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Marine Weather and Tides Grayland, 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 5:59AM

Sunset 8:43PM

Wednesday August 5, 2020 6:31 AM PDT (13:31 UTC)

Moonrise 9:12PM

Moonset 6:58AM

Illumination 98%

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 Grayland, WA

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Area Discussion for - Portland, OR

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FXUS66 KPQR 051010 AFDPQR

Area Forecast Discussion National Weather Service Portland OR 231 AM PDT Wed Aug 5 2020

SYNOPSIS. Expect a mixture of morning clouds and afternoon sunshine with temperatures near average for much of the next week. The main exception to this will be Wednesday night into Thursday when cooler temperatures and light rain should spread northwest to southeast across the area.

SHORT TERM. Today through Friday . Water vapor satellite imagery early this morning reveals a shortwave trough over the northeast Pacific dropping southeastward towards the Pacific Northwest. Shortwave ridging is shifting eastward into the Rocky Mountain states, but lingering 850mb temperatures of 14-16C should still allow temperatures to climb into the 80s in the Willamette Valley and Columbia River Gorge this afternoon. Onshore pressure gradients will increase rather dramatically this afternoon and support particularly gusty winds (at least relative to normal) through the typical Coast Range gaps and Columbia River Gorge this evening.

Models and their ensembles are in good agreement the aforementioned shortwave trough will swing eastward across Washington and far northern Oregon late tonight into Thursday morning. This should result in a weakening front sliding southeastward across the area and result in a period of light rain spreading across the region. Best rain chances and highest QPF will be in the Willapa Hills/N OR Coast Range, where some locations should pick up a 0.25-0.50". Coastal locations should generally receive 0.10-0.25" of rain from this system, while most of the Willamette Valley will likely struggle to achieve a tenth of an inch. With that said, the latest GEFS and EPS data suggests a tenth of an inch may not be quite as hard to achieve as earlier model guidance suggested, particularly for Portland and points northward. As daytime heating turns over the lower atmosphere behind the main band of rain, some low level instability will likely generate a few additional showers that will linger across the interior lowlands and points eastward into Thursday evening. Given the much cooler temperatures aloft and increased cloud cover, high temperatures should end up 5-10F below average on Thursday.

Low level onshore flow under weak upper level troughing will persist into Friday. Nonetheless, temperatures aloft should warm sufficiently enough to support high temperatures just a couple degrees below average on Friday. /Neuman

LONG TERM. Saturday through Tuesday . Models and their ensembles suggest varying degrees of onshore flow will persist over the weekend and into early next week. There are still variations as to how much influence a low amplitude shortwave ridge or a shortwave trough will have on the region early next week. As a result, opted for a middle of the road scenario, which generally keeps temperatures within 5F of average throughout the extended forecast. With that said, there is definitely some potential for the forecast to trend warmer or cooler by quite a bit if some of the more extreme scenarios pan out. /Neuman

AVIATION. Marine stratus generally continues along the coast and in the coastal valleys early this morning resulting in a mix of conditions from low MVFR to LIFR. Expect stratus to expand up the lower Columbia to about KSPB, with some stratus also forming along the Cascade foothills around sunrise. Low MVFR or IFR cigs should make it into the south Willamette Valley by 12Z resulting in a few hours of reduced flight conditions for KEUG. Otherwise, most interior TAF sites will remain VFR with mostly clear skies and diurnal winds. Expect inland stratus to clear by 18Z. Coastal area will take a few hours longer to clear, but KONP may only see little improvements this afternoon. A deeper marine layer should result in higher cigs this evening as a weak front approaches the coast.

KPDX and APPROACHES . Aside from a few hours of MVFR stratus in the vicinity between 12-18Z expect conditions to remain mainly VFR with mostly clear skies and diurnal winds increasing during the afternoon/evening hours.

MARINE. Surface high pressure over the waters will weaken later today as the next frontal system approaches the region. The front will move across the waters tonight into Thursday resulting in a brief period of southwesterly winds. Another frontal system looks to brush by the northern waters on Friday. Summertime northerlies then return late Friday and continue through the weekend and into early next week for a higher likelihood of advisory winds.

Seas look to remain in the 3-5 ft range Thursday. Slightly higher wave heights move into the waters late Thursday behind the front, but remain below 10 ft. Seas of 6-9 ft occur late in the weekend, primarily due to building fresh northwest swell.

PQR WATCHES/WARNINGS/ADVISORIES. OR . None. WA . None. PZ . None.



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Weather Reporting Stations

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Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
WPTW1 - 9441102 - Westport, WA	4 mi	56 min	NW 8 G 9.9	56°F	57°F		1015.8 hPa
46211 - Grays Harbor, WA (036)	9 mi	36 min			56°F	3 ft
TOKW1 - 9440910 - Toke Point, WA	12 mi	44 min	NNW 5.1 G 8	58°F	62°F		1016.1 hPa
46099	28 mi	102 min	NNW 7.8	58°F	56°F		1015.4 hPa
46243 - Clatsop Spit, OR - 162	45 mi	36 min			58°F	3 ft
46100	48 mi	102 min	NNW 9.7	35°F	63°F		1015.6 hPa
ASTO3 - 9439040 - Astoria, OR	48 mi	44 min	SSE 1.9 G 4.1	58°F	69°F		1015.9 hPa
46041 - CAPE ELIZABETH- 45NM Northwest of Aberdeen, WA	49 mi	22 min	NNW 9.7 G 12	59°F	60°F		1015.7 hPa	56°F

Wind History for Westport, WA

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Airport Reports

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Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Hoquiam, Bowerman Airport, WA	10 mi	39 min	W 5	10.00 mi	A Few Clouds	55°F	53°F	93%	1016.1 hPa

Link to 5 minute data for KHQM

Wind History from HQM (wind in knots)

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Tide / Current Tables for Bay City, Tillamook Bay, Oregon

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Tide / Current Tables for Grays Harbor Entrance, 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 Portland, OR (9,2,3,4)

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Ground Weather Radar Station Portland, OR

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