Wednesday, March29, 2017 L-36.com


Marine Weather and Tides
Willapa, WA

Version 3.4
What's New / NOTES
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 6:55AMSunset 7:43PM Wednesday March 29, 2017 4:00 PM PDT (23:00 UTC) Moonrise 7:12AMMoonset 8:54PM Illumination 6% Phase: Waxing Crescent; Moon at 2 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- 300 Pm Pdt Wed Mar 29 2017
.small craft advisory for rough bar in effect through Thursday morning... Combined seas 10 to 12 ft. Bar conditions rough. Maximum ebb currents will occur around 630 pm today and 645 am Friday. The Friday morning ebb will be very strong.
PZZ100 300 Pm Pdt Wed Mar 29 2017
Synopsis for the northern and central washington coastal and inland waters..Strong onshore flow behind a cold front will persist into the evening. Moderate onshore flow will continue Thursday. A ridge of high pres will give lighter winds Friday. Another front will arrive Saturday.

7 Day Forecast for Marine Location Near Willapa, WA
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location: 46.68, -123.67     debug


Area Discussion for - Portland, OR
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Fxus66 kpqr 291642
afdpqr
area forecast discussion
national weather service portland or
942 am pdt Wed mar 29 2017

Synopsis A warm front is moving east across the region this
morning, with a cold front following and moving southeast through sw
washington and NW oregon later today. This will turn the rain into
showers later today, then showers will continue into Thu as an upper
level trough of low pressure moves across the pacific nw. Fri is
expected to be dry as high pres moves across the region, then
chances for rain return for the weekend as the next system moves in.

Short term This afternoon through Friday... Radar this morning
shows rain associated with a warm front moving across the area. The
front is moving a little bit faster than originally thought, with
the back edge of precip shown stretching from about troutdale south
to the linn county cascade foothills and then west to about newport.

Areas north and west of the line will generally see a break in rain
for the rest of the morning before some showers develop this
afternoon. However, after this morning outside of the cascades, it's
not looking like today will be much of a soaker. For those keeping
track, it's becoming less likely that pdx will break its march
rainfall record.

The parent surface low off the wa coast is expected to lift NE across
vancouver island today. A cold front trailing the low will push
southeast across the forecast area today, slowing as becomes more
parallel to the upper flow late today. With
deep moisture in the air mass preceding the cold front, some
additional rain, turning showery behind the front, with low level
flow turning sharply to the northwest. The trailing upper level
trough is expected to move across Thu morning, with moisture will
generally be limited to low levels below about 10k feet. Once the
upper trough passes, shower activity is expected to become more
reliant on orographic lift and thus will tend to become more tied to
the upwind side of the mountains.

Thu night into Fri a ridge of high pres at the surface and aloft
pushes east into western oregon and washington. Subsidence will
stabilize the atmosphere bringing an end to the showers. Low level
will be slow to dry out though as a low level offshore flow never
really gets going. Added some patchy fog to the forecast for Friday
morning, particularly away from the coast where there may be some
offshore drift that prevents it. Bowen

Long term Friday night through Tuesday... No changes. Previous
discussion follows. Model agreement is better through sat,
with a more progressive pattern over the region. Models continue to
show ridging east of the region on Saturday. Still looks dry and mild
on Saturday, with just increasing mid and high clouds. Now, while
there are still differences in the models, will have to keep some
minor threat of showers in forecast for Sat night into early next
week.

Aviation Conditions are bouncing betweenVFR and MVFR at most
taf sites and will continue for most of the day today. Heaviest
ran has now shifted south of salem, but areas along the coast are
experiencing heavy drizzle which is reducing visibilities at or
below 2sm.

Pdx and approaches... Mix of MVFR andVFR conditions through the
remainder of the day. Heaviest rain has now shifted south of the
region which should limit any visibility restriction. Only
exception will be if lower visibilities from drizzle at the coast
makes it into the valley. This is a low probability and the most
likely scenario is p6sm visibilities and MVFR orVFR ceilings.

/bentley

Marine A surface low pres is currently centered around
47n/129w. This low will move NE and onshore on vancouver island
later this morning. Southerly winds associated with this low have
picked up overnight, and we are now seeing borderline gale force
winds at buoy 46050. Expect winds generally 25 to 30 kt with
gusts to 35 kt through mid-morning. There may be a few gusts to
40 kt south of cascade head and within 20 nm of shore as some
coastal jet enhancement may occur. Winds will become w-nw and
slacken later this morning and especially this afternoon as the
cold front moves onshore.

Higher pres will become established over the NE pac later tonight
and thu, and will remain through fri. There may be some
borderline small craft advisory NW winds over the northern
waters later tonight into Thu morning. But otherwise, expect
fairly benign conditions during this time. A weak front will move
through the waters sat, which will briefly turn the winds
southerly and may bring some gusts of 20 to 25 kt. Northerly
winds return Sun and Mon and may be gusty at times.

Seas will remain in the 12 to 14 ft range through tonight. Long
period westerly swell will combine with a significant southerly
wind wave component to produce chaotic seas. The seas will
subside tonight and thu, dropping below 10 ft by around midnight.

Seas then remain below 10 ft through the next several days. Pyle

Pqr watches/warnings/advisories
Or... None.

Wa... None.

Pz... Gale warning until 11 am pdt this morning for coastal waters
from CAPE shoalwater wa to florence or out 60 nm.

Small craft advisory for rough columbia river bar until 11 pm
pdt this evening.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TOKW1 - 9440910 - Toke Point, WA 16 mi60 min W 12 G 16 50°F 49°F1014.9 hPa (+2.1)
WPTW1 - 9441102 - Westport, WA 28 mi84 min W 13 G 15 48°F 49°F1014.1 hPa
ASTO3 - 9439040 - Astoria, OR 33 mi60 min WSW 11 G 15 49°F 47°F1015.7 hPa (+1.7)
46211 - Grays Harbor, WA (036) 33 mi38 min 51°F10 ft
46243 - Clatsop Spit, OR - 162 40 mi30 min 51°F10 ft

Wind History for Toke Point, WA
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G19
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G18

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hoquiam, Bowerman Airport, WA26 mi67 minWSW 15 G 207.00 miOvercast50°F46°F89%1014.2 hPa

Wind History from HQM (wind in knots)
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Last 24hrS19
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E11E11NE11NE10E12E9SE14
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1 day agoSW15S13SW13SW13S10S9S5S10S11SE14S10S13S14S14S13S13S17
G22
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2 days agoNE8E6W10SW8S8S5SE6S15S5SE8SE9S7SE6SE11SE9S7SE6S8S10SW13SW17SW17
G22
SW15SW16

Tide / Current Tables for Willapa City, Willapa River, Washington
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Willapa City
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Wed -- 03:42 AM PDT     11.26 feet High Tide
Wed -- 06:59 AM PDT     Sunrise
Wed -- 08:11 AM PDT     Moonrise
Wed -- 09:26 AM PDT     -0.44 feet Low Tide
Wed -- 04:10 PM PDT     10.76 feet High Tide
Wed -- 07:40 PM PDT     Sunset
Wed -- 09:37 PM PDT     0.58 feet Low Tide
Wed -- 09:53 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.98.19.91111.2107.54.51.7-0.2-0.11.64.16.58.510.110.710.28.35.6310.72.1

Tide / Current Tables for South Bend, Willapa River, Willapa Bay, Washington
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South Bend
Click for Map
Wed -- 02:49 AM PDT     10.91 feet High Tide
Wed -- 06:59 AM PDT     Sunrise
Wed -- 08:12 AM PDT     Moonrise
Wed -- 09:06 AM PDT     -0.83 feet Low Tide
Wed -- 03:20 PM PDT     10.38 feet High Tide
Wed -- 07:40 PM PDT     Sunset
Wed -- 09:21 PM PDT     0.30 feet Low Tide
Wed -- 09:53 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
6.8910.510.9107.95.22.50.3-0.8-02.257.49.310.310.18.66.33.91.70.40.72.7

Weather Map and Satellite Images
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Weather Map
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IR Satellite Image from GEOS
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GOES Local Image of PacificNorthwest    EDIT
Geos

Wind Forecast for Portland, OR (19,4,5,8)
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Ground Weather Radar Station Portland, OR
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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.