Wednesday, March3, 2021
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Marine Weather and Tides
Montesano, WA

Version 3.4
NOTICE
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:48AMSunset 6:05PM Wednesday March 3, 2021 3:52 PM PST (23:52 UTC) Moonrise 11:55PMMoonset 9:13AM Illumination 73% Phase: Waning Gibbous; Moon at 20 days in cycle
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.
Marine Forecasts
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PZZ110 Grays Harbor Bar- 348 Pm Pst Wed Mar 3 2021
.small craft advisory in effect from late tonight through Saturday afternoon... Combined seas 8 to 9 ft, rising to 10 feet late tonight. Bar conditions moderate becoming rough late tonight. Maximum ebb currents will occur around 730 pm today and 800 am Thursday. The morning ebb will be strong.
PZZ100


7 Day Forecast for Marine Location Near Montesano, WA
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location: 46.97, -123.6     debug


Area Discussion for - Seattle, WA
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FXUS66 KSEW 032335 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 335 PM PST Wed Mar 3 2021

SYNOPSIS. Dry and warmer conditions will persist today and much of Thursday. A pattern change to more wet and unsettled weather will occur Thursday and persist through early next as general troughing sets up across the Pacific Northwest.

SHORT TERM /TONIGHT THROUGH SATURDAY/. Satellite imagery showing a generally sunny afternoon across much of Western Washington today, with latest observations indicating temperatures in the low to mid 50s across the region. High clouds continue to move across the far northwestern tip of the Olympic Peninsula this afternoon, in association with a warm front barely brushing the area and a low pressure system remaining just to the northwest of Haida Gwaii. Radar does shows some light echoes further offshore over the northern coastal waters, so have kept a mention of POPs for the area.

A transition back to wet and unsettled weather is on tap for Thursday, though much of the interior will remain dry through much of the day. Afternoon highs could climb into the upper 50s to low 60s- have trended with highs in the upper 50s for now, as high clouds moving inland ahead of the next system could act to mitigate temperatures a bit.

An upper level low will then deepen across the northeastern Pacific, tap into a large fetch of Pacific moisture, and gradually make its way inland late Thursday and into Friday. Overall, expect rain associated with a cold front to start to make its way inland along the coast by Thursday afternoon and slowly progress inland late Thursday. The bulk of the precipitation is expected to occur near the coast and along the Olympics, with the latest forecast calling for 1-2 inches of rain for areas along the Pacific, half an inch for areas across the Southwest Interior, and anywhere from a tenth of an inch to half an inch expected for the lowlands east of the Sound.

With snow levels increasing to 3500-4500 feet and increasing southwesterly flow aloft, expect the Olympics to receive a good dose of snow for elevations 3000 feet and above. Highest snowfall rates look to be late Thursday into early Friday, where accumulations of around 8-10 inches will be possible during the time frame. As such, have issued a winter weather advisory for the Olympics through Friday morning.

Given snow levels in the 3500-4500 ft range, expect the overall potential for river flooding across the area to remain low. The exception will be the flood-prone Skokomish, which is forecast to rise just above minor flood stage on Friday. For more details regarding river flooding, see the hydro section below.

Precipitation will continue through Friday as the upper level low offshore ejects a shortwave across the region. Overall, expect precipitation to become more showery in the wake of the frontal passage. With cold 500mb temperatures near -30C and an unstable post frontal environment, could see a few thunderstorms develop along the coast late Friday morning through Friday afternoon. Showers will continue into Saturday, before a brief break in precipitation occurs under shortwave upper level ridging Saturday night.

LONG TERM /SUNDAY THROUGH WEDNESDAY/. Ensembles indicate overall troughing remaining the dominant influence across the Pacific Northwest late this weekend and into early next week, with the next system slated to progress through the region on Sunday. Wet and unsettled conditions look to continue through early next week, however expect overall lowland rain and mountain snow to remain rather light in comparison to more recent systems. 14

AVIATION. Southwest flow aloft and VFR conditions at all TAF sites through the period generally under SCT to FEW CIGS AOA 25K FT. A few areas of low CIGS and fog will be possible tonight, particularly at KOLM and possibly KPWT. Light and variable winds at nearly all TAF sites tonight, becoming southerly and increasing to around 10 kts by Thursday afternoon. Occasional gusts to 20 kts possible at KHQM. Increasing clouds through the day, with -RA spreading from west to east Thursday afternoon and evening.

KSEA . VFR conditions through the period. Southwesterly winds around 5 knots this afternoon becoming light and variable overnight. Winds becoming southerly and increasing to around 10 kts by Thursday afternoon. Increasing clouds during the day ahead of an approaching system. -RA will affect the terminal beyond the end of the period, with brief reductions in vsbys and CIGs possible.

Pullin

MARINE. Mostly quiet weather will give way to a period of unsettled conditions across all area waters Thursday through Saturday. Increasing winds late tonight into Thursday morning, with gales expected offshore through the evening hours with the approach of the frontal system. Elevated winds will persist across the inland waters through Saturday afternoon, with wind driven waves of 3 to 5 feet at times.

Offshore swells will increase through Friday, peaking at 17 to 20 feet offshore. Swells will decrease Saturday before another swell train arrives on Sunday. Seas will gradually decrease below 10 feet once again early next week.

Pullin

HYDROLOGY. An atmospheric river is expected to affect Western Washington Thursday night through Saturday. At this time, several limiting factors will keep the flood threat isolated to the Skokomish River basin during this timeframe. As a result a hydrologic outlook remains in effect for Mason County.

1) Snow levels will only rise to 3500 to 4500 feet across the Olympic Peninsula, limiting rainfall efficiency.

2) Event duration. The AR will remain pointed at the Olympic Peninsula for ~24-36 hours at the most. Rainfall amounts will generally range from 1 to 2 inches across most locations, with higher amounts to 3 inches in the higher elevations of the Olympics.

These factors coupled with a mostly dry week will limit the flooding potential across the region. An additional system will bring additional rainfall to Western Washington Sunday through early next week.

Butwin/Borth

SEW WATCHES/WARNINGS/ADVISORIES. WA . Winter Weather Advisory from 10 AM Thursday to 10 AM PST Friday for Olympics.

PZ . Small Craft Advisory until noon PST Thursday for Coastal Waters From Cape Flattery To James Island 10 To 60 Nm-Coastal Waters From Cape Flattery To James Island Out 10 Nm-Coastal Waters From James Island To Point Grenville 10 To 60 Nm- Coastal Waters From James Island To Point Grenville Out 10 Nm-Coastal Waters From Point Grenville To Cape Shoalwater 10 To 60 Nm-Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm.

Gale Warning from noon to 10 PM PST Thursday for Coastal Waters From Cape Flattery To James Island 10 To 60 Nm-Coastal Waters From Cape Flattery To James Island Out 10 Nm-Coastal Waters From James Island To Point Grenville 10 To 60 Nm- Coastal Waters From James Island To Point Grenville Out 10 Nm-Coastal Waters From Point Grenville To Cape Shoalwater 10 To 60 Nm-Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm.

Small Craft Advisory from 4 AM Thursday to 4 PM PST Saturday for Grays Harbor Bar.

Small Craft Advisory from 6 AM Thursday to 7 PM PST Friday for Admiralty Inlet-East Entrance U.S. Waters Strait Of Juan De Fuca-Northern Inland Waters Including The San Juan Islands.

Small Craft Advisory from 6 AM Thursday to 4 PM PST Friday for West Entrance U.S. Waters Strait Of Juan De Fuca.



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Weather Reporting Stations
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Wind History for Westport, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hoquiam, Bowerman Airport, WA20 mi60 minW 910.00 miOvercast46°F36°F68%1009.8 hPa

Link to 5 minute data for KHQM

Wind History from HQM (wind in knots)
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Last 24hrW8W7NW4NW3CalmCalmCalmCalmE4CalmE5E3E4E4E7E7E7E8E6CalmSW3W7W9W9
1 day agoW8SW5W4W7SW4S4CalmNW10CalmW5NW10NW7NW4NW4NW4CalmN5N4NW3SW8SW8SW9W9W9
2 days agoS6S5S4S4SE5SE4SE7CalmSE4E3E4E6E7E5E6E7E7E7SE5E4W6W7W8W12

Tide / Current Tables for Montesano, Chehalis River, Grays Harbor, Washington
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Montesano
Click for Map
Wed -- 05:13 AM PST     9.46 feet High Tide
Wed -- 06:49 AM PST     Sunrise
Wed -- 09:12 AM PST     Moonset
Wed -- 11:52 AM PST     0.62 feet Low Tide
Wed -- 05:48 PM PST     8.23 feet High Tide
Wed -- 06:03 PM PST     Sunset
Wed -- 11:55 PM PST     1.59 feet Low Tide
Wed -- 11:55 PM PST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.33.25.57.48.89.49.28.16.34.32.41.10.61.63.45.36.97.98.27.66.34.63.12

Tide / Current Tables for Cosmopolis, Chehalis River, Grays Harbor, Washington
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Cosmopolis
Click for Map
Wed -- 04:05 AM PST     12.35 feet High Tide
Wed -- 06:50 AM PST     Sunrise
Wed -- 09:13 AM PST     Moonset
Wed -- 10:22 AM PST     0.81 feet Low Tide
Wed -- 04:40 PM PST     10.74 feet High Tide
Wed -- 06:04 PM PST     Sunset
Wed -- 10:25 PM PST     2.08 feet Low Tide
Wed -- 11:56 PM PST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.2810.211.712.311.8107.44.72.30.91.235.47.69.410.510.79.77.65.33.42.22.3

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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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