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Marine Weather and Tides Markham, 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 6:49AM

Sunset 7:48PM

Thursday April 2, 2020 4:41 AM PDT (11:41 UTC)

Moonrise 12:01PM

Moonset 3:11AM

Illumination 70%

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 Markham, WA

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Area Discussion for - Seattle, WA

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FXUS66 KSEW 020939 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 239 AM PDT Thu Apr 2 2020

SYNOPSIS. Lowland rain and mountain snow will continue off and on for the next several days as a series of weak systems pass through the area. Drier and warmer conditions are possible by the middle of next week.

SHORT TERM /TODAY THROUGH SATURDAY/. A weak upper level impulse will cross the area later today in northwest flow aloft. A mid level cloud deck has been filling in over Western Washington overnight ahead it. The majority of the shower activity that it will generate later this morning and into the afternoon is expected to be over the higher terrain of the Cascades and Olympics. Showers will diminish this evening, albeit briefly, before another upper trough dipping southward over the interior of British Columbia affects the region. Initially, precipitation will likely mostly confined to the North Interior and Cascades early Friday, but there may be enough low level onshore flow Friday afternoon to get a convergence zone going.

Onshore flow relaxes and the upper trough pushes eastward late Friday night for diminishing showers. As they've been previously advertising, the models slide some weak shortwave ridging across the area on Saturday ahead of another upper trough digging southward over the offshore waters. Most of Western Washington should see a generally dry on Saturday with the exception of perhaps a few showers wrapping around the trough into the Southwest Interior Saturday evening. Continuing the recent trend, temperatures through the short term forecast period are expected to remain below normal.

LONG TERM /SUNDAY THROUGH WEDNESDAY/. Following the trends that previous model runs were hinting at, the deterministic runs of both the GFS and Euro now take Saturday's offshore trough well south of the area Sunday into Monday and leave the region generally dry. Despite this, weak troughiness remains over the area and the GFS tries to get a few terrain driven showers going. For this reason, it seem wise to leave a chance or slight chance of showers in the forecast Sunday/Monday. But both operational model runs and ensemble means are pointing to some improvement by Tuesday/Wednesday as upper ridging offshore noses closer to the Pacific Northwest for possible drier conditions and temperatures a little closer to climatological norms. 27

AVIATION. Scattered to broken cloud cover resides across western Washington early this morning. With the exception of HQM, all TAF sites are VFR as of 2am. Model guidance has been suggestive of the development of an MVFR layer of clouds towards daybreak, however, given current trends, confidence is low in the overall coverage. This will be evaluated a bit more before the 12z update, along with the potential for patchy fog development around OLM and PWT. SCT-BKN VFR conditions should be the dominant cig this afternoon and evening. Scattered showers are expected again, mainly this afternoon across the entire area. Winds generally south 5-10kts thru the period, tho initially NE at BLI and overall more westerly at CLM and HQM.

KSEA . VFR cigs may give way to an MVFR stratus deck around daybreak. Conditions should improve back to VFR this afternoon. Scattered showers also expected late morning and into the evening hours. Winds S 5-10kts.

Kovacik

MARINE. A weak frontal boundary remains hung up over the area early this morning, roughly from Vancouver Island into the Eastern Strait and into the Cascades. This is allowing a Northeasterly wind to prevail across the Northern Inland Waters with onshore flow elsewhere. Overall gradients are light this morning with highest wind speeds around 10-15kts. This general trend will continue through the morning and into the afternoon hours, with no marine headlines needed. A weak westerly push is then expected down the Strait of Juan de Fuca later this afternoon and through much of the overnight hours. This is likely to be a marginal small craft wind event, with highest wind speeds around 21-22kts. These marginal winds may bleed into the adjacent Northern Inland Waters for a period of time overnight into Friday morning, so have expanded the SCA to account for this. Gradients appear to remained elevated enough for small craft advisory winds to continue across the central and eastern Strait through Friday.

An active pattern is expected to continue through the weekend with perhaps a dry period and tranquil period setting up for early next week. For now, see no notable marine hazards (wind nor seas) during this time.

Kovacik

HYDROLOGY. An unsettled pattern will continue into the weekend, but precipitation amounts are not expected to lead to flooding concerns.

SEW WATCHES/WARNINGS/ADVISORIES. WA . None. PZ . Small Craft Advisory from 5 PM this afternoon to 8 PM PDT Friday for Central U.S. Waters Strait Of Juan De Fuca-East Entrance U.S. Waters Strait Of Juan De Fuca.

Small Craft Advisory from 8 PM this evening to 8 AM PDT Friday for Northern Inland Waters Including The San Juan Islands.



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
WPTW1 - 9441102 - Westport, WA	6 mi	66 min	E 5.1 G 7	42°F	49°F		1022.1 hPa
46211 - Grays Harbor, WA (036)	13 mi	42 min			48°F	5 ft
TOKW1 - 9440910 - Toke Point, WA	13 mi	60 min	E 5.1 G 5.1	41°F	50°F		1022.4 hPa
46099	31 mi	112 min	NW 9.7	44°F	48°F		1021.3 hPa
46243 - Clatsop Spit, OR - 162	47 mi	42 min			48°F	6 ft
ASTO3 - 9439040 - Astoria, OR	49 mi	54 min	E 1 G 1.9	40°F	48°F		1022.1 hPa

Wind History for Westport, WA

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

4 AM

5 AM

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1 PM

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Last 24hr

SW11

SE9

SE10

SE9

E9

E8

E7 G11

E8

E7 G10

N5

NW11

NW15

NW15

N18

NW14 G18

NW16

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N14

N10

N6

NW15

NW13 G16

N12

NW7

1 day ago

W12 G17

NW4 G7

NE2

SE3

W10

NW23

W6 G9

SW8

W12

W16

SW11 G14

SW9 G12

W10 G14

SW4

W16

W14

W10 G13

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SW7

S3

S4

SW3 G8

E6

2 days ago

W21

W26

W16 G21

W25

SW17 G24

SW18 G23

SW16 G22

W22

SW23 G29

SW23 G28

SW17 G22

SW17 G22

SW12 G20

SW14 G17

W13 G17

W10

SW9 G12

SW10 G14

W13

SW6 G9

W5

SW8

W12 G18

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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	6 mi	49 min	Var 3	10.00 mi	Overcast	40°F	39°F	97%	1022.5 hPa

Link to 5 minute data for KHQM

Wind History from HQM (wind in knots)

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E8

E11

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E6

3

3

N9

NW5

N10

N9

NW6

NW4

NW5

Calm

Calm

Calm

NW5

N9

NE4

3

1 day ago

NE3

Calm

E4

Calm

S4

NW8

W6

NW11

W12

SW13

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W12

W6

SW16

W12

W9

W12

SW7

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SE8

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Calm

E8

2 days ago

W17

W16

W22 G29

SW14

SW26 G33

SW17

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W19 G30

W15

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SW19

SW16

SW17

SW17

SW14 G19

NW5

SW7

S11

S8

SW8

S5

NE4

NE4

E4

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Tide / Current Tables for Markham, Grays Harbor, Washington

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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 Seattle, WA (7,2,3,4)

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Ground Weather Radar Station Portland, OR

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