 PM PST     8.29 feet Low Tide
Tue -- 04:25 PM PST     Sunset
Tue -- 04:46 PM PST     14.32 feet High Tide
Tue -- 05:08 PM PST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION

Rocky Point, Eld Inlet, Washington, Tide feet

Eld Inlet Entrance
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Tue -- 03:14 AM PST     1.57 knots Max Flood
Tue -- 06:30 AM PST     -0.01 knots Slack
Tue -- 07:33 AM PST     Sunrise
Tue -- 09:25 AM PST     Moonset
Tue -- 09:48 AM PST     -0.50 knots Max Ebb
Tue -- 12:38 PM PST     0.00 knots Slack
Tue -- 03:02 PM PST     0.64 knots Max Flood
Tue -- 04:25 PM PST     Sunset
Tue -- 04:38 PM PST     -0.00 knots Slack
Tue -- 05:08 PM PST     Moonrise
Tue -- 08:53 PM PST     -0.88 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION

Eld Inlet Entrance, Washington Current, knots

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