Sunrise 5:45 AM   Sunset 8:31 PM Moonrise 3:57 AM   Moonset 6:11 PM

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PZZ135 Puget Sound And Hood Canal- 230 Am Pdt Mon May 6 2024
.small craft advisory in effect through this afternoon - .
Today - SW wind 15 to 25 kt. Wind waves 2 to 4 ft. Tonight - NW wind 10 to 20 kt north part. SW wind 10 to 15 kt south part. Wind becoming sw 10 to 20 kt all areas after midnight. Wind waves 1 to 3 ft.Tue - SW wind 5 to 15 kt becoming N 10 to 20 kt in the afternoon. Wind waves 1 to 3 ft. Tue night - N wind 15 to 25 kt becoming S 5 to 15 kt after midnight. Wind waves 2 to 4 ft subsiding to 2 ft or less after midnight. Wed - SW wind to 10 kt becoming N 5 to 15 kt in the afternoon. Wind waves 2 ft or less. Wed night - NE wind 5 to 15 kt. Wind waves 2 ft or less. Thu - N wind 5 to 15 kt. Wind waves 2 ft or less. Fri - N wind to 10 kt. Wind waves 1 ft or less.

PZZ100 230 Am Pdt Mon May 6 2024
Synopsis for the northern and central washington coastal and inland waters - A frontal system will move across the waters early this morning. High pressure will build back over the area tonight and Tuesday with the ridge remaining in place Wednesday into Thursday. A thermally induced surface trough will build northward along the coast later Thursday into Friday.

FXUS66 KSEW 061626 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 926 AM PDT Mon May 6 2024

SYNOPSIS
Cool and showery conditions continue across the region through Tuesday with lowland rain and mountain snow expected.
Expect a Puget Sound Convergence Zone to develop later today and isolated thunderstorms remain possible across the area. A shift in the pattern will develop toward midweek, bringing dry conditions and steadily warming temperatures through the second half of the week.

SHORT TERM /TODAY THROUGH WEDNESDAY/
An approaching front is nearing the coastline this morning, with widespread low clouds and breezy winds across most of western Washington. Expect a rather cloudy and somewhat wet start to the day across the region as the front sweeps across this morning, followed by the trailing upper trough that moves eastward through the day. Behind the front, expect to see widespread showers and isolated thunderstorms across the area. With these thunderstorms and strong showers, the most likely hazard beyond lightning is small hail.

Meanwhile, snow levels will drop and some light snow is possible down to around Stevens Pass and possibly closer to Snoqualmie Pass by the evening. While general amounts look to be rather limited, a developing Puget Sound Convergence Zone will bring the focus for additional heavier precipitation into the late afternoon and evening hours. Best chances for accumulating snow will be up in the higher mountain elevations with temperatures near the surface limiting the potential for impactful accumulations outside of under heavier rates under a PSCZ if it drifts into the Cascades.
There's around a 20-30% chance of 3" at Snoqualmie Pass late Monday through early Tuesday morning, but amounts most likely remain around an inch at most. Chances are similar for Stevens Pass.

Temperatures will remain quite cool with afternoon highs only topping out in the lower to mid 50s through the interior lowlands, which is around ten degrees below seasonal normals. Some lingering showers into Tuesday, but these will become increasingly confined to the mountains as the upper trough slides east and the orographic flow becomes increasingly necessary to maintain activity.

The shift in the pattern begins to become more pronounced Wednesday with ensemble guidance remaining in strong agreement that an upper ridge will amplify and take up residence over the western U.S. Expect cloud cover to gradually decrease and temperatures to begin to warm into the lower 60s for much of the region. A more significant warm up will follow late in the week.

LONG TERM /THURSDAY THROUGH SUNDAY/
Ensemble guidance continues to depict high confidence in a much warmer pattern across the Pacific Northwest late in the week as an upper level ridge builds over the region. Still some variations evident in the clusters of ensemble members with respect to where the ridge axis sets up and just how strong it is, but confidence is high in seeing temperatures climb to at least 10 to 15 degrees above normal by the late stages of the week for much of the lowlands.
Current forecast from the NBM suggest a run into the lower to mid 80s for the warmest spots Saturday with Friday and Sunday only a few degrees cooler for most. While the precise temperature forecast will fluctuate a bit in the coming days, it's worth noting that this will be a significant warm up and coupled with the calendar turning to May, many folks may be out around area water. Keep in mind that local waters are still quite cool and be sure to adhere to safety practices if you're out in or around the water later this week. Cullen

AVIATION
Cool upper level trough moving inland this morning and remaining over Western Washington into Tuesday morning.
Southwesterly flow aloft becoming northwesterly this afternoon. At the surface, front along the coast moving through the interior this morning. Increasing onshore flow behind the front later this morning through this afternoon. Convergence zone developing north of KPAE this morning slowly moving south reaching KSEA 06z-09z tonight.

Ceilings mostly MVFR early this morning with isolated IFR ceilings along the coast and over the Kitsap peninsula. Ceilings improving to VFR most locations outside of the convergence zone later this morning into this afternoon. Low end MVFR ceilings with the convergence zone through tonight. Air mass destabilizing behind the front with MVFR ceilings also possible with isolated thunderstorms late morning through early evening.

KSEA...MVFR ceilings improving to VFR later this morning. Ceilings lowering back down to MVFR 03z-09z with convergence zone in the vicinity. Chance of thunderstorm 19z-06z less than 15 percent so will leave out of TAF. Southwest wind 8 to 12 knots with gusts to 20 knots though 21z. Winds becoming variable 4 to 8 knots around 06z with convergence zone. Felton

MARINE
Surface high pressure building back over the area today behind a cold frontal passage. High pressure with the ridge remaining in place into Thursday. A thermally induced surface trough will build northward along the coast later Thursday into Friday.

Small craft advisories remain up for the Puget Sound and Hood Canal as well as for the Central and Eastern Strait of Juan de Fuca today. Small craft advisory winds will continue in the Central and Eastern Strait tonight with small craft winds in Admiralty Inlet as well.

Small craft advisory winds likely for the entire Strait of Juan de Fuca and Admiralty Inlet late afternoon and evening hours Tuesday and Wednesday.

Seas building tonight peaking out near 10 feet Tuesday and Tuesday night before subsiding Wednesday. Felton

HYDROLOGY
No river flooding expected in the next 7 days.

CLIMATE
Seattle high of 51 degrees Sunday was the third coldest May 5th on record in 80 years at Seattle-Tacoma airport. 51 degrees is the normal high for Seattle from February 18th to the 25th. The record low maximum for Seattle today is 48 degrees set in 1962. The forecast high of 54 degrees is the normal high for Seattle from March 11th through the 17th. Felton

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

Small Craft Advisory until 5 AM PDT Tuesday for East Entrance U.S. Waters Strait Of Juan De Fuca.

Small Craft Advisory from 6 PM this evening to 6 AM PDT Tuesday for Admiralty Inlet.

Small Craft Advisory until 6 PM PDT this evening for Puget Sound and Hood Canal.

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Henderson Inlet
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Mon -- 04:23 AM PDT     14.74 feet High Tide
Mon -- 04:56 AM PDT     Moonrise
Mon -- 05:46 AM PDT     Sunrise
Mon -- 11:25 AM PDT     -0.57 feet Low Tide
Mon -- 05:55 PM PDT     13.20 feet High Tide
Mon -- 07:10 PM PDT     Moonset
Mon -- 08:29 PM PDT     Sunset
Mon -- 11:28 PM PDT     4.87 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Henderson Inlet, Washington, Tide feet

Dana Passage
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Mon -- 01:24 AM PDT     1.67 knots Max Flood
Mon -- 04:27 AM PDT     -0.00 knots Slack
Mon -- 04:56 AM PDT     Moonrise
Mon -- 05:46 AM PDT     Sunrise
Mon -- 07:49 AM PDT     -3.19 knots Max Ebb
Mon -- 11:36 AM PDT     0.00 knots Slack
Mon -- 02:09 PM PDT     2.19 knots Max Flood
Mon -- 05:47 PM PDT     -0.00 knots Slack
Mon -- 07:10 PM PDT     Moonset
Mon -- 08:30 PM PDT     Sunset
Mon -- 08:39 PM PDT     -2.32 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION

Dana Passage, Washington Current, knots

Full Color Weather Map

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