Monday, July22, 2019 L-36.com


Marine Weather and Tides
Packwood, WA

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6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 5:29AMSunset 8:47PM Monday July 22, 2019 4:19 PM PDT (23:19 UTC) Moonrise 10:53PMMoonset 10:15AM Illumination 67% Phase: Waning Gibbous; Moon at 21 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- 248 Pm Pdt Mon Jul 22 2019
Tonight..Variable wind 5 to 15 kt. Wind waves 2 ft or less.
Tue..N wind to 10 kt. Wind waves 1 ft or less.
Tue night..N wind 5 to 15 kt becoming S after midnight. Wind waves 2 ft or less. A chance of showers in the evening. A slight chance of showers after midnight.
Wed..S wind 5 to 15 kt easing to 10 kt in the afternoon. Wind waves 2 ft or less.
Wed night..N wind 5 to 15 kt becoming ne after midnight. Wind waves 2 ft or less.
Thu..Light wind becoming N to 10 kt in the afternoon. Wind waves 1 ft or less.
Thu night..N wind 5 to 15 kt in the evening becoming light. Wind waves 2 ft or less.
Fri..Light wind becoming N 5 to 15 kt. Wind waves 2 ft or less.
Sat..Light wind becoming N to 10 kt. Wind waves less than 1 ft becoming 1 ft or less.
PZZ100 248 Pm Pdt Mon Jul 22 2019
Synopsis for the northern and central washington coastal and inland waters..Weak high pressure is near the coast with low pressure inland. Marine air will push into western washington through this evening and a stronger marine push will develop Tuesday evening. Westerly gales are likely in the strait of juan de fuca Tuesday evening.


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 222123
afdpqr
area forecast discussion
national service portland or
221 pm pdt Mon jul 22 2019

Synopsis There is a slight chance for thunderstorms across the
cascades late this afternoon and early this evening. Expect marine
clouds to move far inland Tuesday morning as an upper trough
approaches. This trough will result in slightly cooler afternoon
temperatures Tuesday afternoon and another possibility for cascade
thunderstorms in the afternoon. High pressure builds over the pac nw,
with dry weather for Wednesday through Saturday.

Short term Tonight through Thursday... Cumulus clouds are
developing along the oregon cascades early this afternoon as an upper
level shortwave trough moves south to north just east of the
cascades. Satellite imagery has been showing a thin strip of
altocumulus castellanus (accas) moving over the cascades since early
this morning indicative of upper level instability. Water vapor shows
another shortwave trough approaching the oregon cascades. This feature
combined with terrain and thermal induced surface instability may be
enough to trigger isolated thunderstorms across the oregon cascades
late this afternoon. Southwest steering flow should keep any
thunderstorms that may form along the cascades or move them east of
the cascades.

An upper level trough over the NE pacific will approach the coast
tonight. This will support a deep marine layer overnight and any
stratus that solidifies along the coast overnight will likely move
inland Tuesday morning. Do not expect rain with this trough, but
there could be light drizzle with the marine stratus in the morning.

The stratus and drizzle should decrease in the early afternoon. The
cascades could see some showers or even thunderstorms late Tuesday
afternoon as the upper trough moves inland over the cascades.

Increasing onshore flow on Tuesday will likely keep any thunderstorms
near the cascade crest and move them quickly to the east. Tuesday
will likely be the coolest day of the week, and expect the inland
afternoon temperatures to peak just below 80 degrees north of salem,
and near 80 degrees south of salem.

Surface high pressure builds Tuesday night as a thermal trough moves
offshore of the south oregon coast. This will result in light
offshore winds for the central oregon coast and likely keep any
marine stratus offshore. However, light NW winds will continue across
the north oregon and south washington coast where marine stratus will
likely move inland up the coastal valleys early Wednesday morning.

The thermal trough moves inland in the afternoon remaining south of
lane county tightening the north-south surface pressure gradient
across the central and south willamette valley. This will result in
north winds gusting to 20-25 mph Wednesday afternoon in the central
and south willamette valley.

There will be much less (if any) marine clouds along the coast or
inhalant Wednesday night, and a sunnier start to the day on Thursday
will result in warmer afternoon temperatures (upper 80s inland,
lower-mid 70s coast). ~tj

Long term Thursday night through Sunday... Guidance continues
to keep the bulk of the energy to our north for dry weather and
seasonal temperatures. The best chance for a strong marine push and
possible rain or drizzle is across SW washington Friday morning as a
weak front brushes by to the north. Will also see periods of late
night morning stratus along the coast and portions of the interior,
generally along the lower columbia river. Otherwise, expect plenty of
sun across the region, and inland temperatures peaking in the 80s.

~tj 64

Aviation Vfr conditions continue through tonight with passing
mid and high clouds. There is a slight chance of thunderstorms in
the cascades this afternoon and evening, but don't think they
will impact any of the TAF sites. Onshore flow strengthens
tonight which should allow MVFR stratus to redevelop along the
coast after 06z, with marine stratus filtering inland overnight.

Expect widespread MVFR stratus to impact inland TAF sites by 13z
Tuesday. Lower stratus will impact inland TAF sites through mid
Tuesday, withVFR conditions expected Tuesday afternoon and
evening. The coast will be slower to clear, but suspect they
will see a couple of hours ofVFR conditions Tuesday afternoon.

Kpdx and approaches...VFR through late tonight with passing mid
and high clouds. Thunderstorms are possible over the cascades
through this evening, but don't think they will impact the
terminal. MVFR stratus develops after 10z Tuesday with cigs
generally around 1500 ft.VFR conditions return by mid Tuesday.

64

Marine Quiet weather with no significant concerns for the next
of couple days. A thermal trough will strengthen Wednesday and
Thursday along the southern oregon coast bringing gusts of 25 to
30 kt mainly across the central oregon waters. A small craft
advisory may be issued during this time if this trend holds in
future model runs. Fairly calm seas with the primary swell out of
the northwest at 3 ft, 8 sec and significant wave heights
staying between 3 and 4 ft before Wednesday. Seas will reach 6
ft Wednesday and Thursday as a product of increased wind wave
height and will stay around 5 or 6 ft due to an increased primary
swell height through the weekend. -bphillips jbonk

Pqr watches warnings advisories
Or... None.

Wa... None.

Pz... None.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TCNW1 - 9446484 - Tacoma, WA 75 mi50 min 79°F 56°F1017.3 hPa
LOPW1 - 9440422 - Longview, WA 76 mi50 min 70°F1017.4 hPa
TCMW1 - 9446482 - Tacoma Met, WA 76 mi50 min NW 8.9 G 11

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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1 day ago53------------------------322SW632SE2E21S2
2 days ago----------------------------1214334434

Tide / Current Tables for Kalama, Washington - IGNORE HEIGHTS
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Saint Helens, Columbia River, Oregon
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Weather Map and Satellite Images
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wmap_P
GOES 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.
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Other links: Northern Pacific     Contential US     Full GOES-East
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.