Sunrise 5:46 AM   Sunset 8:27 PM Moonrise 2:21 AM   Moonset 11:08 AM

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PZZ132 East Entrance U.s. Waters Strait Of Juan De Fuca- 235 Pm Pdt Wed May 1 2024
Tonight - W wind to 10 kt. Wind waves 1 ft or less. Thu - NW wind to 10 kt. Wind waves 1 ft or less. Thu night - W wind to 10 kt becoming sw after midnight. Wind waves 1 ft or less. Fri - SE wind 10 to 20 kt. Wind waves 1 to 3 ft. Fri night - SE wind 15 to 25 kt becoming S 10 to 20 kt after midnight. Wind waves 2 to 4 ft. Sat - W wind 5 to 15 kt rising to 15 to 25 kt in the afternoon. Wind waves 2 ft or less building to 2 to 4 ft in the afternoon. Sat night - W wind 15 to 25 kt becoming sw 5 to 15 kt after midnight. Wind waves 3 to 5 ft subsiding to 2 ft or less after midnight. Sun - SW wind 5 to 15 kt. Wind waves 2 ft or less. Mon - SW wind 5 to 15 kt. Wind waves 2 ft or less.

PZZ100 235 Pm Pdt Wed May 1 2024
Synopsis for the northern and central washington coastal and inland waters - High pressure will reside over the coastal waters through evening. A system offshore will move southeast tonight and continue to push into northern oregon Thursday morning. Weak high pressure will rebuild over the waters Thursday night into Friday before the next system moves into the area waters Friday night into Saturday for likely headlines. Another system will arrive late in the weekend.

FXUS66 KSEW 012146 CCA AFDSEW

Area Forecast Discussion...CORRECTED National Weather Service Seattle WA 246 PM PDT Wed May 1 2024

SYNOPSIS
Another weak system will slide to the south tonight bringing in light shower activity. Drier and warmer conditions are expected Thursday. More precipitation arrives in time for Friday, the weekend, and beyond.

SHORT TERM /TONIGHT THROUGH SATURDAY/
A weak frontal system will clip SW WA tonight for a chance of rain (mainly coast and south of Olympia). We're seeing a mix of mid and high clouds on satellite associated with this system with sunnier skies toward the north. Temperatures will be chilly again overnight and in the mid to upper 30s over the south sound. Patchy frost is possible although should be brief.

A weak ridge will build offshore on Thursday and we're looking for mainly dry weather for western WA. We could see a few pop-up showers in the Cascades otherwise dry in the lowlands. The air mass will be a little warmer with temperatures in the 60s. The ridge axis moves inland Thursday night with dry weather continuing.

The pattern changes as we move into Friday. By then the ridge shifts farther east and inland while a deep upper low settles down over the NE Pac. Attached to this low is a frontal boundary with rain reaching the coast in the morning then spreading inland during the afternoon.

The upper low shifts south off the coast on Saturday but we're still under moist/diffluent flow over western WA. This looks like more rain spreading over the region through much of the day (and not much of a break). With cooler and cloudier conditions we're only expecting highs in the lower to mid 50s. 33

LONG TERM /SUNDAY THROUGH WEDNESDAY/
The broad upper level low shifts inland over the weekend and is still meandering over the West as we move into Sunday. There's still plenty of wrap-around moisture moving into western WA with additional showers expected.
Snow levels are around 4500 ft for rain at the Cascade passes.
Moving on, we're under solid onshore flow early next week keeping us cool and wet through the period. Onshore flow eases by Wednesday and drier N/NW flow may give us a brief break in the action. 33

AVIATION
A weak low pressure system will continue to shift southward away from western Washington this evening, with northerly flow aloft prevailing. Mostly VFR at all terminals this afternoon, with some mid to high level clouds streaming in along the coast and south of Olympia. Otherwise, this trend will continue through the evening and into the overnight period where VFR will continue with likely clear skies. Latest guidance suggest some patchy fog to develop within the Southwest Interior and possibly near central Puget Sound, with at least a 20-25% of MVFR conditions early Thursday morning (09z-14z). Low level winds will remain S/SW this afternoon before switching to the north around 03z and staying around 4 to 8 knots.

KSEA...VFR conditions this afternoon as just some mid to high level clouds linger around. Clouds will eventually break apart for clear skies tonight with VFR continuing. Some patchy fog may be possible early Thursday morning in the vicinity of the terminal around 11z-14z, but there is a 20% chance of MVFR conditions if fog were to develop. S/SW winds this afternoon around 5 to 10 knots will shift to the north around 03z-05z this evening and generally maintain the same speeds through Thursday morning.

Maz

MARINE
Onshore flow will continue this afternoon with surface high pressure over the coastal waters. A weak low pressure system will continue to move south into the Oregon border tonight, allowing for winds over the coastal waters to increase and turn southerly. Latest guidance keeps winds over the coastal waters around 10 to 20 kts, remaining under any headline thresholds.

Weak high pressure will move through the waters Thursday into Friday, before a stronger system moves in Friday into Saturday with small craft southerlies. Another system looks to move through during the weekend.

Combined seas this afternoon are around 5 to 7 feet and will subside to around 3 to 5 feet tonight. Seas will remain 3 to 5 feet before increasing on Friday.

Maz

HYDROLOGY
No river flooding is expected over the next 7 days.

SEW WATCHES/WARNINGS/ADVISORIES
WA...None.
PZ...None.

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Sandy Point
Click for Map
Wed -- 01:27 AM PDT     8.88 feet High Tide
Wed -- 03:21 AM PDT     Moonrise
Wed -- 04:27 AM PDT     Last Quarter
Wed -- 05:49 AM PDT     Sunrise
Wed -- 12:08 PM PDT     Moonset
Wed -- 06:00 PM PDT     -0.41 feet Low Tide
Wed -- 08:27 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION

Sandy Point, Lummi Bay, Washington, Tide feet

Hale Passage
Click for Map
Wed -- 01:15 AM PDT     -0.00 knots Slack
Wed -- 03:17 AM PDT     Moonrise
Wed -- 04:17 AM PDT     -0.47 knots Max Ebb
Wed -- 04:27 AM PDT     Last Quarter
Wed -- 05:52 AM PDT     Sunrise
Wed -- 08:43 AM PDT     -0.13 knots Min Ebb
Wed -- 12:12 PM PDT     Moonset
Wed -- 02:09 PM PDT     -0.88 knots Max Ebb
Wed -- 06:04 PM PDT     0.00 knots Slack
Wed -- 08:23 PM PDT     Sunset
Wed -- 09:46 PM PDT     1.57 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION

Hale Passage, 0.5 miles SE of Lummi Pt, Washington Current, knots

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