Sunday, August20, 2017 L-36.com


Marine Weather and Tides
Packwood, WA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
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.

Sunrise 6:06AMSunset 8:03PM Sunday August 20, 2017 8:27 AM PDT (15:27 UTC) Moonrise 3:51AMMoonset 6:37PM Illumination 3% Phase: Waning Crescent; Moon at 28 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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PZZ135 Puget Sound And Hood Canal- 249 Am Pdt Sun Aug 20 2017
Today..N wind to 10 kt. Wind waves 1 ft or less.
Tonight..NE wind to 10 kt. Wind waves 1 ft or less.
Mon..N wind to 10 kt. Wind waves 1 ft or less.
Mon night..N wind to 10 kt. Wind waves 1 ft or less.
Tue..Light wind becoming nw to 10 kt in the afternoon. Wind waves 1 ft or less.
Tue night..N wind to 10 kt in the evening becoming light. Wind waves 1 ft or less.
Wed..Light wind becoming N to 10 kt. Wind waves less than 1 ft becoming 1 ft or less.
Thu..SE wind to 10 kt becoming nw. Wind waves 1 ft or less.
PZZ100 249 Am Pdt Sun Aug 20 2017
Synopsis for the northern and central washington coastal and inland waters..A typical august pattern will prevail through the middle of next week. Expect onshore flow of varying strength to persist due to high pres offshore and lower pres east of the cascades. A weak system will approach the coastal waters on Wednesday and move inland Thursday.

7 Day Forecast for Marine Location Near Packwood, WA
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location: 46.39, -121.57     debug


Area Discussion for - Portland, OR
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Fxus66 kpqr 201030
afdpqr
area forecast discussion
national weather service portland or
318 am pdt Sun aug 20 2017

Synopsis Onshore flow will produce varying degrees of morning
clouds, afternoon sunshine and inland temperatures in the 70s and
80s for much of the next week with Monday and Tuesday likely being
the warmest. A weak storm system could bring a few light showers
late Wednesday and Thursday before temperatures warm back to
above average levels next weekend.

Short term Today through Wednesday... Fog product early this
morning reveals very little cloud cover across the area. High clouds
streaming southeastward out of canada should spread across the area
today, but these should dissipate this evening and overnight as an
upper level ridge rolls over the pacific northwest.

A weak shortwave trough sliding southeastward across the rockies this
afternoon and evening will maintain onshore pressure gradients
across the CWA despite the upper level ridge impinging on the
region. With marine clouds currently congealing offshore, there
should be more marine clouds Monday morning when compared to this
morning, particularly along the north oregon coast and lower reaches
of the columbia river valley... Perhaps making it to the eastern pdx
metro for a couple hours between 7-10am.

Some models suggest marine clouds will push onto the central
oregon coast late Sunday night and Monday morning, but with winds
turning slightly offshore, particularly around 925mb, suspect there
should be at least some clear patches along the central oregon coast
Monday morning. All in all, Monday should be a good day to view the
eclipse across most of the CWA with with inland temperatures
climbing well into the 80s. Some model guidance even suggests low
90s in the willamette valley, but given the decrease in solar
insolation Monday morning due to the eclipse, held temperatures on
the cool side of MOS guidance for Monday.

It should be noted that winds turn weakly easterly around 850mb
towards midday Monday, which may allow some smoke from the wildfires
in lane and linn counties to drift over portions of the central and
southern willamette valley Monday afternoon and evening.

Expect Tuesday to be a near repeat of Monday except the winds aloft
turn a little more westerly, which will limit any smoke issues to
those in the immediate vicinity of the current wildfires. Some
modest instability over south central oregon could clip far eastern
lane county late Tuesday afternoon or evening and again on
Wednesday, but suspect thunderstorms will most likely remain east of
the cascades. The next storm system is on track to bring a dying
front, increased cloudiness, cooler temperatures and possibly some
light showers to the region late Wednesday. Neuman

Long term Wednesday night through Sunday... Models are in good
agreement a shortwave trough will slide eastward across british
columbia and washington Wednesday night and Thursday. This should
bring cooler temperatures, increased cloud cover and a chance of
light rain, particularly along the coast and across the cascade
foothills, but even portions of the willamette valley could see some
light rain. Shortwave ridging should then build over the pacific
northwest and bring a return to more sunshine and above average
temperatures towards next weekend. Neuman

Aviation Starting to think there will not be any stratus along
the coast this morning given the current satellite trends. With
good radiational cooling, some fog development is possible in a
few of the coastal valleys. This fog will stay confined to areas
sheltered by the wind. Therefore, do not expect any fog
developments at kast or konp. Inland, dry conditions should
supersede any fog low stratus development.

Kpdx and approaches...VFR conditions through the period. Do not
expect any stratus to develop in the area of the terminal this
morning. Bentley

Marine A persistent weather pattern will result in little
change in the marine weather the next several days. High pressure
holds over the NE pacific while a thermal trough is along the
south oregon coast. This supports north winds across the south
washington and north oregon waters. The thermal trough
strengthens each afternoon such that the north winds will
increase and become gusty each afternoon. The winds south of
cascade head will have frequent gusts to around 25 kt which
supports the current small craft advisory for winds.

The seas will be locally generated from these winds and generally
remain 4 to 6 ft with periods at 9 to 10 seconds. The seas will
be choppier in the southern waters for the afternoons with
dominant periods possibly around 8 seconds. Bentley

Pqr watches warnings advisories
Or... None.

Wa... None.

Pz... Small craft advisory for winds until 11 pm pdt Monday for
coastal waters from cascade head or to florence or out 60
nm.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TCNW1 - 9446484 - Tacoma, WA 75 mi39 min 58°F 55°F1021.9 hPa
TCMW1 - 9446482 - Tacoma Met, WA 76 mi39 min WNW 5.1 G 6
LOPW1 - 9440422 - Longview, WA 76 mi39 min 71°F1021.4 hPa

Wind History for Longview, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure

Wind History from CZK (wind in knots)
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Last 24hr24------------------------SW12
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SW6W6----SW65SW5
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1 day ago53------------------------322SW632SE2E21S2
2 days ago----------------------------1214334434

Tide / Current Tables for Kalama, Washington - IGNORE HEIGHTS
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Kalama
Click for MapNote: The Columbia River is subject to annual freshets. Short range predictions are available at local river forecast centers. The data for stations above Harrington Point apply only during low river stages. There is a tidal influence along most of the

Sun -- 03:10 AM PDT     8.84 feet High Tide
Sun -- 04:57 AM PDT     Moonrise
Sun -- 06:17 AM PDT     Sunrise
Sun -- 12:14 PM PDT     -1.38 feet Low Tide
Sun -- 04:30 PM PDT     7.54 feet High Tide
Sun -- 07:41 PM PDT     Moonset
Sun -- 08:10 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.54.87.48.88.67.86.54.93.21.60.2-0.9-1.4-0.71.957.27.56.964.93.72.71.9

Tide / Current Tables for Saint Helens, Columbia River, Oregon
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Saint Helens
Click for Map
Sun -- 03:34 AM PDT     3.02 feet High Tide
Sun -- 04:57 AM PDT     Moonrise
Sun -- 06:17 AM PDT     Sunrise
Sun -- 12:03 PM PDT     -0.74 feet Low Tide
Sun -- 04:47 PM PDT     2.10 feet High Tide
Sun -- 07:41 PM PDT     Moonset
Sun -- 08:10 PM PDT     Sunset
Sun -- 11:34 PM PDT     0.11 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.61.42.42.932.62.21.81.40.90.3-0.4-0.7-0.40.41.322.11.91.61.20.80.40.2

Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of PacificNorthwest    EDIT
Geos

Wind Forecast for Portland, OR (11,2,3,4)
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Ground Weather Radar Station Portland, OR
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weather_mapweather_map weather_map

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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.