Monday, July26, 2021
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Marine Weather and Tides
Westport, WA

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
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 5:46AMSunset 8:57PM Monday July 26, 2021 5:03 PM PDT (00:03 UTC) Moonrise 9:55PMMoonset 7:39AM Illumination 93% Phase: Waning Gibbous; Moon at 17 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- 307 pm pdt Mon jul 26 2021 combined seas 2 to 4 ft. Bar conditions light. Maximum ebb currents will occur around 730 pm this evening and 730 am Tuesday. The morning ebb will be strong.
PZZ100 307 Pm Pdt Mon Jul 26 2021
Synopsis for the northern and central washington coastal and inland waters..High pressure offshore with thermal low pressure east of the cascades will result in onshore flow for much of the upcoming week. Westerly pushes down the strait of juan de fuca each afternoon and evening may result in small craft advisory level winds each day this week.


7 Day Forecast for Marine Location Near Westport, WA
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location: 46.91, -124.11     debug


Area Discussion for - Seattle, WA
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FXUS66 KSEW 262258 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 358 PM PDT Mon Jul 26 2021

SYNOPSIS. Upper level ridging and low level onshore flow will result in a typical dry pattern with varying degrees of morning low clouds with afternoon clearing and sunshine. The upper level ridge will begin to retrograde to the west midweek - allowing upper level heights to build over the Pacific Northwest resulting in a warming trend Thursday into the weekend.

SHORT TERM /TONIGHT THROUGH THURSDAY/. Southwesterly flow aloft along the leading edge of the persistent Western US upper level ridge and low level onshore flow will drive a typical pattern of varying degrees of marine stratus and sunny afternoons through at least midweek. Stratus coverage tonight looks similar to last night - reaching again into at least the northern and southern portions of Puget Sound. Morning clouds will lift and clear quickly Tuesday, leaving sunny skies and slightly warmer than normal temperatures. One wrinkle may be high clouds expected to brush the area, which may help keep temps down a bit over Monday - even so they will still run a degree or two above normal.

The upper level ridge will begin to retrograde to the west on Wednesday allowing temperatures to warm a few degrees as the upper level heights build back over the Pacific Northwest. This may also help limit the intrusion of stratus somewhat over the interior, possibly further boosting temperatures. High temperatures will rise into the mid to upper 80s over the interior from Puget Sound southward, especially away from the water. One other consideration to watch as the ridge builds back to the west will be increasing potential for the advection of elevated smoke/haze into the region from fires to the south as the flow aloft becomes more southerly. If this occurs it looks most likely later in the week and would be manifested by elevated layers of smoke from fires in California.

LONG TERM /FRIDAY THROUGH MONDAY/. The upper level ridge continues to be the controlling feature through the weekend. Ensemble guidance continues to highlight a consistent westward shift of the ridge axis, with some variability in terms of the amplitude through Saturday. Expect warm temperatures to continue to trend warmer Friday and Saturday, solidly into the mid to upper 80s across the interior with some areas south of Tacoma, and perhaps some locations along the Cascade foothills east of I-405 reaching into the lower 90s. Low temperatures will dip into the upper 50s providing some overnight relief, however some locations through the metro area eastward into the Cascades could remain in the low 60s overnight which would be less of a relief. More enhanced onshore flow, and perhaps slightly cooler temperatures will return by the start of next week with a strengthening low off the coast of B.C. by late Sunday or Monday. The warm and dry pattern looks to continue through the 7 day forecast.

AVIATION. Conditions are clear throughout Western Washington, even at the coastal terminals. With continued onshore flow, the next round of marine stratus is expected to begin affecting the area terminals around 04-06 UTC for the coastal locations. And then closer to 15 UTC for more inland terminals. With a more northerly component of the flow, we expect the marine clouds that move into the interior to be mostly broken or scattered. However, the typically cloudy locations of KPWT, KOLM and KCLM will likely see some overcast ceilings and potentially a drop in visibility. Northerly winds will become slightly more westerly during this nightly influx of marine air. Before returning to mostly northerly by mid morning on Tuesday. Winds through the rest of the day are expected to be 7-10 knots and easing to 3-5 during the overnight. With KBLI and KCLM being the exception to these speeds. Here expect winds 10-15 and easing to 5-10 knots during the overnight.

KSEA . VFR conditions will remain in place through the rest of today and likely through the night. There is a slight chance that ceilings could drop down to MVFR Tuesday morning with the incoming marine layer, but this is unlikely. Expect northerly winds of 7-10 knots to continue through the rest of today before easing and becoming more northwesterly during the overnight.

Butwin

MARINE. No big changes to the marine forecast since the last forecast cycle. Expect nightly pushes through the Strait of Juan de Fuca. Likely all resulting in at least a SCA each night. Out in the coastal waters expect combined seas to be 3-5 feet with light westerly swells.

Butwin

PREV DISCUSSION. /issued 818 AM PDT Mon Jul 26 2021/

SYNOPSIS .

SHORT TERM /TODAY THROUGH WEDNESDAY/ .

LONG TERM /THURSDAY THROUGH SUNDAY/ . From previous discussion .

AVIATION . West to southwesterly flow aloft over W WA today, becoming more southwesterly as the day progresses. Onshore flow remains at the surface. The atmosphere remains generally stable and fairly dry.

Marine stratus started to affect some of the usual cloudy spots of KOLM, KPWT and KCLM lat this morning. As of 1500 UTC these marine clouds are already showing the first signs of scattering out. A return to VFR for all inland locations is expected by early afternoon. With coastal locations such as KHQM likely taking a bit longer to scatter out. Winds generally light and variable for most TAF sites although sites such as BLI and CLM will remain W to SW 8-12 kts during the early morning hours. SEA and PAE likely to remain 5-10 kts. Remaining stations will see winds shift more N to NW with speeds 4-8 kts by this afternoon.

KSEA . VFR conditions will persist over the next 24 hours. With a slight chance of MVFR towards the end of the TAF period due to the next marine push. Winds will remain northerly and should ease to 5-8 kts by 15Z, increasing slightly to 10 kts this afternoon.

18/Butwin

MARINE . While winds have eased enough to bring an end to the Gale Warning, a SCA remains in effect through tomorrow morning as we do not anticipate any long duration calming of winds until Tuesday morning.

The weather pattern does not change much over the next few days as thermally induced low pressure inland and higher pressure in the cool air offshore remain in place. This will keep onshore flow present over the area waters with westerly pushes through the Strait each afternoon and night.

18/Butwin

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-East Entrance U.S. Waters Strait Of Juan De Fuca.



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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WPTW1 - 9441102 - Westport, WA 0 mi88 min NW 15 G 17 57°F 51°F1017.3 hPa
46211 - Grays Harbor, WA (036) 8 mi38 min 53°F3 ft
TOKW1 - 9440910 - Toke Point, WA 16 mi46 min NW 13 G 18 64°F 55°F1016.6 hPa
46041 - CAPE ELIZABETH- 45NM Northwest of Aberdeen, WA 45 mi34 min NW 9.7 G 12 58°F 56°F1017.6 hPa58°F
46100 46 mi134 min NNW 12 62°F1017.3 hPa
46243 - Clatsop Spit, OR - 162 48 mi38 min 58°F3 ft

Wind History for Westport, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hoquiam, Bowerman Airport, WA9 mi71 minW 1210.00 miFair71°F58°F63%1016.5 hPa

Link to 5 minute data for KHQM

Wind History from HQM (wind in knots)
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Last 24hrW11NW13W7NW5W3W5NW5NW6NW6CalmCalmNW4NW3W3CalmN4SW5SW8W12W12W13W12W12W13
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Tide / Current Tables for Westport, Point Chehalis, Grays Harbor, Washington
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Westport
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Mon -- 02:42 AM PDT     9.07 feet High Tide
Mon -- 05:49 AM PDT     Sunrise
Mon -- 08:39 AM PDT     Moonset
Mon -- 09:06 AM PDT     -1.80 feet Low Tide
Mon -- 04:02 PM PDT     8.12 feet High Tide
Mon -- 08:55 PM PDT     Sunset
Mon -- 09:19 PM PDT     1.49 feet Low Tide
Mon -- 10:55 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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6.47.98.898.26.44.11.6-0.7-1.8-1.20.42.34.46.37.68.17.66.34.62.81.61.83.1

Tide / Current Tables for Grays Harbor Entrance, Washington Current
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Grays Harbor Entrance
Click for Map
Mon -- 12:20 AM PDT     2.03 knots Max Flood
Mon -- 03:07 AM PDT     -0.00 knots Slack
Mon -- 05:49 AM PDT     Sunrise
Mon -- 06:47 AM PDT     -3.96 knots Max Ebb
Mon -- 08:39 AM PDT     Moonset
Mon -- 10:08 AM PDT     0.01 knots Slack
Mon -- 01:31 PM PDT     2.70 knots Max Flood
Mon -- 04:24 PM PDT     -0.01 knots Slack
Mon -- 07:24 PM PDT     -2.52 knots Max Ebb
Mon -- 08:55 PM PDT     Sunset
Mon -- 10:12 PM PDT     0.00 knots Slack
Mon -- 10:55 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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21.91.40.2-1.5-2.9-3.7-3.9-3.3-1.9-0.21.22.22.62.620.6-0.8-1.9-2.5-2.4-1.5-0.30.9

Weather Map
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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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