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Marine Weather and Tides Shelton, WA Version 3.4

NOTICE 12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed. 10/9/2019 Updated the Marine Zones. 9/4/2019 Fixed the weather maps due to NOAA moving them. 7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

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Sunrise 5:19AM

Sunset 9:11PM

Thursday July 2, 2020 2:22 PM PDT (21:22 UTC)

Moonrise 5:59PM

Moonset 2:15AM

Illumination 92%

NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.

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7 Day Forecast for Marine Location Near Shelton, WA

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Area Discussion for - Seattle, WA

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FXUS66 KSEW 021600 CCA AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 900 AM PDT Thu Jul 2 2020

UPDATE. The next in a series of upper trough drops southward over Vancouver Island today ensuring that the weather remains rather unsettled. Onshore flow will relax somewhat later today, but not enough to provide much appreciable clearing for most of the lowlands. Higher heights arrive for the holiday weekend, but weak upper troughing and persistent onshore flow will likely limit warming and, at a minimum, keep a pattern of morning clouds and afternoon sun going for the region. No forecast updates planned this morning. 27

SYNOPSIS. Showers and abundant clouds will continue today. Drier and warmer weather expected for later Friday into the weekend before additional systems bring a chance for showers and cooler weather next week.

SHORT TERM /TODAY THROUGH SATURDAY/. Area will be sandwiched today between departing upper level low to the east and our next upper level low currently off the northern tip of Vancouver Island. As a result, onshore flow will weaken just a bit today with showers gradually becoming confined to the Olympic Peninsula and northern interior by the afternoon. Cloud cover will continue though. Temperatures will be similar to Wednesday, perhaps a degree or two warmer especially across southwest interior.

Aforementioned low will then drop SE toward the area and then into southern BC Friday. This should bring another shot at showers to the area, but with weaker forcing, expect coverage to be more limited to areas north of Seattle. Further to the south, drying trend will begin with the chance for a few peeks of sunshine by late afternoon or evening.

Deterministic and ensemble solutions in good agreement for the weekend pattern in wake of Friday's low. Longwave troughing will shift off to the east on Saturday with flow becoming more zonal. This should lead to dry weather across the area for the holiday and at least partial sunshine by the afternoon. Still some spread across ensemble guidance with regards to afternoon highs so have continued to utilize the NBM which seems to be a good middle ground. Several degrees of warming expected with July 4th afternoon highs topping out in the 70s across the interior lowlands.

CEO

LONG TERM /SUNDAY THROUGH WEDNESDAY/. Zonal flow continues into Sunday with another dry day on tap. Models have slowed the arrival of the next trough so have dried out previous forecast to better align with guidance trends. Sunday temperatures will be similar to Saturday, near or slightly above seasonal normals. Next upper level low and associated trough approach the area sometime Monday into Tuesday. Still some differences in track of this system among model guidance, but overall looks like minimal chances for showers along with cooler temperatures into mid-week.

CEO

AVIATION. Breezy southerly to southwesterly winds of around 10 kts with periodic gusts to 20 kts continue at most TAF sites this morning under low end VFR/high end MVFR conditions. The two exceptions are at KHQM and KPAE where CIGs are low end MVFR at this hour with mist being reported at the site. Expect periods of BR or -DZ to continue at both sites through the remainder of the morning before gradually tapering off this afternoon. The next weather system will be approaching the region by the end of the period, with increasing showers and lowering CIGs likely after 12Z Friday.

KSEA . Breezy south to southwesterly winds will continue at the terminal into this afternoon, with speeds between 10 and 15 kts and occasional higher gusts of 20 to 25 kts. CIGs have improved that the terminal, with high end MVFR to low end VFR conditions currently being observed with CIGs fluctuating between 3000 and 3500 ft. Expect CIGs to gradually lift through the afternoon, with winds decreasing to around 10 knots later this afternoon. The next weather system will approach Western Washington Friday morning, with reductions in CIGs and vsbys associated with shower activity possible by the end of or just beyond the end of the current TAF period.

Pullin

MARINE. Breezy conditions continue across Puget Sound and the central and eastern Strait of Juan de Fuca this morning as gradients continue to gradually relax across the area as a surface trough of low pressure moves inland away from Western Washington. As a result, the small craft advisories have been allowed to expire as winds no longer reach hazardous levels across these areas.

Onshore flow will remain in place through the weekend as a low pressure system approaches the outer coast by Friday. Westerly pushes down the Strait of Juan de Fuca will occur nightly and will likely yield additional marine headlines by the weekend.

Seas 8 to 10 feet offshore will gradually subside to 5 to 7 feet by late tonight. A west-northwesterly swell will persist the next few days, before a longer period southwesterly swell arrives in the region late in the weekend.

JP/SB

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

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



www.weather.gov/seattle

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Weather Reporting Stations

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Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
46121	19 mi	37 min	Calm	60°F			1016.8 hPa	52°F
TCMW1 - 9446482 - Tacoma Met, WA	35 mi	65 min	SW 8 G 14
TCNW1 - 9446484 - Tacoma, WA	36 mi	53 min		63°F	54°F		1017.4 hPa
WPOW1 - West Point, WA	47 mi	83 min	S 16 G 17	56°F			1016.4 hPa (+0.9)	54°F

Wind History for Tacoma MET, WA

(wind in knots)    EDIT      (on/off)   Help

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SW11 G16

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Airport Reports

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Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Shelton, Shelton Sanderson Field, WA	4 mi	30 min	WSW 10	10.00 mi	Overcast	63°F	50°F	63%	1016 hPa
Olympia, Olympia Airport, WA	18 mi	29 min	SSW 7	10.00 mi	Overcast	60°F	53°F	78%	1017.1 hPa

Link to 5 minute data for KSHN

Wind History from SHN (wind in knots)

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W15 G24

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SW20 G25

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W16 G26

W13 G23

SW20 G25

SW14 G25

W19 G25

W22 G29

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Tide / Current Tables for Shelton, Washington

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Tide / Current Tables for Hammersley Inlet, W of Skookum Pt, Washington Current

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Weather Map

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GEOS Local Image of PacificNorthwest    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East

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Wind Forecast for Seattle, WA (17,4,5,8)

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Ground Weather Radar Station Seattle/Tacoma, WA

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